Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    17-07-2024 21:40

General

  • Target

    54e6ad627941b2b84ce6dc809666526d_JaffaCakes118.exe

  • Size

    193KB

  • MD5

    54e6ad627941b2b84ce6dc809666526d

  • SHA1

    0090a434a6a26582741702e561b39660c3277f39

  • SHA256

    1121bb6a0c81e9e93b9766edbaba91dc00f7b4d6e3f8a8b249447d80ff573762

  • SHA512

    f264d40afd8a0029c601643c740906a5e05e3d525a569f6c9bed8380b7fd42d0dc8e0c29049b0f6102ee2f14ddc7f9c16436c1a6d9ca84c086e25b6fdcfd20fa

  • SSDEEP

    3072:0Bxv3XPm6eESE0W7oUu+D96HM0XUGXU2Fo21364EoiJeeI+StSqYLj8MfseRd57/:0BxmFFWc1qnVW5GJZ2tNYLj8MfsGXu0

Malware Config

Extracted

Family

xtremerat

C2

mal3k.no-ip.org

Signatures

  • Detect XtremeRAT payload 4 IoCs
  • XtremeRAT

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

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

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

  • UPX packed file 6 IoCs

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

  • Adds Run key to start application 2 TTPs 5 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\54e6ad627941b2b84ce6dc809666526d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\54e6ad627941b2b84ce6dc809666526d_JaffaCakes118.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of SetThreadContext
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Users\Admin\AppData\Local\Temp\54e6ad627941b2b84ce6dc809666526d_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\54e6ad627941b2b84ce6dc809666526d_JaffaCakes118.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1620
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Adds Run key to start application
        PID:2336
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Adds Run key to start application
        • Drops file in System32 directory
        • Suspicious use of SetWindowsHookEx
        PID:1628

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\MaL3K\MaL3K.exe

    Filesize

    193KB

    MD5

    54e6ad627941b2b84ce6dc809666526d

    SHA1

    0090a434a6a26582741702e561b39660c3277f39

    SHA256

    1121bb6a0c81e9e93b9766edbaba91dc00f7b4d6e3f8a8b249447d80ff573762

    SHA512

    f264d40afd8a0029c601643c740906a5e05e3d525a569f6c9bed8380b7fd42d0dc8e0c29049b0f6102ee2f14ddc7f9c16436c1a6d9ca84c086e25b6fdcfd20fa

  • memory/1620-9-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/1620-11-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/1620-13-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/1620-12-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/1628-24-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/1628-21-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/1720-3-0x0000000000330000-0x0000000000331000-memory.dmp

    Filesize

    4KB

  • memory/1720-1-0x0000000000320000-0x0000000000321000-memory.dmp

    Filesize

    4KB

  • memory/1720-15-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/1720-2-0x0000000000330000-0x0000000000331000-memory.dmp

    Filesize

    4KB

  • memory/1720-0-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/1720-10-0x00000000027D0000-0x0000000002854000-memory.dmp

    Filesize

    528KB

  • memory/1720-4-0x0000000000330000-0x0000000000331000-memory.dmp

    Filesize

    4KB

  • memory/1720-6-0x0000000000310000-0x0000000000311000-memory.dmp

    Filesize

    4KB

  • memory/1720-5-0x0000000000330000-0x0000000000331000-memory.dmp

    Filesize

    4KB

  • memory/2336-18-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/2336-17-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB