expiro | 248ad1e3c0b9078006a48fe793f75362a435addff3386fe02f18d4c4331d08aa

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/04/2024, 16:57

Target

ea783ac96b335efd74756a84f3d64215_JaffaCakes118.exe
Size

476KB
MD5

ea783ac96b335efd74756a84f3d64215
SHA1

0002d031a384af295716a24ead55cfd900efbb34
SHA256

248ad1e3c0b9078006a48fe793f75362a435addff3386fe02f18d4c4331d08aa
SHA512

6deeeef2bb719b08c008fba14aae3dfc64ea28cdf8b97e88c45360dcd0239c9e1a61144eabb84505ee6be6193f49034c572f5072c3893e95ac15c06f18c91bb6
SSDEEP

12288:KYmIjE7eNdKcWEbr2Ubr4TgyUbZm6qCs8e/G:m7eNAYbr2Ub8T5geL

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/1948-0-0x0000000000BC0000-0x0000000000CCF000-memory.dmp	family_expiro1
behavioral1/memory/1948-1-0x0000000000BC0000-0x0000000000CCF000-memory.dmp	family_expiro1
behavioral1/memory/1948-2-0x0000000000BC0000-0x0000000000CCF000-memory.dmp	family_expiro1

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1144	1948	WerFault.exe	27

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1948 wrote to memory of 1144	1948	ea783ac96b335efd74756a84f3d64215_JaffaCakes118.exe	29
PID 1948 wrote to memory of 1144	1948	ea783ac96b335efd74756a84f3d64215_JaffaCakes118.exe	29
PID 1948 wrote to memory of 1144	1948	ea783ac96b335efd74756a84f3d64215_JaffaCakes118.exe	29
PID 1948 wrote to memory of 1144	1948	ea783ac96b335efd74756a84f3d64215_JaffaCakes118.exe	29

C:\Users\Admin\AppData\Local\Temp\ea783ac96b335efd74756a84f3d64215_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ea783ac96b335efd74756a84f3d64215_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1948 -s 144
  2⤵
  - Program crash
  PID:1144

memory/1948-0-0x0000000000BC0000-0x0000000000CCF000-memory.dmp

Filesize
1.1MB

Download
memory/1948-1-0x0000000000BC0000-0x0000000000CCF000-memory.dmp

Filesize
1.1MB

Download
memory/1948-2-0x0000000000BC0000-0x0000000000CCF000-memory.dmp

Filesize
1.1MB

Download