stealc | a0add2ff01fd0b1c7a259a9b0f0bdee713a7edbbf12fa18820fc95a373254e3b

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-09-2024 14:03

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General

Target

file.exe
Size

216KB
MD5

9a29528b1463ae389bd3e03e4e686a56
SHA1

0cefb61f8615c6ed5606360db20adecdedf4c59c
SHA256

a0add2ff01fd0b1c7a259a9b0f0bdee713a7edbbf12fa18820fc95a373254e3b
SHA512

34743dd19630de9802258476e6c9aacd14b7338c9e1c22c0369e759844b3248570b272c7edbc89079fe5eb8f375c7e2680e71f88ab5b8a4c01ba4d7ef116f9ae
SSDEEP

6144:mebX1UAoZZJAttlJ7VTUEioaTwfyhv3pVdPRigEO:mejOA0ZJutHNI106hfpRhEO

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 1204 set thread context of 2472	1204	file.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2456	2472	WerFault.exe	31

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 1204 wrote to memory of 2472	1204	file.exe	31
PID 1204 wrote to memory of 2472	1204	file.exe	31
PID 1204 wrote to memory of 2472	1204	file.exe	31
PID 1204 wrote to memory of 2472	1204	file.exe	31
PID 1204 wrote to memory of 2472	1204	file.exe	31
PID 1204 wrote to memory of 2472	1204	file.exe	31
PID 1204 wrote to memory of 2472	1204	file.exe	31
PID 1204 wrote to memory of 2472	1204	file.exe	31
PID 1204 wrote to memory of 2472	1204	file.exe	31
PID 1204 wrote to memory of 2472	1204	file.exe	31
PID 1204 wrote to memory of 2472	1204	file.exe	31
PID 1204 wrote to memory of 2472	1204	file.exe	31
PID 1204 wrote to memory of 2472	1204	file.exe	31
PID 2472 wrote to memory of 2456	2472	RegAsm.exe	32
PID 2472 wrote to memory of 2456	2472	RegAsm.exe	32
PID 2472 wrote to memory of 2456	2472	RegAsm.exe	32
PID 2472 wrote to memory of 2456	2472	RegAsm.exe	32

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:1204
- 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:2472
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2472 -s 252
    3⤵
    - Program crash
    PID:2456

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/1204-0-0x00000000744CE000-0x00000000744CF000-memory.dmp

Filesize
4KB

Download
memory/1204-1-0x0000000001000000-0x0000000001038000-memory.dmp

Filesize
224KB

Download
memory/1204-2-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/1204-5-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/1204-14-0x0000000002440000-0x0000000004440000-memory.dmp

Filesize
32.0MB

Download
memory/1204-17-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2472-16-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2472-13-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2472-19-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2472-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2472-10-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2472-9-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2472-7-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2472-8-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2472-6-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download