stealc | bb28bb63ed34a3b4f97a0a26bda8a7a7c60f961010c795007edc52576b89e4d3

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-10-2024 20:24

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General

Target

file.exe
Size

336KB
MD5

022cc85ed0f56a3f3e8aec4ae3b80a71
SHA1

a89b9c39c5f6fcb6e770cea9491bf7a97f0f012d
SHA256

bb28bb63ed34a3b4f97a0a26bda8a7a7c60f961010c795007edc52576b89e4d3
SHA512

ac549b9cf50e631bae01152db4523fdab55f426ee77177af900b088244665e28de03c10784fe9db33a2478bee0d96bd50e5a668d2a2bfdff3e8706aa8f5d71a2
SSDEEP

6144:X5EAq+eU9BhaikesEDBVqaDf5kLslwEIF4TN4ha/qks1l9QjjmQ+Nb/Q5AQEO:J5vlBQB/EDBkaDRkyZIF4TN4o/29QjK0

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 2532 set thread context of 1960	2532	file.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2716	1960	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 2532 wrote to memory of 1960	2532	file.exe	31
PID 2532 wrote to memory of 1960	2532	file.exe	31
PID 2532 wrote to memory of 1960	2532	file.exe	31
PID 2532 wrote to memory of 1960	2532	file.exe	31
PID 2532 wrote to memory of 1960	2532	file.exe	31
PID 2532 wrote to memory of 1960	2532	file.exe	31
PID 2532 wrote to memory of 1960	2532	file.exe	31
PID 2532 wrote to memory of 1960	2532	file.exe	31
PID 2532 wrote to memory of 1960	2532	file.exe	31
PID 2532 wrote to memory of 1960	2532	file.exe	31
PID 2532 wrote to memory of 1960	2532	file.exe	31
PID 2532 wrote to memory of 1960	2532	file.exe	31
PID 2532 wrote to memory of 1960	2532	file.exe	31
PID 1960 wrote to memory of 2716	1960	RegAsm.exe	32
PID 1960 wrote to memory of 2716	1960	RegAsm.exe	32
PID 1960 wrote to memory of 2716	1960	RegAsm.exe	32
PID 1960 wrote to memory of 2716	1960	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:2532
- 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:1960
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1960 -s 252
    3⤵
    - Program crash
    PID:2716

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/1960-6-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/1960-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1960-16-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/1960-19-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/1960-4-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/1960-7-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/1960-9-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/1960-11-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/1960-14-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/2532-0-0x00000000740AE000-0x00000000740AF000-memory.dmp

Filesize
4KB

Download
memory/2532-1-0x0000000001330000-0x0000000001386000-memory.dmp

Filesize
344KB

Download
memory/2532-5-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download
memory/2532-17-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download
memory/2532-2-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download