stealc | f7d5e31a90a7a436fb88277e0920c9675b69fa37eee1b97120a27f792ea8ca1d

Analysis

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

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
23-09-2024 13:22

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General

Target

file.exe
Size

197KB
MD5

8f51409e0119d80da56d1bcddbe960b7
SHA1

5ddf8d0198b0646472038f887caaee50f35f4f2e
SHA256

f7d5e31a90a7a436fb88277e0920c9675b69fa37eee1b97120a27f792ea8ca1d
SHA512

bafc8becd7958405e3d6ec195483d2e20bd6eb52a89845ad9fcc0351d54525d03599f66bdf0440f421e25f1ad482a2bc85eb017d8239b7525944be908af391d1
SSDEEP

3072:yrsR+CX0WGYN8vWneNvsR4cByR28jzzlpcJO9hVpfCV0MY7QxFJn2IK:wsP0WGY7jR4ccfe0P7qJ2

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 2604 set thread context of 2204	2604	file.exe	30

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2876	2204	WerFault.exe	30

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

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2204	2604	file.exe	30
PID 2604 wrote to memory of 2204	2604	file.exe	30
PID 2604 wrote to memory of 2204	2604	file.exe	30
PID 2604 wrote to memory of 2204	2604	file.exe	30
PID 2604 wrote to memory of 2204	2604	file.exe	30
PID 2604 wrote to memory of 2204	2604	file.exe	30
PID 2604 wrote to memory of 2204	2604	file.exe	30
PID 2604 wrote to memory of 2204	2604	file.exe	30
PID 2604 wrote to memory of 2204	2604	file.exe	30
PID 2604 wrote to memory of 2204	2604	file.exe	30
PID 2604 wrote to memory of 2204	2604	file.exe	30
PID 2604 wrote to memory of 2204	2604	file.exe	30
PID 2604 wrote to memory of 2204	2604	file.exe	30
PID 2204 wrote to memory of 2876	2204	RegAsm.exe	31
PID 2204 wrote to memory of 2876	2204	RegAsm.exe	31
PID 2204 wrote to memory of 2876	2204	RegAsm.exe	31
PID 2204 wrote to memory of 2876	2204	RegAsm.exe	31

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:2604
- 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:2204
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2204 -s 252
    3⤵
    - Program crash
    PID:2876

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/2204-6-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2204-3-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2204-13-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2204-15-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2204-10-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2204-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2204-7-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2204-5-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2204-4-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2604-1-0x0000000000360000-0x0000000000398000-memory.dmp

Filesize
224KB

Download
memory/2604-11-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2604-0-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/2604-16-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download