vidar | 2c973057cbbe0d9836f477281a06b51c6ce009c5ac7683f4255743e7d01ca9ca

Analysis

max time kernel
94s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-01-2025 16:43

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General

Target

kw8fwzf055hq2bo1s8mhd43v.exe
Size

9.8MB
MD5

2a7ec240fa5e25c92b2b78c4f1002ea0
SHA1

bca1465b8bafa5fe58d96d4289356d40c3d44155
SHA256

2c973057cbbe0d9836f477281a06b51c6ce009c5ac7683f4255743e7d01ca9ca
SHA512

dba36379cd0532301193b25ffc4c9b74406efc08ca2d2ce0fec06c115abdde2ab0409bfda1f8bf85ce50764a59503ab0d5b1efbbd641b4caec1dde910d220df3
SSDEEP

98304:D2FemCZvjc2SdS7Q+6qfx0Suals9I/f0E7zs/Ym6lQCpR2RJncpl2:6FeppPfxLsQf/7zLzVpWnQ2

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 4928 set thread context of 1540	4928	kw8fwzf055hq2bo1s8mhd43v.exe	99

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	kw8fwzf055hq2bo1s8mhd43v.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BitLockerToGo.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4928 wrote to memory of 1540	4928	kw8fwzf055hq2bo1s8mhd43v.exe	99
PID 4928 wrote to memory of 1540	4928	kw8fwzf055hq2bo1s8mhd43v.exe	99
PID 4928 wrote to memory of 1540	4928	kw8fwzf055hq2bo1s8mhd43v.exe	99
PID 4928 wrote to memory of 1540	4928	kw8fwzf055hq2bo1s8mhd43v.exe	99
PID 4928 wrote to memory of 1540	4928	kw8fwzf055hq2bo1s8mhd43v.exe	99
PID 4928 wrote to memory of 1540	4928	kw8fwzf055hq2bo1s8mhd43v.exe	99
PID 4928 wrote to memory of 1540	4928	kw8fwzf055hq2bo1s8mhd43v.exe	99
PID 4928 wrote to memory of 1540	4928	kw8fwzf055hq2bo1s8mhd43v.exe	99
PID 4928 wrote to memory of 1540	4928	kw8fwzf055hq2bo1s8mhd43v.exe	99
PID 4928 wrote to memory of 1540	4928	kw8fwzf055hq2bo1s8mhd43v.exe	99
PID 4928 wrote to memory of 1540	4928	kw8fwzf055hq2bo1s8mhd43v.exe	99

C:\Users\Admin\AppData\Local\Temp\kw8fwzf055hq2bo1s8mhd43v.exe
"C:\Users\Admin\AppData\Local\Temp\kw8fwzf055hq2bo1s8mhd43v.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4928
- C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
  "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1540

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/1540-0-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/1540-1-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/1540-2-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/1540-9-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download