vidar | 97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0

General

Target

97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0.exe
Size

571KB
MD5

ea032d9278141463cb1aaf533b471aee
SHA1

27e519e9e44219aeafeed5ab66cc2c82ef1ce031
SHA256

97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0
SHA512

2839065a5cbcefec2d2b6f9233982601c5f01e22216d34a674925ebb1c4d56fbc22d455b094913db3ed24f773489cd668caaa0707cbcf00476ca65e5358636bf
SSDEEP

12288:TcEcpXoWDMa779ECxVxdlMvnYuqbzh45flvHMOLY4S:TOXomBNNLgYuq54ZBHMQ5

Score

10^/10

vidar discovery stealer

Malware Config

Extracted

Family

vidar

C2

http://lade.petperfectcare.com:80

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

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/3156-1-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3156-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3156-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3156-7-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3156-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3156-18-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3156-19-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4872 set thread context of 3156	4872	97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0.exe	82

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1432	4872	WerFault.exe	81

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	97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0.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
3156	MSBuild.exe
3156	MSBuild.exe
3156	MSBuild.exe
3156	MSBuild.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4872 wrote to memory of 3156	4872	97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0.exe	82
PID 4872 wrote to memory of 3156	4872	97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0.exe	82
PID 4872 wrote to memory of 3156	4872	97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0.exe	82
PID 4872 wrote to memory of 3156	4872	97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0.exe	82
PID 4872 wrote to memory of 3156	4872	97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0.exe	82
PID 4872 wrote to memory of 3156	4872	97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0.exe	82
PID 4872 wrote to memory of 3156	4872	97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0.exe	82
PID 4872 wrote to memory of 3156	4872	97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0.exe	82
PID 4872 wrote to memory of 3156	4872	97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0.exe	82
PID 4872 wrote to memory of 3156	4872	97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0.exe	82

C:\Users\Admin\AppData\Local\Temp\97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0.exe
"C:\Users\Admin\AppData\Local\Temp\97596ac4b0b3d839d53b03d9217c7628c977365b49e2f2f3f733441bb02556e0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4872
- 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:3156
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 260
  2⤵
  - Program crash
  PID:1432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4872 -ip 4872
1⤵
PID:3836

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

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Downloads

memory/3156-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3156-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3156-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3156-7-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3156-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3156-18-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3156-10-0x000000001D860000-0x000000001DABF000-memory.dmp

Filesize
2.4MB

Download
memory/3156-19-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4872-0-0x0000000000EFD000-0x0000000000EFF000-memory.dmp

Filesize
8KB

Download

Analysis

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