stealc | 2d63ff4e2c1bde1601315d12ea75a52c90b7e203f8a8e6140ab1da2e0d8a9554

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
03/10/2024, 09:55

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General

Target

file.exe
Size

327KB
MD5

1c5c4583fac0f0a8d4d5cce4f09fea4b
SHA1

93cbd37b219bca4782868d1cff6b009f7d83a81f
SHA256

2d63ff4e2c1bde1601315d12ea75a52c90b7e203f8a8e6140ab1da2e0d8a9554
SHA512

98ecba4533f4cf3ab99338783e4899a01b15358113982139f676ee64841ae08a3729660c2f8feaa6789af0926955d1ff3ed694c791effd3370f936ca95d19b11
SSDEEP

6144:PrJ+KUXaXzLZYZEcpbz03Tiaz/5b+hyDt0DfIgL3yUG80dS4Dk+xkAQpA6hh/xJ:PV+KMaXfZYZEcpbID9RL2ss3yN8Z4Qnd

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 2684 set thread context of 2716	2684	file.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2760	2716	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 2684 wrote to memory of 2716	2684	file.exe	31
PID 2684 wrote to memory of 2716	2684	file.exe	31
PID 2684 wrote to memory of 2716	2684	file.exe	31
PID 2684 wrote to memory of 2716	2684	file.exe	31
PID 2684 wrote to memory of 2716	2684	file.exe	31
PID 2684 wrote to memory of 2716	2684	file.exe	31
PID 2684 wrote to memory of 2716	2684	file.exe	31
PID 2684 wrote to memory of 2716	2684	file.exe	31
PID 2684 wrote to memory of 2716	2684	file.exe	31
PID 2684 wrote to memory of 2716	2684	file.exe	31
PID 2684 wrote to memory of 2716	2684	file.exe	31
PID 2684 wrote to memory of 2716	2684	file.exe	31
PID 2684 wrote to memory of 2716	2684	file.exe	31
PID 2716 wrote to memory of 2760	2716	RegAsm.exe	32
PID 2716 wrote to memory of 2760	2716	RegAsm.exe	32
PID 2716 wrote to memory of 2760	2716	RegAsm.exe	32
PID 2716 wrote to memory of 2760	2716	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:2684
- 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:2716
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2716 -s 252
    3⤵
    - Program crash
    PID:2760

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/2684-12-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/2684-1-0x0000000000EF0000-0x0000000000F46000-memory.dmp

Filesize
344KB

Download
memory/2684-2-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/2684-13-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/2684-0-0x00000000749EE000-0x00000000749EF000-memory.dmp

Filesize
4KB

Download
memory/2716-11-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/2716-15-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/2716-8-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/2716-7-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/2716-6-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/2716-5-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/2716-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-4-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/2716-17-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download