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Analysis

  • max time kernel
    92s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/01/2025, 17:20

General

  • Target

    JaffaCakes118_06400ae47fed1374f83aec7625342932.dll

  • Size

    314KB

  • MD5

    06400ae47fed1374f83aec7625342932

  • SHA1

    2e9dd83df81b9c785b6bfaace192565f06912f65

  • SHA256

    8fe7d762a1af83eab4b192468450b56c6b3841eeb2152e0c8aeac5b844679c53

  • SHA512

    732425734bcdf5f0e350adeb1fe5e9e2f510a50e8dd91ea36a0bc1a4179c8b5a674551ff9662f6dd8a18564625df55880b66505bf39080344a934e2f1ac2316b

  • SSDEEP

    6144:FMJOWK4l0wqOVq1Kwfxibt8T2t9Mv/mWGLRsV2:F2OWK4llHwfYyTGMv/m1GV2

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 1 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 WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06400ae47fed1374f83aec7625342932.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5072
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06400ae47fed1374f83aec7625342932.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:652
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2624
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2624 -s 10180
          4⤵
          • Program crash
          PID:3452
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2624 -ip 2624
    1⤵
      PID:64

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\~TM9952.tmp

      Filesize

      1.6MB

      MD5

      4f3387277ccbd6d1f21ac5c07fe4ca68

      SHA1

      e16506f662dc92023bf82def1d621497c8ab5890

      SHA256

      767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

      SHA512

      9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

    • C:\Windows\SysWOW64\rundll32mgr.exe

      Filesize

      163KB

      MD5

      c8b1f715192e0e340d54b8fac428eb44

      SHA1

      7a77163f8d073ecd2b98cc832d2e70719850beb1

      SHA256

      60767adaadd87b2220096918365c352c24092807d4e5d42bffadaceeb6136923

      SHA512

      9438c4c284b1a125a64bf5953365a6e0b46dd59649d01447861cfdfebd65989a523bc31654101ff8a2d53ed4f2dbf90c79468f2141bacf738a8ed0c7a92da11f

    • memory/652-0-0x0000000010000000-0x0000000010053000-memory.dmp

      Filesize

      332KB

    • memory/2624-6-0x0000000002210000-0x0000000002278000-memory.dmp

      Filesize

      416KB

    • memory/2624-9-0x0000000000400000-0x0000000000468000-memory.dmp

      Filesize

      416KB