General

  • Target

    4a12be812cd0675296bd5846528b5dac_JaffaCakes118

  • Size

    3.7MB

  • Sample

    240715-rvg93avfmq

  • MD5

    4a12be812cd0675296bd5846528b5dac

  • SHA1

    e1609ddc6315ec0f28b088ff0cd7fd21faa83834

  • SHA256

    96bd83c30943e45b4bfd457aecccbc05f041f897da86340d5be89280d50c486e

  • SHA512

    1f5f51f3522daab1feae6f8e97a58dfb41463ca03bbba689c2ce1569a04ac9d6445cd9624792d263484f8aa5077b22ae6899a2cdd36cdcb7d5e016b7b607cf66

  • SSDEEP

    24576:lAHnh+eWsN3skA4RV1Hom2KXMmHa0ifaOza5Gmuk0eJSKTXyxcdgdfQCdaQ6+RRE:Uh+ZkldoPK8Ya055

Malware Config

Extracted

Family

xtremerat

C2

dferwest.net

Targets

    • Target

      4a12be812cd0675296bd5846528b5dac_JaffaCakes118

    • Size

      3.7MB

    • MD5

      4a12be812cd0675296bd5846528b5dac

    • SHA1

      e1609ddc6315ec0f28b088ff0cd7fd21faa83834

    • SHA256

      96bd83c30943e45b4bfd457aecccbc05f041f897da86340d5be89280d50c486e

    • SHA512

      1f5f51f3522daab1feae6f8e97a58dfb41463ca03bbba689c2ce1569a04ac9d6445cd9624792d263484f8aa5077b22ae6899a2cdd36cdcb7d5e016b7b607cf66

    • SSDEEP

      24576:lAHnh+eWsN3skA4RV1Hom2KXMmHa0ifaOza5Gmuk0eJSKTXyxcdgdfQCdaQ6+RRE:Uh+ZkldoPK8Ya055

    • Detect XtremeRAT payload

    • ISR Stealer

      ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

    • ISR Stealer payload

    • XtremeRAT

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

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • 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

    • Reads user/profile data of web browsers

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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks