vidar | 669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c

General

Target

669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c.exe
Size

571KB
MD5

67bde3658a9ffcf47a6103eb6df9c660
SHA1

f527e481e7644a0d4b31af37d34226ccd8621ce8
SHA256

669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c
SHA512

5ec51c39d9f652d3c2e719ed0b4f8ccb39c05b197b9a4fb7bb772743ea7fcffca5ac6ca4966341e012eeddfe12a3104743dbe5849c1c7cdd73001129648177da
SSDEEP

12288:sGWivJ6LrcfSvaiNxA6fl95WCtobUz0Gcj/a4Sl:smJ6RvaMN++0GcL7O

Score

10^/10

vidar 04a7a73c13ab56b51bd29415d6338a92 discovery stealer

Malware Config

Extracted

Family

vidar

Version

11

Botnet

04a7a73c13ab56b51bd29415d6338a92

C2

https://t.me/maslengdsa

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 8 IoCs

stealer

resource	yara_rule
behavioral2/memory/212-1-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/212-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/212-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/212-16-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/212-17-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/212-18-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/212-28-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/212-29-0x0000000000400000-0x0000000000676000-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 2124 set thread context of 212	2124	669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c.exe	84

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4076	2124	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	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c.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
212	MSBuild.exe
212	MSBuild.exe
212	MSBuild.exe
212	MSBuild.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 212	2124	669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c.exe	84
PID 2124 wrote to memory of 212	2124	669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c.exe	84
PID 2124 wrote to memory of 212	2124	669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c.exe	84
PID 2124 wrote to memory of 212	2124	669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c.exe	84
PID 2124 wrote to memory of 212	2124	669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c.exe	84
PID 2124 wrote to memory of 212	2124	669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c.exe	84
PID 2124 wrote to memory of 212	2124	669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c.exe	84
PID 2124 wrote to memory of 212	2124	669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c.exe	84
PID 2124 wrote to memory of 212	2124	669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c.exe	84
PID 2124 wrote to memory of 212	2124	669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c.exe	84

C:\Users\Admin\AppData\Local\Temp\669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c.exe
"C:\Users\Admin\AppData\Local\Temp\669520f903f4178a0b5365327369eab98a3e595dddcf1164324beeae8fca8b0c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- 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:212
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2124 -s 252
  2⤵
  - Program crash
  PID:4076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2124 -ip 2124
1⤵
PID:3048

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/212-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/212-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/212-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/212-16-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/212-17-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/212-18-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/212-20-0x00000000034D0000-0x000000000372F000-memory.dmp

Filesize
2.4MB

Download
memory/212-28-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/212-29-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2124-0-0x00000000003ED000-0x00000000003EF000-memory.dmp

Filesize
8KB

Download

Analysis

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