General

  • Target

    JaffaCakes118_1507596fa6526bb29b7add253a4422cf

  • Size

    365KB

  • Sample

    250106-hsh9xasjdq

  • MD5

    1507596fa6526bb29b7add253a4422cf

  • SHA1

    31c75cf7479e8410ce7234a1064abd04b8010809

  • SHA256

    3a9c46eccca422e6a7c8b7bebda9a7314c280742a53b63961f181530c56c233c

  • SHA512

    f691bc462de60228aa00ea39aa3217783f8d656383ae9271d7a937f509fdfaab14436b934e054d46166278364ca7c6b6856338f6f3a42e1d24daa4b059c58cd1

  • SSDEEP

    6144:beQ8CfYK6Uqd2GhNPwT2NE6UVKbM0I28VHbWpXqX1vST01:beQjY3Ui2iNYTQE6UYbMRZbv0y

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_1507596fa6526bb29b7add253a4422cf

    • Size

      365KB

    • MD5

      1507596fa6526bb29b7add253a4422cf

    • SHA1

      31c75cf7479e8410ce7234a1064abd04b8010809

    • SHA256

      3a9c46eccca422e6a7c8b7bebda9a7314c280742a53b63961f181530c56c233c

    • SHA512

      f691bc462de60228aa00ea39aa3217783f8d656383ae9271d7a937f509fdfaab14436b934e054d46166278364ca7c6b6856338f6f3a42e1d24daa4b059c58cd1

    • SSDEEP

      6144:beQ8CfYK6Uqd2GhNPwT2NE6UVKbM0I28VHbWpXqX1vST01:beQjY3Ui2iNYTQE6UYbMRZbv0y

    • 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