Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-01-2025 22:25

General

  • Target

    JaffaCakes118_610267c030485123ae08269ff7177520.dll

  • Size

    312KB

  • MD5

    610267c030485123ae08269ff7177520

  • SHA1

    034fad9125a4a8ae24e80877bc2a52b7ac5521ba

  • SHA256

    7e64c10736070aee732ab70806a3dab56a1b7dbf47c787b6b4b6758a18581059

  • SHA512

    49954f97d69e78279ab10e38378914064110ce7483077e5219bd29b544641db49bc5b71a1a3001bef6b498390c8b1ec3aabb1698bdddb293a58d3d2e633bd637

  • SSDEEP

    6144:pN755D+dC8SvqQpaxQOBJJ+wGnrtrYHyVDK+ow:nl8qAJ+dnxrYSVUw

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Ramnit family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 8 IoCs

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

  • Program crash 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.

  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_610267c030485123ae08269ff7177520.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4876
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_610267c030485123ae08269ff7177520.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2184
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of UnmapMainImage
        PID:1068
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1068 -s 360
          4⤵
          • Program crash
          PID:1664
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1068 -ip 1068
    1⤵
      PID:3688

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\~TM8993.tmp

      Filesize

      1.6MB

      MD5

      4f3387277ccbd6d1f21ac5c07fe4ca68

      SHA1

      e16506f662dc92023bf82def1d621497c8ab5890

      SHA256

      767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

      SHA512

      9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

    • C:\Windows\SysWOW64\rundll32mgr.exe

      Filesize

      84KB

      MD5

      a6ee7aab6b8f8268bf9eb763949d5c8b

      SHA1

      4600e17eb8fa4a11170aaa2c54d98126e58290e0

      SHA256

      9030a2ec813b5a70b898aacd81378c941bc5f62e78cc1a958f93106ede81228c

      SHA512

      00569ed578d3f0b535b0c17dc131131e4aaf73b8b5235c70fcf8de649e8a942f48a013e8c687c6abab05a8f7516dabed41309da6ce7c9eb26992183e4794afb8

    • memory/1068-20-0x0000000077382000-0x0000000077383000-memory.dmp

      Filesize

      4KB

    • memory/1068-19-0x0000000077382000-0x0000000077384000-memory.dmp

      Filesize

      8KB

    • memory/1068-14-0x0000000000400000-0x000000000042A000-memory.dmp

      Filesize

      168KB

    • memory/1068-16-0x0000000000400000-0x000000000042A000-memory.dmp

      Filesize

      168KB

    • memory/1068-10-0x0000000000400000-0x000000000042A000-memory.dmp

      Filesize

      168KB

    • memory/1068-5-0x0000000000401000-0x0000000000405000-memory.dmp

      Filesize

      16KB

    • memory/1068-23-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1068-11-0x00000000012A0000-0x00000000012A1000-memory.dmp

      Filesize

      4KB

    • memory/1068-13-0x0000000000400000-0x000000000042A000-memory.dmp

      Filesize

      168KB

    • memory/1068-9-0x0000000000400000-0x000000000042A000-memory.dmp

      Filesize

      168KB

    • memory/1068-8-0x0000000000400000-0x000000000042A000-memory.dmp

      Filesize

      168KB

    • memory/1068-7-0x0000000000400000-0x000000000042A000-memory.dmp

      Filesize

      168KB

    • memory/1068-6-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1068-22-0x0000000000401000-0x0000000000405000-memory.dmp

      Filesize

      16KB

    • memory/2184-1-0x0000000010000000-0x0000000010052000-memory.dmp

      Filesize

      328KB