stealc | 54267849112931dc771eac100a8e3302f224f5071cc6211723e5acf89bf69156

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2024 09:58

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General

Target

file.exe
Size

275KB
MD5

0abcf5f274cf19c6f9c75954e9b6a182
SHA1

e39e1cecaffce08ffd9388ded9e13132e1eb6d51
SHA256

54267849112931dc771eac100a8e3302f224f5071cc6211723e5acf89bf69156
SHA512

c61dc07371b03d9a959ff7caac8265eea345fa78e4939d0a4d9491ef879287046ec6e0847b4067c3043fb97f4c1f94c2ac0f5bbc9ba18716ef6e02a4268f02fd
SSDEEP

6144:dh0ZpFC4sffny7TuLBdZlT4DIJYdy3F8ioyrN:dh0ZpFCfB3TGyYy3uiBZ

Score

10^/10

stealc vidar fc02efe1cfb2a62f36f33fff0274fb41 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

11.8

Botnet

fc02efe1cfb2a62f36f33fff0274fb41

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/1396-0-0x0000000000C60000-0x0000000000EB9000-memory.dmp	family_vidar_v7
behavioral2/memory/1396-18-0x0000000000C60000-0x0000000000EB9000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	file.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
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	file.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	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	file.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3280	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1396	file.exe
1396	file.exe
1396	file.exe
1396	file.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1396 wrote to memory of 2836	1396	file.exe	87
PID 1396 wrote to memory of 2836	1396	file.exe	87
PID 1396 wrote to memory of 2836	1396	file.exe	87
PID 2836 wrote to memory of 3280	2836	cmd.exe	90
PID 2836 wrote to memory of 3280	2836	cmd.exe	90
PID 2836 wrote to memory of 3280	2836	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.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:1396
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\IEBAAFCAFCBK" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2836
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 10
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3280

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1396-0-0x0000000000C60000-0x0000000000EB9000-memory.dmp

Filesize
2.3MB

Download
memory/1396-18-0x0000000000C60000-0x0000000000EB9000-memory.dmp

Filesize
2.3MB

Download