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Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26/01/2025, 22:50

General

  • Target

    JaffaCakes118_39d801f58ce55e868801333e3dacce6d.exe

  • Size

    122KB

  • MD5

    39d801f58ce55e868801333e3dacce6d

  • SHA1

    ba1cd7fe13b6413b3d6df00392727cad81fdb058

  • SHA256

    51a99ba9672c9be5b7da59bc033b12726d70460d5f9ff7c8c599db73c17d6f8a

  • SHA512

    44bc77acd925500cbab39e6dd073cdf1ce5ef5c054da57a8f6d822fd50c6a7eaf2f71afaf99340246e080c7262e10de6d581727701c39fef5aae3d20807f78cf

  • SSDEEP

    3072:piBiyJ+MgpIOszYpew6bI/5hoqNz2OUKCXoA2n+Hx/do:GiysMq+Yt6K5KNzokR

Malware Config

Signatures

  • Detect XtremeRAT payload 6 IoCs
  • XtremeRAT

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

  • Xtremerat family
  • Disables Task Manager via registry modification
  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39d801f58ce55e868801333e3dacce6d.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39d801f58ce55e868801333e3dacce6d.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1836
    • C:\Windows\SysWOW64\REG.exe
      REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies registry key
      PID:2800
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      2⤵
        PID:2272

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1836-0-0x00000000746F1000-0x00000000746F2000-memory.dmp

      Filesize

      4KB

    • memory/1836-1-0x00000000746F0000-0x0000000074C9B000-memory.dmp

      Filesize

      5.7MB

    • memory/1836-2-0x00000000746F0000-0x0000000074C9B000-memory.dmp

      Filesize

      5.7MB

    • memory/1836-22-0x00000000746F0000-0x0000000074C9B000-memory.dmp

      Filesize

      5.7MB

    • memory/2272-17-0x0000000000C80000-0x0000000000C92000-memory.dmp

      Filesize

      72KB

    • memory/2272-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2272-21-0x0000000000C80000-0x0000000000C92000-memory.dmp

      Filesize

      72KB

    • memory/2272-15-0x0000000000C80000-0x0000000000C92000-memory.dmp

      Filesize

      72KB

    • memory/2272-14-0x0000000000C80000-0x0000000000C92000-memory.dmp

      Filesize

      72KB

    • memory/2272-9-0x0000000000C80000-0x0000000000C92000-memory.dmp

      Filesize

      72KB

    • memory/2272-7-0x0000000000C80000-0x0000000000C92000-memory.dmp

      Filesize

      72KB

    • memory/2272-5-0x0000000000C80000-0x0000000000C92000-memory.dmp

      Filesize

      72KB

    • memory/2272-11-0x0000000000C80000-0x0000000000C92000-memory.dmp

      Filesize

      72KB