vidar | aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede

General

Target

aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe
Size

244KB
MD5

94d71d66415166e8ca9d01f0de2f6422
SHA1

c5dc1afe7fede3032b2cd376f0e9ed5a36fd5c5f
SHA256

aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede
SHA512

11acbbc531a489486a3cb5fdfed5fe2d89fac12337a88bef0004548ad34875e91448010ab28d918bfc7184d11e654607d4903738c04aae3b7f0124d0f3feec41
SSDEEP

3072:YsAeBz6deFpZ1ef943/mvHk0wp03I0xps+Ca+zkOJ7UI7eTlFZ38e39mXJbac0jo:wT6Z1BmvZ20BaTXUzTPpkZbZ0j01

Score

10^/10

vidar stealer

Malware Config

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199658817715

https://t.me/sa9ok

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Signatures

Detect Vidar Stealer 6 IoCs

stealer

resource	yara_rule
behavioral1/memory/2540-19-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2540-17-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2540-13-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2540-10-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2540-9-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2540-8-0x0000000000400000-0x0000000000648000-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 2528 set thread context of 2540	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	29

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1748	2528	WerFault.exe	27
2896	2540	WerFault.exe	29

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	RegAsm.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 1748	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	30
PID 2528 wrote to memory of 1748	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	30
PID 2528 wrote to memory of 1748	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	30
PID 2528 wrote to memory of 1748	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	30
PID 2528 wrote to memory of 2540	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	29
PID 2528 wrote to memory of 2540	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	29
PID 2528 wrote to memory of 2540	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	29
PID 2528 wrote to memory of 2540	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	29
PID 2528 wrote to memory of 2540	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	29
PID 2528 wrote to memory of 2540	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	29
PID 2528 wrote to memory of 2540	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	29
PID 2528 wrote to memory of 2540	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	29
PID 2528 wrote to memory of 2540	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	29
PID 2528 wrote to memory of 2540	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	29
PID 2528 wrote to memory of 2540	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	29
PID 2528 wrote to memory of 2540	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	29
PID 2528 wrote to memory of 2540	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	29
PID 2528 wrote to memory of 2540	2528	aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe	29
PID 2540 wrote to memory of 2896	2540	RegAsm.exe	33
PID 2540 wrote to memory of 2896	2540	RegAsm.exe	33
PID 2540 wrote to memory of 2896	2540	RegAsm.exe	33
PID 2540 wrote to memory of 2896	2540	RegAsm.exe	33

C:\Users\Admin\AppData\Local\Temp\aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe
"C:\Users\Admin\AppData\Local\Temp\aff0f558c434e6f1926e5702d858dc4a33997ef37fc42b4121c167a0f2e94ede.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Modifies system certificate store
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2540 -s 1432
    3⤵
    - Program crash
    PID:2896
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 552
  2⤵
  - Program crash
  PID:1748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar3193.tmp

Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
memory/2528-0-0x0000000000AE0000-0x0000000000B1E000-memory.dmp

Filesize
248KB

Download
memory/2528-1-0x00000000745A0000-0x0000000074C8E000-memory.dmp

Filesize
6.9MB

Download
memory/2528-59-0x0000000002220000-0x0000000004220000-memory.dmp

Filesize
32.0MB

Download
memory/2528-58-0x00000000745A0000-0x0000000074C8E000-memory.dmp

Filesize
6.9MB

Download
memory/2528-14-0x0000000002220000-0x0000000004220000-memory.dmp

Filesize
32.0MB

Download
memory/2540-10-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2540-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2540-9-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2540-8-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2540-6-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2540-5-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2540-13-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2540-17-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2540-19-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2540-7-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing