vidar | 6855feaad22b9fab33f782a030dca8efeceb300eb547e0a9ce5cb36520f1bddc

General

Target

8fd06cfe41c9aa5a7b58488d0bc2bd18.exe
Size

598KB
MD5

8fd06cfe41c9aa5a7b58488d0bc2bd18
SHA1

915937f169d3dc5fe918435e81f645074304cf9c
SHA256

6855feaad22b9fab33f782a030dca8efeceb300eb547e0a9ce5cb36520f1bddc
SHA512

57f51f7a42108d41f4583fec480d35e634b5d228c49adee24d1c21e0a01142f8edd2781ff8a1168e8350e7d988da2eaf3e0fd53b6a1a5aac891225d2a4e5ab3b
SSDEEP

12288:VUqvMSDFMq2q0KOfCy2PD4OCB7lR4Cdxd/8eWS64fLETEO:VU8HDFFOayc1CB7laCtS+mt

Score

10^/10

vidar 8ecc9c7eaebfdf2a8cc0586d7419d6ea discovery stealer

Malware Config

Extracted

Family

vidar

Botnet

8ecc9c7eaebfdf2a8cc0586d7419d6ea

C2

https://t.me/maslengdsa

https://steamcommunity.com/profiles/76561199786602107

https://t.me/lpnjoke

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Signatures

Detect Vidar Stealer 7 IoCs

stealer

resource	yara_rule
behavioral2/memory/324-1-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/324-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/324-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/324-7-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/324-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/324-18-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/324-19-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3776 set thread context of 324	3776	8fd06cfe41c9aa5a7b58488d0bc2bd18.exe	85

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3180	3776	WerFault.exe	83

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	8fd06cfe41c9aa5a7b58488d0bc2bd18.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.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	MSBuild.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
324	MSBuild.exe
324	MSBuild.exe
324	MSBuild.exe
324	MSBuild.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3776 wrote to memory of 324	3776	8fd06cfe41c9aa5a7b58488d0bc2bd18.exe	85
PID 3776 wrote to memory of 324	3776	8fd06cfe41c9aa5a7b58488d0bc2bd18.exe	85
PID 3776 wrote to memory of 324	3776	8fd06cfe41c9aa5a7b58488d0bc2bd18.exe	85
PID 3776 wrote to memory of 324	3776	8fd06cfe41c9aa5a7b58488d0bc2bd18.exe	85
PID 3776 wrote to memory of 324	3776	8fd06cfe41c9aa5a7b58488d0bc2bd18.exe	85
PID 3776 wrote to memory of 324	3776	8fd06cfe41c9aa5a7b58488d0bc2bd18.exe	85
PID 3776 wrote to memory of 324	3776	8fd06cfe41c9aa5a7b58488d0bc2bd18.exe	85
PID 3776 wrote to memory of 324	3776	8fd06cfe41c9aa5a7b58488d0bc2bd18.exe	85
PID 3776 wrote to memory of 324	3776	8fd06cfe41c9aa5a7b58488d0bc2bd18.exe	85
PID 3776 wrote to memory of 324	3776	8fd06cfe41c9aa5a7b58488d0bc2bd18.exe	85

C:\Users\Admin\AppData\Local\Temp\8fd06cfe41c9aa5a7b58488d0bc2bd18.exe
"C:\Users\Admin\AppData\Local\Temp\8fd06cfe41c9aa5a7b58488d0bc2bd18.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3776
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:324
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3776 -s 292
  2⤵
  - Program crash
  PID:3180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3776 -ip 3776
1⤵
PID:208

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/324-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/324-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/324-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/324-7-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/324-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/324-10-0x00000000221F0000-0x000000002244F000-memory.dmp

Filesize
2.4MB

Download
memory/324-18-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/324-19-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3776-0-0x00000000009CF000-0x00000000009D1000-memory.dmp

Filesize
8KB

Download

Analysis

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