General

  • Target

    JaffaCakes118_a2ed7ee4774559afd500659c16674e5f

  • Size

    569KB

  • Sample

    250108-q5k82aslax

  • MD5

    a2ed7ee4774559afd500659c16674e5f

  • SHA1

    b0413ea8b0116c205d051ca60ada2c03cfd99799

  • SHA256

    8700911ee526af2051c9485f71804da170c9f76ba50ec266598169159a654469

  • SHA512

    61782e6854f993779d82dd281570cee9b4d62dd4351b4fcb55695b49f34df57d769729cae97822ba070f4cd95d1c1c1452aa34fc8cecc0897d114d0afb7b3864

  • SSDEEP

    12288:f20IpfjSt64LnnhlgVRZ7K/Tk7SP0q6qKLnHEbpt26XE85RSKoT:fPemtrLnY7ETMi07ZC

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

194.5.97.229:1195

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      JaffaCakes118_a2ed7ee4774559afd500659c16674e5f

    • Size

      569KB

    • MD5

      a2ed7ee4774559afd500659c16674e5f

    • SHA1

      b0413ea8b0116c205d051ca60ada2c03cfd99799

    • SHA256

      8700911ee526af2051c9485f71804da170c9f76ba50ec266598169159a654469

    • SHA512

      61782e6854f993779d82dd281570cee9b4d62dd4351b4fcb55695b49f34df57d769729cae97822ba070f4cd95d1c1c1452aa34fc8cecc0897d114d0afb7b3864

    • SSDEEP

      12288:f20IpfjSt64LnnhlgVRZ7K/Tk7SP0q6qKLnHEbpt26XE85RSKoT:fPemtrLnY7ETMi07ZC

    • AsyncRat

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

    • Asyncrat family

    • Looks for VirtualBox Guest Additions in registry

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Looks for VMWare Tools registry key

    • 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.

    • Maps connected drives based on registry

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks