vidar | c136cc4b86cb9fcba40a5a0f9d0a33f5dfdb47b79ccd485e8366d90af029af10

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
26-01-2025 13:12

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General

Target

random.exe
Size

345KB
MD5

b4b23395474eed4df3b8113d90fdf3f0
SHA1

25399a100848cdfc995b59bee8fec5d27b451bc6
SHA256

c136cc4b86cb9fcba40a5a0f9d0a33f5dfdb47b79ccd485e8366d90af029af10
SHA512

6e968a1910ce0c8542a3cd0e6715906b4a2f5bced3a90ab7e4e68478e8aec4bfc6435cc1db527bac5f262096476c3b971601b182ada09a7afdd37baf902ce659
SSDEEP

6144:Ee7/cRR+JQ8mjAnN3yf8Hwjq4LQvwKnNGBf5UkNEH9IuyyrYJu:EY6R+JQXjAnN3ykQO4L14Y6wmOnyrYJ

Score

10^/10

vidar discovery stealer

Malware Config

Extracted

Family

vidar

https://t.me/sc1phell

https://steamcommunity.com/profiles/76561199819539662

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0

Signatures

Detect Vidar Stealer 5 IoCs

stealer

resource	yara_rule
behavioral2/memory/2788-5-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7
behavioral2/memory/2788-4-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7
behavioral2/memory/2788-6-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7
behavioral2/memory/2788-8-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7
behavioral2/memory/2788-15-0x0000000000400000-0x0000000000422000-memory.dmp	family_vidar_v7

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 1656 set thread context of 2788	1656	random.exe	81

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3452	1656	WerFault.exe	80

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

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 2788	1656	random.exe	81
PID 1656 wrote to memory of 2788	1656	random.exe	81
PID 1656 wrote to memory of 2788	1656	random.exe	81
PID 1656 wrote to memory of 2788	1656	random.exe	81
PID 1656 wrote to memory of 2788	1656	random.exe	81
PID 1656 wrote to memory of 2788	1656	random.exe	81
PID 1656 wrote to memory of 2788	1656	random.exe	81
PID 1656 wrote to memory of 2788	1656	random.exe	81
PID 1656 wrote to memory of 2788	1656	random.exe	81
PID 1656 wrote to memory of 2788	1656	random.exe	81
PID 1656 wrote to memory of 2788	1656	random.exe	81

C:\Users\Admin\AppData\Local\Temp\random.exe
"C:\Users\Admin\AppData\Local\Temp\random.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Users\Admin\AppData\Local\Temp\random.exe
  "C:\Users\Admin\AppData\Local\Temp\random.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 816
  2⤵
  - Program crash
  PID:3452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1656 -ip 1656
1⤵
PID:2640

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/1656-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/1656-1-0x0000000000BD0000-0x0000000000C2E000-memory.dmp

Filesize
376KB

Download
memory/1656-2-0x00000000059F0000-0x0000000005F94000-memory.dmp

Filesize
5.6MB

Download
memory/1656-7-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/2788-5-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2788-4-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2788-6-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2788-8-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2788-15-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download