vidar | b48eeab60494eb44d8d5ef10a87fd46ad1aa33fdcf7245efb636f69f2fd55f42

General

Target

f275736a38a6b90825076e8d786ad5c5.exe
Size

594KB
MD5

f275736a38a6b90825076e8d786ad5c5
SHA1

c0d862ceab728736580f043316cdc099b2ab8924
SHA256

b48eeab60494eb44d8d5ef10a87fd46ad1aa33fdcf7245efb636f69f2fd55f42
SHA512

b6662ee0426b45c5629808718613a687808deeaca692bb00d26ac5c9098b8a36a126ef80eca470db085aa5a84e38a9ee088a165cea821bf1226055a4fd842711
SSDEEP

12288:Z23Df42FsPVesttHjpBKBmtvoYTjapYQIhtud8FpowFgXRo:Sz4xDTHt/tgYTjJQ0pXowWXR

Score

10^/10

vidar 2ee1445fc63bc20d0e7966867b13e0e1 credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

11

Botnet

2ee1445fc63bc20d0e7966867b13e0e1

C2

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 17 IoCs

stealer

resource	yara_rule
behavioral2/memory/2708-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-11-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-16-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-17-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-26-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-27-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-35-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-36-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-52-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-53-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-77-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-78-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-81-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-86-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-87-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2708-95-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
38	5040	cmd.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
2708	InstallUtil.exe
2708	InstallUtil.exe

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4984 set thread context of 2708	4984	f275736a38a6b90825076e8d786ad5c5.exe	84
PID 2708 set thread context of 5040	2708	InstallUtil.exe	87

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 4 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	InstallUtil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.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	InstallUtil.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	InstallUtil.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2116	timeout.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2708	InstallUtil.exe
2708	InstallUtil.exe
2708	InstallUtil.exe
2708	InstallUtil.exe
2708	InstallUtil.exe
2708	InstallUtil.exe
2708	InstallUtil.exe
2708	InstallUtil.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4984 wrote to memory of 2708	4984	f275736a38a6b90825076e8d786ad5c5.exe	84
PID 4984 wrote to memory of 2708	4984	f275736a38a6b90825076e8d786ad5c5.exe	84
PID 4984 wrote to memory of 2708	4984	f275736a38a6b90825076e8d786ad5c5.exe	84
PID 4984 wrote to memory of 2708	4984	f275736a38a6b90825076e8d786ad5c5.exe	84
PID 4984 wrote to memory of 2708	4984	f275736a38a6b90825076e8d786ad5c5.exe	84
PID 4984 wrote to memory of 2708	4984	f275736a38a6b90825076e8d786ad5c5.exe	84
PID 4984 wrote to memory of 2708	4984	f275736a38a6b90825076e8d786ad5c5.exe	84
PID 4984 wrote to memory of 2708	4984	f275736a38a6b90825076e8d786ad5c5.exe	84
PID 4984 wrote to memory of 2708	4984	f275736a38a6b90825076e8d786ad5c5.exe	84
PID 4984 wrote to memory of 2708	4984	f275736a38a6b90825076e8d786ad5c5.exe	84
PID 2708 wrote to memory of 5040	2708	InstallUtil.exe	87
PID 2708 wrote to memory of 5040	2708	InstallUtil.exe	87
PID 2708 wrote to memory of 5040	2708	InstallUtil.exe	87
PID 2708 wrote to memory of 5040	2708	InstallUtil.exe	87
PID 2708 wrote to memory of 5040	2708	InstallUtil.exe	87
PID 2708 wrote to memory of 5040	2708	InstallUtil.exe	87
PID 2708 wrote to memory of 5040	2708	InstallUtil.exe	87
PID 2708 wrote to memory of 5040	2708	InstallUtil.exe	87
PID 2708 wrote to memory of 5040	2708	InstallUtil.exe	87
PID 2708 wrote to memory of 5040	2708	InstallUtil.exe	87
PID 2708 wrote to memory of 432	2708	InstallUtil.exe	88
PID 2708 wrote to memory of 432	2708	InstallUtil.exe	88
PID 2708 wrote to memory of 432	2708	InstallUtil.exe	88
PID 432 wrote to memory of 2116	432	cmd.exe	90
PID 432 wrote to memory of 2116	432	cmd.exe	90
PID 432 wrote to memory of 2116	432	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\f275736a38a6b90825076e8d786ad5c5.exe
"C:\Users\Admin\AppData\Local\Temp\f275736a38a6b90825076e8d786ad5c5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4984
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2708
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe"
    3⤵
    - Blocklisted process makes network request
    - System Location Discovery: System Language Discovery
    PID:5040
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FHCGHJDBFIID" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:432
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2116

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

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

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/2708-52-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-86-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-53-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-95-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-11-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-16-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-17-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-18-0x0000000020570000-0x00000000207CF000-memory.dmp

Filesize
2.4MB

Download
memory/2708-26-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-27-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-35-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-36-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-87-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-81-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-78-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2708-77-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4984-1-0x00000000001B0000-0x000000000024A000-memory.dmp

Filesize
616KB

Download
memory/4984-2-0x00007FF802EA0000-0x00007FF803961000-memory.dmp

Filesize
10.8MB

Download
memory/4984-61-0x00007FF802EA0000-0x00007FF803961000-memory.dmp

Filesize
10.8MB

Download
memory/4984-4-0x00007FF802EA3000-0x00007FF802EA5000-memory.dmp

Filesize
8KB

Download
memory/4984-3-0x000000001D410000-0x000000001D486000-memory.dmp

Filesize
472KB

Download
memory/4984-5-0x00007FF802EA0000-0x00007FF803961000-memory.dmp

Filesize
10.8MB

Download
memory/4984-0-0x00007FF802EA3000-0x00007FF802EA5000-memory.dmp

Filesize
8KB

Download
memory/5040-96-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/5040-89-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/5040-90-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/5040-91-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/5040-92-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download

Analysis

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