vidar | 7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210

General

Target

7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe
Size

580KB
MD5

d9cf02c38cce994f0c0dcf4a8054d444
SHA1

7f5cbf7db43f3acc08095c317c85362acd5f8b43
SHA256

7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210
SHA512

140394cfcb4ea65915e885575b6d2bd7795363d8e672d5050b2a480431426acf17914d1f2b5afbb8c70e81827e782efe5c16904cfe5f99ed7047dd8a5a7e1409
SSDEEP

12288:iK/vg3InPBF9dCi++6+cta+3fDF67k/gpl6uROrKw:iKg3IPk+6+ctauOkiAuREp

Score

10^/10

vidar discovery stealer

Malware Config

Extracted

Family

vidar

C2

http://proxy.johnmccrea.com/

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/3184-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3184-1-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3184-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3184-7-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3184-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3184-18-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3184-19-0x0000000000400000-0x0000000000676000-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 1476 set thread context of 3184	1476	7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe	85

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	7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.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
3184	MSBuild.exe
3184	MSBuild.exe
3184	MSBuild.exe
3184	MSBuild.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1476 wrote to memory of 980	1476	7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe	84
PID 1476 wrote to memory of 980	1476	7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe	84
PID 1476 wrote to memory of 980	1476	7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe	84
PID 1476 wrote to memory of 3184	1476	7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe	85
PID 1476 wrote to memory of 3184	1476	7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe	85
PID 1476 wrote to memory of 3184	1476	7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe	85
PID 1476 wrote to memory of 3184	1476	7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe	85
PID 1476 wrote to memory of 3184	1476	7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe	85
PID 1476 wrote to memory of 3184	1476	7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe	85
PID 1476 wrote to memory of 3184	1476	7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe	85
PID 1476 wrote to memory of 3184	1476	7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe	85
PID 1476 wrote to memory of 3184	1476	7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe	85
PID 1476 wrote to memory of 3184	1476	7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe	85

C:\Users\Admin\AppData\Local\Temp\7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe
"C:\Users\Admin\AppData\Local\Temp\7f58110a24967742d030618fb30ec3e3a99180f4226e2a597d980b4bf5307210.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1476
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:980
- 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:3184

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/1476-0-0x0000000000BFC000-0x0000000000BFE000-memory.dmp

Filesize
8KB

Download
memory/3184-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3184-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3184-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3184-7-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3184-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3184-10-0x000000001D9C0000-0x000000001DC1F000-memory.dmp

Filesize
2.4MB

Download
memory/3184-18-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3184-19-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download

Analysis

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