expiro | f6b32eb66bef73fd5654269f549f41b3114e52b2713bc0b749036e7bfae90c47

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17/04/2024, 10:19

Target
f58bb4eef7f265e5df8fb1006056ac49_JaffaCakes118.exe
Size 417KB
Sample240417-mcvp8ade31
SHA256 f6b32eb66bef73fd5654269f549f41b3114e52b2713bc0b749036e7bfae90c47
MD5 f58bb4eef7f265e5df8fb1006056ac49
SHA1 214641f2aa88d64b191b7bd3cb8275c7651554c6
SHA512 585d00e549b42c630af38143ce6914221cc5649f6adc58eff9bd1d9fc9cad5eaac0002570b741a9dbecb8642d04920435dd73aadeffcac1faca9a5937b4f4fc6
SSDEEP 6144:vSpwTEOzPSK5U2SoJ8VWackcV1ZmXRWLgKocUq8nOfaIROo71YvK09lw+45B:6+IK5U2SoysXmwLQcUqgsPBYv745B
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

expiro backdoor

Expiro, m0yv
Expiro aka m0yv is a multi-functional backdoor written in C++.
backdoor expiro

Expiro payload 3 IoCs

backdoor

resource	yara_rule
behavioral1/memory/2068-0-0x0000000000020000-0x000000000011F000-memory.dmp	family_expiro1
behavioral1/memory/2068-1-0x0000000000020000-0x000000000011F000-memory.dmp	family_expiro1
behavioral1/memory/2068-2-0x0000000000020000-0x000000000011F000-memory.dmp	family_expiro1

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2696	2068	WerFault.exe	27

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 2696	2068	f58bb4eef7f265e5df8fb1006056ac49_JaffaCakes118.exe	28
PID 2068 wrote to memory of 2696	2068	f58bb4eef7f265e5df8fb1006056ac49_JaffaCakes118.exe	28
PID 2068 wrote to memory of 2696	2068	f58bb4eef7f265e5df8fb1006056ac49_JaffaCakes118.exe	28
PID 2068 wrote to memory of 2696	2068	f58bb4eef7f265e5df8fb1006056ac49_JaffaCakes118.exe	28

C:\Users\Admin\AppData\Local\Temp\f58bb4eef7f265e5df8fb1006056ac49_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f58bb4eef7f265e5df8fb1006056ac49_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2068 -s 68
  2⤵
  - Program crash
  PID:2696

memory/2068-0-0x0000000000020000-0x000000000011F000-memory.dmp

Download

memory/2068-1-0x0000000000020000-0x000000000011F000-memory.dmp

Download

memory/2068-2-0x0000000000020000-0x000000000011F000-memory.dmp

Download