stealc | 84844b745d886eebbe814e0b9b05fd921a252019e27661a447a1103c8937f997

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-09-2024 01:51

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General

Target

file.exe
Size

326KB
MD5

10d006a7541fa517e818d9d7d9787deb
SHA1

c9d7349fb4d305604c1ccabe0e7dfe28f9d3a858
SHA256

84844b745d886eebbe814e0b9b05fd921a252019e27661a447a1103c8937f997
SHA512

3a0b245830a67a94b25e67e6582be71f59fab54abe26e6fd0f9a584ef7a4dc228bdb790a986750947817bc986c3b81763882b5a7f5bc17de62e34b17bf37dd32
SSDEEP

6144:CkNFUH0fMA9uqoJuDew+xO0I7eJetJUIgUjC/0LY716rYub2SrBL6+6nAEO:Ca3MAvYUZ+xVMpTe8076b2SrklnAEO

Score

10^/10

stealc default discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

default

http://46.8.231.109

Attributes

url_path
/c4754d4f680ead72.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 320 set thread context of 2384	320	file.exe	32

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2220	2384	WerFault.exe	32

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 320 wrote to memory of 2384	320	file.exe	32
PID 320 wrote to memory of 2384	320	file.exe	32
PID 320 wrote to memory of 2384	320	file.exe	32
PID 320 wrote to memory of 2384	320	file.exe	32
PID 320 wrote to memory of 2384	320	file.exe	32
PID 320 wrote to memory of 2384	320	file.exe	32
PID 320 wrote to memory of 2384	320	file.exe	32
PID 320 wrote to memory of 2384	320	file.exe	32
PID 320 wrote to memory of 2384	320	file.exe	32
PID 320 wrote to memory of 2384	320	file.exe	32
PID 320 wrote to memory of 2384	320	file.exe	32
PID 320 wrote to memory of 2384	320	file.exe	32
PID 320 wrote to memory of 2384	320	file.exe	32
PID 2384 wrote to memory of 2220	2384	RegAsm.exe	33
PID 2384 wrote to memory of 2220	2384	RegAsm.exe	33
PID 2384 wrote to memory of 2220	2384	RegAsm.exe	33
PID 2384 wrote to memory of 2220	2384	RegAsm.exe	33

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:320
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2384
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 252
    3⤵
    - Program crash
    PID:2220

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/320-11-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/320-1-0x00000000000B0000-0x0000000000106000-memory.dmp

Filesize
344KB

Download
memory/320-16-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/320-0-0x000000007403E000-0x000000007403F000-memory.dmp

Filesize
4KB

Download
memory/2384-6-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/2384-7-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/2384-12-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/2384-5-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/2384-4-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/2384-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2384-3-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/2384-15-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/2384-13-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download