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Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16/12/2024, 02:02

General

  • Target

    f6c71c2a2f38660bde583f0f6e91fb52_JaffaCakes118.exe

  • Size

    669KB

  • MD5

    f6c71c2a2f38660bde583f0f6e91fb52

  • SHA1

    6d3d287560c3d5553f40ecd4bf007e6ed0a24908

  • SHA256

    668d9c11f442b407034832c3a40c9c1ef06f48f9d374985d7716c4688ed499c6

  • SHA512

    de709c965f8d7259b002950846338d77e610213311d1d2181ed336c22a9a95ab1a5d7e2f954f28f0998d6b3de11ce292872d4fce83eeb5670f8e60233895b3d2

  • SSDEEP

    12288:s0aNzHaQ9DA44VdmIULqiTIYIt2Y/ZNbi3XxWN1RrfoaKWEe659aK:Lal6+DNqohLH/IffR0aKN9X

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Metasploit family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 4 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 2 IoCs
  • Windows security modification 2 TTPs 5 IoCs
  • Adds Run key to start application 2 TTPs 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 data under HKEY_USERS 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6c71c2a2f38660bde583f0f6e91fb52_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f6c71c2a2f38660bde583f0f6e91fb52_JaffaCakes118.exe"
    1⤵
    • Drops file in Drivers directory
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2872
    • C:\Windows\SysWOW64\drivers\alcomrg.exe
      "C:\Windows\system32\drivers\alcomrg.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Drops file in Drivers directory
      • Checks BIOS information in registry
      • Deletes itself
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Windows security modification
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2796

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Windows\SysWOW64\drivers\alcomrg.exe

    Filesize

    669KB

    MD5

    f6c71c2a2f38660bde583f0f6e91fb52

    SHA1

    6d3d287560c3d5553f40ecd4bf007e6ed0a24908

    SHA256

    668d9c11f442b407034832c3a40c9c1ef06f48f9d374985d7716c4688ed499c6

    SHA512

    de709c965f8d7259b002950846338d77e610213311d1d2181ed336c22a9a95ab1a5d7e2f954f28f0998d6b3de11ce292872d4fce83eeb5670f8e60233895b3d2

  • memory/2796-34-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-28-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-45-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-44-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-43-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-16-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-42-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-41-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-18-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-21-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-29-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-22-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-23-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-24-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-25-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-26-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-40-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-27-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-20-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-30-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-31-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-32-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-33-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-39-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-35-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-36-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2796-38-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2872-0-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2872-2-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2872-13-0x0000000004840000-0x0000000004A2F000-memory.dmp

    Filesize

    1.9MB

  • memory/2872-14-0x0000000004840000-0x0000000004A2F000-memory.dmp

    Filesize

    1.9MB

  • memory/2872-1-0x0000000000401000-0x000000000040E000-memory.dmp

    Filesize

    52KB

  • memory/2872-6-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB

  • memory/2872-5-0x0000000000400000-0x00000000005EF000-memory.dmp

    Filesize

    1.9MB