vidar | 2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375

General

Target

2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe
Size

559KB
MD5

ab42cac4652c80d4884a0647e191fb9b
SHA1

397ccfc27b441e39cdfe1003723cc5bda338162f
SHA256

2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375
SHA512

6b8259b78449e5f5d48fcf5bd1aef04a2de46908127a3ab7aa642aa124f2f1e7290349cdadb1549134cb65a845ae81d43241d20d0a159ba731fa7798e97da03a
SSDEEP

12288:PFdmQisJRpSFxTMiLRNdLomAUt36Fo2vSehEzbiUpQP2EO:z7RoD7RbLAUZ2QG2t

Score

10^/10

vidar credential_access discovery spyware 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 16 IoCs

stealer

resource	yara_rule
behavioral1/memory/2780-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2780-10-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2780-13-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2780-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2780-5-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2780-4-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2780-14-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2780-15-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2780-28-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2780-29-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2780-58-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2780-59-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2780-66-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2780-67-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2780-68-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2780-70-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
2780	MSBuild.exe
2780	MSBuild.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 1 IoCs

description	pid	Process	procid_target
PID 2720 set thread context of 2780	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	30

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2724	2720	WerFault.exe	29

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	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.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	MSBuild.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	MSBuild.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1976	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2780	MSBuild.exe
2780	MSBuild.exe
2780	MSBuild.exe
2780	MSBuild.exe
2780	MSBuild.exe
2780	MSBuild.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 2780	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	30
PID 2720 wrote to memory of 2780	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	30
PID 2720 wrote to memory of 2780	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	30
PID 2720 wrote to memory of 2780	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	30
PID 2720 wrote to memory of 2780	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	30
PID 2720 wrote to memory of 2780	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	30
PID 2720 wrote to memory of 2780	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	30
PID 2720 wrote to memory of 2780	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	30
PID 2720 wrote to memory of 2780	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	30
PID 2720 wrote to memory of 2780	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	30
PID 2720 wrote to memory of 2780	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	30
PID 2720 wrote to memory of 2724	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	31
PID 2720 wrote to memory of 2724	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	31
PID 2720 wrote to memory of 2724	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	31
PID 2720 wrote to memory of 2724	2720	2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe	31
PID 2780 wrote to memory of 2820	2780	MSBuild.exe	34
PID 2780 wrote to memory of 2820	2780	MSBuild.exe	34
PID 2780 wrote to memory of 2820	2780	MSBuild.exe	34
PID 2780 wrote to memory of 2820	2780	MSBuild.exe	34
PID 2820 wrote to memory of 1976	2820	cmd.exe	36
PID 2820 wrote to memory of 1976	2820	cmd.exe	36
PID 2820 wrote to memory of 1976	2820	cmd.exe	36
PID 2820 wrote to memory of 1976	2820	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe
"C:\Users\Admin\AppData\Local\Temp\2ffef01bdc9bae49a79e618e8300421e0bb8aa08b2d0c81fbea2b76d12c49375.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2780
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\BAECFHJEBAAF" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2820
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:1976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2720 -s 92
  2⤵
  - Program crash
  PID:2724

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

\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/2720-0-0x00000000013E8000-0x00000000013EA000-memory.dmp

Filesize
8KB

Download
memory/2780-15-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-28-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-10-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-13-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-5-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-4-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-2-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-14-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-18-0x000000001B740000-0x000000001B99F000-memory.dmp

Filesize
2.4MB

Download
memory/2780-7-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2780-29-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-58-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-59-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-66-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-67-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-69-0x0000000000CA0000-0x0000000000CA1000-memory.dmp

Filesize
4KB

Download
memory/2780-68-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2780-70-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download

Analysis

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