stealc | 12ca4ad8cd613c8d086cd39a5c6e787c12209f2271ba850817b72eae3cd559da

Analysis

max time kernel
93s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
submitted
30-11-2024 21:16

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General

Target

lyjdfjthawd.exe

Score

10^/10

stealc vidar 0174ec9d0ab5d3dd4d0bbe7415cfa10c discovery stealer

Malware Config

Extracted

Family

vidar

Version

11.8

Botnet

0174ec9d0ab5d3dd4d0bbe7415cfa10c

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
behavioral24/memory/1732-0-0x0000000000210000-0x0000000000469000-memory.dmp	family_vidar_v7
behavioral24/memory/1732-16-0x0000000000210000-0x0000000000469000-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	lyjdfjthawd.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	lyjdfjthawd.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	lyjdfjthawd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	lyjdfjthawd.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1772	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1732	lyjdfjthawd.exe
1732	lyjdfjthawd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 4528	1732	lyjdfjthawd.exe	96
PID 1732 wrote to memory of 4528	1732	lyjdfjthawd.exe	96
PID 1732 wrote to memory of 4528	1732	lyjdfjthawd.exe	96
PID 4528 wrote to memory of 1772	4528	cmd.exe	98
PID 4528 wrote to memory of 1772	4528	cmd.exe	98
PID 4528 wrote to memory of 1772	4528	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\lyjdfjthawd.exe
"C:\Users\Admin\AppData\Local\Temp\lyjdfjthawd.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:1732
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\lyjdfjthawd.exe" & rd /s /q "C:\ProgramData\HDBKJEGIEBFH" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4528
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 10
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1772

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

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Downloads

memory/1732-0-0x0000000000210000-0x0000000000469000-memory.dmp

Filesize
2.3MB

Download
memory/1732-16-0x0000000000210000-0x0000000000469000-memory.dmp

Filesize
2.3MB

Download