stealc | dc154a3e2e3a5937a626a3b2456a95a1265d064a3e7c612ee809990783703367

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2024 01:00

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce.exe
Size

275KB
MD5

0a7b3454fdad8431bd3523648c915665
SHA1

800a97a7c1a92a92cac76afc1fe5349895ee5287
SHA256

baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce
SHA512

020e45eaeee083d6739155d9a821ab54dd07f1320b8efb73871ee5d29188122fdbb7d39b34a8b3694a8b0c08ae1801ec370e40ff8d837c9190a72905f26baff9
SSDEEP

6144:vh0ZpFC4sffny7TuLBdZlT4DIJYdy3g8ioyrN:vh0ZpFCfB3TGyYy3biBZ

Score

10^/10

stealc vidar 41d35cbb974bc2d1287dcd4381b4a2a8 discovery stealer

Malware Config

Extracted

Family

vidar

Version

11.8

Botnet

41d35cbb974bc2d1287dcd4381b4a2a8

https://t.me/fu4chmo

https://steamcommunity.com/profiles/76561199802540894

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15 Ddg/17.6

Signatures

Detect Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral2/memory/2836-0-0x0000000000C40000-0x0000000000E99000-memory.dmp	family_vidar_v7
behavioral2/memory/2836-18-0x0000000000C40000-0x0000000000E99000-memory.dmp	family_vidar_v7

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Vidar family
vidar

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2428	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2836	baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce.exe
2836	baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2836 wrote to memory of 2156	2836	baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce.exe	89
PID 2836 wrote to memory of 2156	2836	baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce.exe	89
PID 2836 wrote to memory of 2156	2836	baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce.exe	89
PID 2156 wrote to memory of 2428	2156	cmd.exe	91
PID 2156 wrote to memory of 2428	2156	cmd.exe	91
PID 2156 wrote to memory of 2428	2156	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce.exe
"C:\Users\Admin\AppData\Local\Temp\baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce.exe" & rd /s /q "C:\ProgramData\JJKJDAEBFCBK" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2156
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 10
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2836-0-0x0000000000C40000-0x0000000000E99000-memory.dmp

Filesize
2.3MB

Download
memory/2836-18-0x0000000000C40000-0x0000000000E99000-memory.dmp

Filesize
2.3MB

Download