vidar | 6da9ec8ffe3cc51e53b82fc3975ee1b70cb1ac97a58455d4a132576bb82f3095

General

Target
library_2.exe
Size 799KB
Sample221025-nv55cacefp
SHA256 6da9ec8ffe3cc51e53b82fc3975ee1b70cb1ac97a58455d4a132576bb82f3095
MD5 4e1dd342a5aa001f893e1426264a632d
SHA1 7534a233fc42ca165b8cf4427d36d123e476c9e2
SHA512 42c554c29ca23d0d5e3614ce86fb4d08e78bea64280dd9a72b14cf973b40086da3ab035be5700ecc6061008a9a9cd2677577ecf15931dc0e5fbe0e564bdcdce0
SSDEEP 24576:m3t6X/z3zAy9Eu94MK/cRgOnmq9g6q9Od:qK/zkY0cOU7m6q9Od
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

vidar 1707 spyware stealer

Malware Config

Extracted

Family

vidar

Version

55.2

Botnet

1707

C2

https://t.me/slivetalks
https://c.im/@xinibin420

Attributes

profile_id
1707

Signatures

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

Loads dropped DLL 3 IoCs

pid	Process
101952	vbc.exe
101952	vbc.exe
101952	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2872 set thread context of 101952	2872	library_2.exe	88

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4716	2872	WerFault.exe	80
102052	2872	WerFault.exe	80

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	vbc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	vbc.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
102348	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
101952	vbc.exe
101952	vbc.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 101952	2872	library_2.exe	88
PID 2872 wrote to memory of 101952	2872	library_2.exe	88
PID 2872 wrote to memory of 101952	2872	library_2.exe	88
PID 2872 wrote to memory of 101952	2872	library_2.exe	88
PID 2872 wrote to memory of 101952	2872	library_2.exe	88
PID 101952 wrote to memory of 102292	101952	vbc.exe	93
PID 101952 wrote to memory of 102292	101952	vbc.exe	93
PID 101952 wrote to memory of 102292	101952	vbc.exe	93
PID 102292 wrote to memory of 102348	102292	cmd.exe	95
PID 102292 wrote to memory of 102348	102292	cmd.exe	95
PID 102292 wrote to memory of 102348	102292	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\library_2.exe
"C:\Users\Admin\AppData\Local\Temp\library_2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2872 -s 376
  2⤵
  - Program crash
  PID:4716
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:101952
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:102292
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 6
      4⤵
      Delays execution with timeout.exe
      PID:102348
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2872 -s 98900
  2⤵
  - Program crash
  PID:102052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2872 -ip 2872
1⤵
PID:3024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2872 -ip 2872
1⤵
PID:101996

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

mozglue.dll

Path C:\ProgramData\mozglue.dll
Size 593KB
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
SSDEEP 12288:BlSyAom/gcRKMdRm4wFkRHuyG4RRGJVDjMk/x21R8gY/r:BKgcRKMdRm4wFkVVDGJVv//x21R8br
MD5 SHA1 SHA512 SSDEEP

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nss3.dll

Path C:\ProgramData\nss3.dll
Size 2.0MB
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
SSDEEP 49152:fECf12gikHlnKGxJRIB+y5nvxnaOSJ3HFNWYrVvE4CQsgzMmQfTU1NrWmy4KoAzh:J7Tf8J1Q+SS5/nr
MD5 SHA1 SHA512 SSDEEP

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sqlite3.dll

Path C:\ProgramData\sqlite3.dll
Size 1.1MB
SHA256 4841020c8bd06b08fde6e44cbe2e2ab33439e1c8368e936ec5b00dc0584f7260
MD5 1f44d4d3087c2b202cf9c90ee9d04b0f
SHA1 106a3ebc9e39ab6ddb3ff987efb6527c956f192d
SHA512 b614c72a3c1ce681ebffa628e29aa50275cc80ca9267380960c5198ea4d0a3f2df6cfb7275491d220bad72f14fc94e6656501e9a061d102fb11e00cfda2beb45
SSDEEP 12288:dxylSMUMifofI9ayCvcZMBiMjCodEMdo8R66tCWko5+jsbFcoYuprzpGSgGSrz:d4AMB3caSZMijBI1CWkoj5auF5gGSrz
MD5 SHA1 SHA512 SSDEEP

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memory/2872-132-0x0000000000400000-0x0000000000597000-memory.dmp

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memory/2872-133-0x0000000000850000-0x00000000008B0000-memory.dmp

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memory/2872-147-0x0000000000400000-0x0000000000597000-memory.dmp

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memory/101952-135-0x0000000000400000-0x000000000045E000-memory.dmp

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memory/101952-141-0x0000000000400000-0x000000000045E000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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