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Analysis

  • max time kernel
    219s
  • max time network
    224s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01/11/2022, 10:40

General

  • Target

    a6bfac7006b2abd59450fbb255f7012a542095cc7367db0e0100c33e0a62c9e7.exe

  • Size

    2.8MB

  • MD5

    584f061ba8fe5d0eddcf3b68146763e2

  • SHA1

    b60461bd014a2105398bcdd18a47c0befce48dc0

  • SHA256

    a6bfac7006b2abd59450fbb255f7012a542095cc7367db0e0100c33e0a62c9e7

  • SHA512

    f451e66f76543d9621b33099ecca31f6e201bb1bdf6009596316f7b32a5fa3bf8f7408d4b2e2d8bd4f2eae93b3b9295c97ae3fcaef7314b8c39ac4c641c7212b

  • SSDEEP

    49152:78hmk3ryQy9TN/bYhM1Z/ZAkzdzYFwLeUeuXl3Q:78hmk3ryQolryFwLeJT

Malware Config

Extracted

Family

vidar

Version

55.1

Botnet

1375

C2

https://t.me/tg_privatetalk

https://nerdculture.de/@yixehi33

http://195.201.252.190:80

Attributes
  • profile_id

    1375

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Loads dropped DLL 2 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a6bfac7006b2abd59450fbb255f7012a542095cc7367db0e0100c33e0a62c9e7.exe
    "C:\Users\Admin\AppData\Local\Temp\a6bfac7006b2abd59450fbb255f7012a542095cc7367db0e0100c33e0a62c9e7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1336
    • 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:98368
      • 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:98852
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 6
          4⤵
          • Delays execution with timeout.exe
          PID:98888

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/98368-56-0x0000000000400000-0x0000000000469000-memory.dmp

    Filesize

    420KB

  • memory/98368-54-0x0000000000400000-0x0000000000469000-memory.dmp

    Filesize

    420KB

  • memory/98368-63-0x0000000000400000-0x0000000000469000-memory.dmp

    Filesize

    420KB

  • memory/98368-64-0x00000000762D1000-0x00000000762D3000-memory.dmp

    Filesize

    8KB

  • memory/98368-65-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB