General

  • Target

    VenomRAT-V5.6-HVNC (1).rar

  • Size

    44.7MB

  • Sample

    241222-r3br9a1nbt

  • MD5

    3359e400772b429af1a1c5b2f06ad301

  • SHA1

    bdedb4c410ba58392feefcda17ec18c9ec5e45db

  • SHA256

    b460cb71a7c6a0ef8f1f92dc52c237a41a783fa5d2925362eb0ab3db51420e71

  • SHA512

    63f5c3a773dc4d3ff44aef6b318e1e23c3befecf3a1263f4f45c132c487dae8fe9f0a2512a3699ae70c8b602ca83e672be8b18b0f9be60693c600a70b08f2f4a

  • SSDEEP

    786432:G42E0fcdbuf9QZZEdyvV554KDYKiQ7mKv9Ewf91HZOrck8+xUhJZkwhNc:GbE0fk6FkZEdKV5i2BiQKaEwHHZIAJZK

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

v15.4.1 | Venom

C2

dofucks.com:12482

private115.duckdns.org:12482

Mutex

adf10731-c83d-4166-9137-39d0b1e48856

Attributes
  • encryption_key

    C84CB6134701741C5122A14FACDB67C8CFA9C0AB

  • install_name

    .exe

  • log_directory

    $sxr-Logs

  • reconnect_delay

    3000

  • startup_key

    $sxr-seroxen

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Venom Clients

C2

127.0.0.1:4449

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes
  • delay

    1

  • install

    true

  • install_file

    cocococo.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      VenomRAT-V5.6-HVNC (1).rar

    • Size

      44.7MB

    • MD5

      3359e400772b429af1a1c5b2f06ad301

    • SHA1

      bdedb4c410ba58392feefcda17ec18c9ec5e45db

    • SHA256

      b460cb71a7c6a0ef8f1f92dc52c237a41a783fa5d2925362eb0ab3db51420e71

    • SHA512

      63f5c3a773dc4d3ff44aef6b318e1e23c3befecf3a1263f4f45c132c487dae8fe9f0a2512a3699ae70c8b602ca83e672be8b18b0f9be60693c600a70b08f2f4a

    • SSDEEP

      786432:G42E0fcdbuf9QZZEdyvV554KDYKiQ7mKv9Ewf91HZOrck8+xUhJZkwhNc:GbE0fk6FkZEdKV5i2BiQKaEwHHZIAJZK

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Asyncrat family

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Async RAT payload

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Indicator Removal: Clear Windows Event Logs

      Clear Windows Event Logs to hide the activity of an intrusion.

    • Loads dropped DLL

    • Hide Artifacts: Hidden Window

      Windows that would typically be displayed when an application carries out an operation can be hidden.

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks