vidar | f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350

General

Target

f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350.exe
Size

580KB
MD5

5b7f1ef73d64e3bd6b28f5afbf0130e1
SHA1

96f329fa1ab70dfa0f6944e4ce5f742bc9be6ba7
SHA256

f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350
SHA512

fe524a671232ca4b8929f8017a02e4c812c1dbe303696ac3d3f6ac93661b7d7a28159e567d2f70a69239ab8e9bd06bd8fd65ec9385862a617eb64ed35196120a
SSDEEP

12288:rK7qQnYbvtHe/SuvGppmzclJGT5bmZxuOjex1rFD9ZE5x0f8frKa:rKtnYjvuuqzcls9mfLjextFpZE5xM8Dr

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 9 IoCs

stealer

resource	yara_rule
behavioral2/memory/4452-1-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4452-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4452-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4452-7-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4452-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4452-9-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4452-19-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4452-27-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4452-28-0x0000000000400000-0x0000000000676000-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 5072 set thread context of 4452	5072	f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350.exe	83

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

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	f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350.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
4452	MSBuild.exe
4452	MSBuild.exe
4452	MSBuild.exe
4452	MSBuild.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5072 wrote to memory of 4452	5072	f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350.exe	83
PID 5072 wrote to memory of 4452	5072	f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350.exe	83
PID 5072 wrote to memory of 4452	5072	f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350.exe	83
PID 5072 wrote to memory of 4452	5072	f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350.exe	83
PID 5072 wrote to memory of 4452	5072	f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350.exe	83
PID 5072 wrote to memory of 4452	5072	f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350.exe	83
PID 5072 wrote to memory of 4452	5072	f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350.exe	83
PID 5072 wrote to memory of 4452	5072	f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350.exe	83
PID 5072 wrote to memory of 4452	5072	f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350.exe	83
PID 5072 wrote to memory of 4452	5072	f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350.exe	83

C:\Users\Admin\AppData\Local\Temp\f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350.exe
"C:\Users\Admin\AppData\Local\Temp\f655c42917dd0c1287bcf47561c4200cb79c6240f41492f675093077d7a2e350.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5072
- 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:4452

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

Query Registry

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/4452-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4452-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4452-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4452-7-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4452-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4452-9-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4452-11-0x0000000020230000-0x000000002048F000-memory.dmp

Filesize
2.4MB

Download
memory/4452-19-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4452-27-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4452-28-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/5072-0-0x000000000028C000-0x000000000028E000-memory.dmp

Filesize
8KB

Download

Analysis

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