Resubmissions

02/12/2022, 04:06

221202-en6ymacb27 10

29/11/2022, 08:17

221129-j625lsbf28 10

28/11/2022, 08:49

221128-krf49sah64 10

24/11/2022, 09:42

221124-lpgtfshe6t 10

Analysis

  • max time kernel
    280s
  • max time network
    308s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2022, 09:42

General

  • Target

    Setup.exe

  • Size

    402.5MB

  • MD5

    067d3c879130afc47174ba47b13e43ac

  • SHA1

    7a904662e1b30d84ef00011d5b5fb41eda3d338e

  • SHA256

    6f82b1cf599c76bc579116a448fc4140b73074593fde03ac4848b55e63486eaf

  • SHA512

    663b0744020e5ef0e8e5f327e98471df6225153e2dadc02eb602461332d462cf1c00189c9179ccd4024b1138dd4cd984f2a43ab81ea4f2db889f9913c8fc34c8

  • SSDEEP

    98304:SdJ+IoM2/A0pVUyCl4wG5VAc8UqsCOyS87SSstVC3aV:SdgIH2/A0pVBEcNQS87SX0aV

Malware Config

Extracted

Family

vidar

Version

55.8

Botnet

1364

C2

https://t.me/headshotsonly

https://steamcommunity.com/profiles/76561199436777531

Attributes
  • profile_id

    1364

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks computer location settings
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:664
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\Setup.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5068
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 6
        3⤵
        • Delays execution with timeout.exe
        PID:4552

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • 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/664-137-0x0000000000400000-0x0000000000E4E000-memory.dmp

    Filesize

    10.3MB

  • memory/664-142-0x0000000000400000-0x0000000000E4E000-memory.dmp

    Filesize

    10.3MB

  • memory/664-132-0x0000000000400000-0x0000000000E4E000-memory.dmp

    Filesize

    10.3MB

  • memory/664-138-0x0000000000400000-0x0000000000E4E000-memory.dmp

    Filesize

    10.3MB

  • memory/664-139-0x0000000077110000-0x00000000772B3000-memory.dmp

    Filesize

    1.6MB

  • memory/664-140-0x0000000000400000-0x0000000000E4E000-memory.dmp

    Filesize

    10.3MB

  • memory/664-141-0x0000000077110000-0x00000000772B3000-memory.dmp

    Filesize

    1.6MB

  • memory/664-136-0x0000000000400000-0x0000000000E4E000-memory.dmp

    Filesize

    10.3MB

  • memory/664-143-0x0000000050FE0000-0x00000000510D3000-memory.dmp

    Filesize

    972KB

  • memory/664-135-0x0000000000400000-0x0000000000E4E000-memory.dmp

    Filesize

    10.3MB

  • memory/664-133-0x0000000000400000-0x0000000000E4E000-memory.dmp

    Filesize

    10.3MB

  • memory/664-166-0x0000000077110000-0x00000000772B3000-memory.dmp

    Filesize

    1.6MB

  • memory/664-165-0x0000000000400000-0x0000000000E4E000-memory.dmp

    Filesize

    10.3MB