General

  • Target

    6f4b4fad8040c4c9432810e57756562a_JaffaCakes118

  • Size

    44KB

  • Sample

    241023-rcl6aswblm

  • MD5

    6f4b4fad8040c4c9432810e57756562a

  • SHA1

    a57588b056e134b6d8f9748f339eacbd274cde8f

  • SHA256

    e4c8b6ef8ff2bf11700e1e5badaa593510b2fc5675c9d7fa6d709bcef2b76481

  • SHA512

    fe94310e5e083e287a01a2a88cc76179e98d09376d23c108543a48579b3677756028a97f3fc3e3ab8cf4e2904cd874190a0df07d8e1f226b790365edfb59306e

  • SSDEEP

    768:rBr+tjFqTPkAlfztB1lr6an3smTA8uvm2DfOTwYPIUzoNpJ:FyRUHlrL1lr6an3TLuvm2buQ0oNpJ

Malware Config

Extracted

Family

xtremerat

C2

JB1988.zapto.org

Targets

    • Target

      6f4b4fad8040c4c9432810e57756562a_JaffaCakes118

    • Size

      44KB

    • MD5

      6f4b4fad8040c4c9432810e57756562a

    • SHA1

      a57588b056e134b6d8f9748f339eacbd274cde8f

    • SHA256

      e4c8b6ef8ff2bf11700e1e5badaa593510b2fc5675c9d7fa6d709bcef2b76481

    • SHA512

      fe94310e5e083e287a01a2a88cc76179e98d09376d23c108543a48579b3677756028a97f3fc3e3ab8cf4e2904cd874190a0df07d8e1f226b790365edfb59306e

    • SSDEEP

      768:rBr+tjFqTPkAlfztB1lr6an3smTA8uvm2DfOTwYPIUzoNpJ:FyRUHlrL1lr6an3TLuvm2buQ0oNpJ

    • Detect XtremeRAT payload

    • Modifies WinLogon for persistence

    • XtremeRAT

      The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.

    • Adds policy Run key to start application

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks