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injectcoc.js
executable file
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injectcoc.js
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setTimeout(function() {
inject();
}, 0)
function ba2hex(bufArray) {
var uint8arr = new Uint8Array(bufArray);
if (!uint8arr) {
return '';
}
var hexStr = '';
for (var i = 0; i < uint8arr.length; i++) {
var hex = (uint8arr[i] & 0xff).toString(16);
hex = (hex.length === 1) ? '0' + hex : hex;
hexStr += hex;
}
return hexStr.toUpperCase();
}
function chainAttack(base) {
Interceptor.detachAll();
var pt4 = ptr(parseInt(base) + 1 + parseInt(0x3DFB70));
var pt5 = ptr(parseInt(base) + parseInt(0x3dfb86));
var pt7 = ptr(parseInt(base) + 1 + parseInt(0x3e8d22));
var pt10 = ptr(parseInt(base) + 1 + parseInt(0x3ECD4A));
var pt11 = ptr(parseInt(base) + 1 + parseInt(0x3E8EB4));
var pt12 = ptr(parseInt(base) + 1 + parseInt(0x3EE052));
var pt13 = ptr(parseInt(base) + 1 + parseInt(0x3EAABA));
var pt14 = ptr(parseInt(base) + 1 + parseInt(0x3ED204));
var pt15 = ptr(parseInt(base) + 1 + parseInt(0x3EDFFC));
var pt16 = ptr(parseInt(base) + 1 + parseInt(0x3EE0AA));
var pt17 = ptr(parseInt(base) + 1 + parseInt(0x3EAEFC));
var pt18 = ptr(parseInt(base) + 1 + parseInt(0x3EAA26));
var pt19 = ptr(parseInt(base) + 1 + parseInt(0x3EB4AA));
var pt20 = ptr(parseInt(base) + 1 + parseInt(0x3EDAF2));
var pt21 = ptr(parseInt(base) + 1 + parseInt(0x3E0626));
var pt22 = ptr(parseInt(base) + 1 + parseInt(0x3EA9C2));
var pt23 = ptr(parseInt(base) + 1 + parseInt(0x3EA4EA));
var pt24 = ptr(parseInt(base) + 1 + parseInt(0x3EAF56));
var pt25 = ptr(parseInt(base) + 1 + parseInt(0x3EA318));
var scalar_mul_write = ptr(parseInt(base) + 1 + 0x3E0F08);
var second_op_key = ptr(parseInt(base) + 1 + 0x3e12c8)
var second_op_key_part_builder_1 = ptr(parseInt(base) + 1 + 0x3e105a)
var second_op_key_part_builder_2 = ptr(parseInt(base) + 1 + 0x3e106c)
var second_op_key_part_builder_3 = ptr(parseInt(base) + 1 + 0x3e10d8)
var second_op_key_part_builder_4 = ptr(parseInt(base) + 1 + 0x3e137a)
var hsalsa20_push_registers = ptr(parseInt(base) + 1 + 0x3e12a2)
var hsalsa20_after_push = ptr(parseInt(base) + 1 + 0x3e12b4)
var mid_check_ptr_1 = ptr(parseInt(base) + 1 + 0x3E10F6)
var payload_memcpy = ptr(parseInt(base) + 1 + 0x3dfc54)
// Everything before is solved, left for debugging purpose.
var memcpy_44 = ptr(parseInt(base) + 1 + 0x3e8d22)
var last_memcpy_44 = ptr(parseInt(base) + 1 + 0x3e8daa)
var memclr8pt = ptr(parseInt(base) + parseInt(0x040D34));
r8pt = 0;
Interceptor.attach(payload_memcpy, function(args) {
console.log("PAYLOAD MEMCPY")
console.log(Memory.readByteArray(args[1], parseInt(args[2])))
console.log("=======================")
console.log("r0: " + this.context.r0)
console.log("r1: " + this.context.r1)
console.log("r2: " + this.context.r2)
console.log("r3: " + this.context.r3)
console.log("r4: " + this.context.r4)
console.log("r5: " + this.context.r5)
console.log("r6: " + this.context.r6)
console.log("r7: " + this.context.r7)
console.log("r8: " + this.context.r8)
console.log("r9: " + this.context.r9)
console.log("r10: " + this.context.r10)
console.log("r11: " + this.context.r11)
console.log("r12: " + this.context.r12)
console.log("sp: " + this.context.sp)
console.log("pc: " + this.context.pc)
console.log("lr: " + this.context.lr)
console.log("=======================")
})
Interceptor.attach(pt4, function(args) {
Memory.writeByteArray(args[0], [0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF])
})
Interceptor.attach(ptr(parseInt(pt5) + 1), {
onEnter: function (args) {
r8pt = this.context.r8;
var tail = ptr(parseInt(base) + 0x8D2684);
console.log("Entering at " + pt5)
console.log("LIBG_ADDRESS = " + base)
console.log("R4_ADDR = " + this.context.r4)
console.log("R8_ADDR = " + this.context.r8)
console.log("R12_ADDR = " + this.context.r12)
console.log("SP_ADDR = " + this.context.sp)
console.log("Image end at: " + tail)
console.log("=======================")
console.log("r0: " + this.context.r0)
console.log("r1: " + this.context.r1)
console.log("r2: " + this.context.r2)
console.log("r3: " + this.context.r3)
console.log("r4: " + this.context.r4)
console.log("r5: " + this.context.r5)
console.log("r6: " + this.context.r6)
console.log("r7: " + this.context.r7)
console.log("r8: " + this.context.r8)
console.log("r9: " + this.context.r9)
console.log("r10: " + this.context.r10)
console.log("r11: " + this.context.r11)
console.log("r12: " + this.context.r12)
console.log("sp: " + this.context.sp)
console.log("pc: " + this.context.pc)
console.log("lr: " + this.context.lr)
console.log("=======================")
// dumping image base
a = Memory.readByteArray(base, parseInt(tail) - parseInt(base))
// dumping stackpointer
var sp_start = parseInt(this.context.sp) - 0x48000
var sp_end = parseInt(this.context.sp) + 0x48000
b = Memory.readByteArray(ptr(sp_start), sp_end - sp_start)
// dumping extra higher memory 1
var e1_start = parseInt(this.context.r8) - 0x200
var e1_end = parseInt(this.context.r8) + 0x200
c = Memory.readByteArray(ptr(e1_start), e1_end - e1_start)
// dumping extra higher memory 2
var e2_start = parseInt(this.context.r12) - 0x4000
var e2_end = parseInt(this.context.r12) + 0x5000
d = Memory.readByteArray(ptr(e2_start), e2_end - e2_start)
// dumping extra lower memory 1
var e3_start = parseInt(this.context.r4) - 0x500
var e3_end = parseInt(this.context.r4) + 0x500
e = Memory.readByteArray(ptr(e3_start), e3_end - e3_start)
send("5::::", a)
send("6::::", b)
send("7::::", c)
send("8::::", d)
send("9::::", e)
if (true) {
Interceptor.attach(scalar_mul_write, function(args) {
console.log("writing scalarmul")
console.log(this.context.r1)
})
Interceptor.attach(second_op_key, function(args) {
console.log("second op")
console.log(this.context.r2)
})
Interceptor.attach(hsalsa20_push_registers, function(args) {
console.log("HSALSA PUSH")
console.log("=======================")
console.log("r0: " + this.context.r0)
console.log("r1: " + this.context.r1)
console.log("r2: " + this.context.r2)
console.log("r3: " + this.context.r3)
console.log("r4: " + this.context.r4)
console.log("r5: " + this.context.r5)
console.log("r6: " + this.context.r6)
console.log("r7: " + this.context.r7)
console.log("r8: " + this.context.r8)
console.log("r9: " + this.context.r9)
console.log("r10: " + this.context.r10)
console.log("r11: " + this.context.r11)
console.log("r12: " + this.context.r12)
console.log("sp: " + this.context.sp)
console.log("pc: " + this.context.pc)
console.log("lr: " + this.context.lr)
console.log("=======================")
})
Interceptor.attach(hsalsa20_after_push, function(args) {
console.log("HSALSA AFTER PUSH")
console.log("=======================")
console.log("r0: " + this.context.r0)
console.log("r1: " + this.context.r1)
console.log("r2: " + this.context.r2)
console.log("r3: " + this.context.r3)
console.log("r4: " + this.context.r4)
console.log("r5: " + this.context.r5)
console.log("r6: " + this.context.r6)
console.log("r7: " + this.context.r7)
console.log("r8: " + this.context.r8)
console.log("r9: " + this.context.r9)
console.log("r10: " + this.context.r10)
console.log("r11: " + this.context.r11)
console.log("r12: " + this.context.r12)
console.log("sp: " + this.context.sp)
console.log("pc: " + this.context.pc)
console.log("lr: " + this.context.lr)
console.log("=======================")
})
Interceptor.attach(mid_check_ptr_1, function(args) {
console.log("MIDCHECK")
console.log(Memory.readByteArray(this.context.r0, 32))
console.log("=======================")
console.log("r0: " + this.context.r0)
console.log("r1: " + this.context.r1)
console.log("r2: " + this.context.r2)
console.log("r3: " + this.context.r3)
console.log("r4: " + this.context.r4)
console.log("r5: " + this.context.r5)
console.log("r6: " + this.context.r6)
console.log("r7: " + this.context.r7)
console.log("r8: " + this.context.r8)
console.log("r9: " + this.context.r9)
console.log("r10: " + this.context.r10)
console.log("r11: " + this.context.r11)
console.log("r12: " + this.context.r12)
console.log("sp: " + this.context.sp)
console.log("pc: " + this.context.pc)
console.log("lr: " + this.context.lr)
console.log("=======================")
})
}
},
onLeave: function(retval) {
console.log("Leaving enc");
console.log(Memory.readByteArray(r8pt, 200))
}
});
Interceptor.attach(Module.findExportByName("libg.so", "send"), {
onEnter: function (args) {
var b = ba2hex(Memory.readByteArray(args[1], parseInt(args[2])));
console.log("SEND " + b)
if (b.length < 7) {
return;
}
var msgId = parseInt("0x" + b.substring(0, 4));
if (msgId < 10000 || msgId > 30000) {
console.log(msgId + " blocked. " + b.substring(0, 14));
return;
}
send("3::::" + b);
}
});
var pl = null;
var buf;
var nLen = 0;
var pLen = 0;
Interceptor.attach(Module.findExportByName("libg.so", "recv"), {
onEnter: function (args) {
buf = args[1];
},
onLeave: function (retval) {
var len = parseInt(retval);
if (pl === null && len !== 7) {
return;
}
if (pl === null) {
pl = ba2hex(Memory.readByteArray(buf, len));
nLen = parseInt("0x" + pl.substring(4, 10));
} else {
pl += ba2hex(Memory.readByteArray(buf, len));
pLen += len;
if (pLen === nLen) {
send("4::::" + pl);
pl = null;
nLen = 0;
pLen = 0;
}
}
}
});
}
function inject() {
Process.enumerateModules({
onMatch: function (module) {
if (module.name === "libg.so") {
var base = module.base;
var pt1 = ptr(parseInt(base) + 1 + parseInt(0x3B3C5E));
var pt2 = ptr(parseInt(base) + 1 + parseInt(0x0C4CDC));
var pt3 = ptr(parseInt(base) + 1 + parseInt(0x1C6EE2));
// attaching memclr8 to skip jump the crc :P
var pt4 = ptr(parseInt(base) + parseInt(0x040D34));
var pt6 = ptr(parseInt(base) + 1 + parseInt(0x1ADDA4))
var pr_frck = ptr(parseInt(base) + 1 + parseInt(0x060270))
// kill new coc frida detection
Interceptor.attach(pr_frck, {
onEnter: function (args) {
this.context.r0 = 0xFF
}
});
Interceptor.attach(Module.findExportByName("libg.so", "send"), {
onEnter: function (args) {
var msgId = parseInt("0x" + ba2hex(Memory.readByteArray(ptr(args[1]), 2)));
if (msgId < 10000 || msgId > 30000) {
return;
}
if (msgId === 10100) {
console.log(ba2hex(Memory.readByteArray(ptr(args[1]), parseInt(args[2]))))
Interceptor.detachAll();
var rbuf;
Interceptor.attach(Module.findExportByName("libg.so", "recv"), {
onEnter: function (args) {
rbuf = args[1];
},
onLeave: function (retval) {
console.log(ba2hex(Memory.readByteArray(rbuf, parseInt(retval))));
}
});
Interceptor.attach(pt1, {
onEnter: function (args) {
var pk;
var sk;
Interceptor.attach(pt2, {
onEnter: function (args) {
pk = args[0];
sk = args[1];
},
onLeave: function (retval) {
Memory.writeByteArray(pk, [0x4C, 0xA4, 0x6C, 0x7B, 0xB1, 0xA1, 0xF4, 0x6B, 0x3F, 0x9F, 0x9C, 0x9B, 0x1D, 0x6A, 0xB4, 0x49, 0xB5, 0x17, 0x15, 0x65, 0x3B, 0x61, 0x75, 0xAE, 0x4B, 0x59, 0xF3, 0xE7, 0xA4, 0x71, 0x42, 0x5B])
Memory.writeByteArray(sk, [0x8E, 0xEC, 0x28, 0x68, 0x87, 0xF8, 0x51, 0xB3, 0x03, 0xD2, 0x88, 0xED, 0xC5, 0x6A, 0x99, 0x49, 0xFA, 0xDD, 0x17, 0xFB, 0x33, 0x21, 0x21, 0xC8, 0x29, 0x96, 0x91, 0x66, 0x50, 0x8C, 0x31, 0x62])
send("0::::" + ba2hex(Memory.readByteArray(pk, 32)));
send("1::::" + ba2hex(Memory.readByteArray(sk, 32)));
Interceptor.detachAll();
var i = 0;
Interceptor.attach(pt4, {
onEnter: function (args) {
if (i == 40 && parseInt(args[1]) == 64) {
i++;
console.log("attaching blake")
Interceptor.detachAll();
Interceptor.attach(pt3, {
onEnter: function (args) {
b2ret = args[0];
send("2::::" + ba2hex(Memory.readByteArray(ptr(parseInt(b2ret) + 132), 32)));
},
onLeave: function (retval) {
Memory.writeByteArray(ptr(parseInt(b2ret) + 4), [0x8F, 0x63, 0x10, 0x34, 0x7F, 0x46, 0xD5, 0x2C, 0x14, 0xB7, 0xBB, 0x57, 0xD7, 0xFF, 0x67, 0x25, 0xEC, 0x53, 0xB7, 0xBA, 0x16, 0x57, 0x77, 0x22])
console.log("b2hash: " + ba2hex(Memory.readByteArray(b2ret, 32)));
chainAttack(base);
}
});
} else if (parseInt(args[1]) == 64) {
i++
}
}
});
}
});
}
});
}
}
});
}
},
onComplete: function () {
}
});
}