vidar | 610405206f96bddcd27807b4bd21b14307bba9edd0fecd9cb70e947f10f83b05

Analysis

max time kernel
95s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-01-2025 18:19

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General

Target

YnSBCqZ.exe
Size

8.1MB
MD5

7a58b56b7f6c48e110f9ed84d25f0286
SHA1

73bbfca9d18b9eeb933f36fc2ba37bf48dfcddb4
SHA256

610405206f96bddcd27807b4bd21b14307bba9edd0fecd9cb70e947f10f83b05
SHA512

5ffd74a253854e8c8e6254f79eb123aa7b730631aea846389261d00faadc2a66dadf037d26902bedb1f0449e6955c38ff4911d850e13e3f68117459cd3247e9b
SSDEEP

98304:dhFvAJyeCllfUonZRljtdRHDhbNhVvF8Dtg5t+7bxQ9AH:HmjoZRlRHTP9x9AH

Score

10^/10

vidar fc0stn discovery stealer

Malware Config

Extracted

Family

vidar

Botnet

fc0stn

https://t.me/w0ctzn

https://steamcommunity.com/profiles/76561199817305251

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:131.0) Gecko/20100101 Firefox/131.0

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Vidar family
vidar

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3228 set thread context of 2512	3228	YnSBCqZ.exe	90

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	YnSBCqZ.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BitLockerToGo.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3228 wrote to memory of 2512	3228	YnSBCqZ.exe	90
PID 3228 wrote to memory of 2512	3228	YnSBCqZ.exe	90
PID 3228 wrote to memory of 2512	3228	YnSBCqZ.exe	90
PID 3228 wrote to memory of 2512	3228	YnSBCqZ.exe	90
PID 3228 wrote to memory of 2512	3228	YnSBCqZ.exe	90
PID 3228 wrote to memory of 2512	3228	YnSBCqZ.exe	90
PID 3228 wrote to memory of 2512	3228	YnSBCqZ.exe	90
PID 3228 wrote to memory of 2512	3228	YnSBCqZ.exe	90
PID 3228 wrote to memory of 2512	3228	YnSBCqZ.exe	90
PID 3228 wrote to memory of 2512	3228	YnSBCqZ.exe	90
PID 3228 wrote to memory of 2512	3228	YnSBCqZ.exe	90

C:\Users\Admin\AppData\Local\Temp\YnSBCqZ.exe
"C:\Users\Admin\AppData\Local\Temp\YnSBCqZ.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3228
- C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
  "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2512

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

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Downloads

memory/2512-0-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2512-1-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2512-2-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2512-9-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download