Analysis

  • max time kernel
    148s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 09:15

General

  • Target

    vida.exe

  • Size

    1.1MB

  • MD5

    a02b7f83447a828d6b26ee2eaa9d338d

  • SHA1

    e4351940f9796e5f3a39cbbc38d8857f70bb95b2

  • SHA256

    faf9fafa302622d32b46956c7ff81da78773366c0e120936a61ceea4c489c5b8

  • SHA512

    8796113e4471c4bd59bccd7a544ea97e5d5195ab5a94eb0257cac28e9c567f17d67ea86f2e840621291a881cf35027e2dced7e62fdccd7cb6f3fbc3fcf2193cb

  • SSDEEP

    12288:k+A8i6HbM3g4iVVDI05MuS5Q2EqQaRDPNoXfNes5cpAvYgD5xs7PyNnBni:PE6HY3grr2E6Z1KlVewD5xQyNBi

Malware Config

Extracted

Family

vidar

Version

55.8

Botnet

1202

C2

https://t.me/headshotsonly

https://steamcommunity.com/profiles/76561199436777531

Attributes
  • profile_id

    1202

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 IoCs
  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\vida.exe
    "C:\Users\Admin\AppData\Local\Temp\vida.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:928
    • C:\Windows\SysWOW64\mstsc.exe
      "C:\Windows\sysWOW64\mstsc.exe"
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4180
      • C:\ProgramData\93634816074715265632.exe
        "C:\ProgramData\93634816074715265632.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:4696
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /C schtasks /create /tn eWnswambfo /tr C:\Users\Admin\AppData\Roaming\eWnswambfo\GxDvSBcXEn.exe /st 00:00 /du 9999:59 /sc once /ri 1 /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1664
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn eWnswambfo /tr C:\Users\Admin\AppData\Roaming\eWnswambfo\GxDvSBcXEn.exe /st 00:00 /du 9999:59 /sc once /ri 1 /f
            5⤵
            • Creates scheduled task(s)
            PID:3984
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Windows\SysWOW64\mstsc.exe" & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4252
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 6
          4⤵
          • Delays execution with timeout.exe
          PID:4280
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Sleep -Seconds 30; Remove-Item -Path 'C:\Users\Admin\AppData\Local\Temp\vida.exe' -Force;exit
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1920

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\93634816074715265632.exe

    Filesize

    4.8MB

    MD5

    f1f3fd9eca3040df168ecd3833b31ac1

    SHA1

    a5478f615934f65d89adee181a71c08fa513756b

    SHA256

    fb0627d7bbf0d72bd24fcbff908f99dc4271375ccecaf1023381a42afb4e57ec

    SHA512

    7428e037e4478bfd2cd9f37d8fa93d83e1cdd7b13087441f2a0acef558c26e94b0350e8f2167df9c5d247e5522cc5d0de1a59f39e7f3bcf893559b4e9a749bed

  • C:\ProgramData\93634816074715265632.exe

    Filesize

    4.8MB

    MD5

    f1f3fd9eca3040df168ecd3833b31ac1

    SHA1

    a5478f615934f65d89adee181a71c08fa513756b

    SHA256

    fb0627d7bbf0d72bd24fcbff908f99dc4271375ccecaf1023381a42afb4e57ec

    SHA512

    7428e037e4478bfd2cd9f37d8fa93d83e1cdd7b13087441f2a0acef558c26e94b0350e8f2167df9c5d247e5522cc5d0de1a59f39e7f3bcf893559b4e9a749bed

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/928-134-0x0000000077380000-0x0000000077523000-memory.dmp

    Filesize

    1.6MB

  • memory/928-133-0x0000000077380000-0x0000000077523000-memory.dmp

    Filesize

    1.6MB

  • memory/928-138-0x0000000077380000-0x0000000077523000-memory.dmp

    Filesize

    1.6MB

  • memory/1664-178-0x0000000000000000-mapping.dmp

  • memory/1920-182-0x0000000006180000-0x000000000619A000-memory.dmp

    Filesize

    104KB

  • memory/1920-175-0x0000000004A00000-0x0000000004A22000-memory.dmp

    Filesize

    136KB

  • memory/1920-160-0x0000000004690000-0x00000000046C6000-memory.dmp

    Filesize

    216KB

  • memory/1920-180-0x0000000005C40000-0x0000000005C5E000-memory.dmp

    Filesize

    120KB

  • memory/1920-163-0x0000000004DD0000-0x00000000053F8000-memory.dmp

    Filesize

    6.2MB

  • memory/1920-137-0x0000000000000000-mapping.dmp

  • memory/1920-177-0x0000000005660000-0x00000000056C6000-memory.dmp

    Filesize

    408KB

  • memory/1920-181-0x0000000007360000-0x00000000079DA000-memory.dmp

    Filesize

    6.5MB

  • memory/1920-176-0x00000000055F0000-0x0000000005656000-memory.dmp

    Filesize

    408KB

  • memory/3984-179-0x0000000000000000-mapping.dmp

  • memory/4180-136-0x0000000000840000-0x00000000008A0000-memory.dmp

    Filesize

    384KB

  • memory/4180-159-0x0000000000840000-0x00000000008A0000-memory.dmp

    Filesize

    384KB

  • memory/4180-170-0x0000000000840000-0x00000000008A0000-memory.dmp

    Filesize

    384KB

  • memory/4180-135-0x0000000000000000-mapping.dmp

  • memory/4180-139-0x00000000505F0000-0x00000000506E3000-memory.dmp

    Filesize

    972KB

  • memory/4252-166-0x0000000000000000-mapping.dmp

  • memory/4280-174-0x0000000000000000-mapping.dmp

  • memory/4696-165-0x0000000001230000-0x00000000016FB000-memory.dmp

    Filesize

    4.8MB

  • memory/4696-161-0x0000000000000000-mapping.dmp