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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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, 15:26

General

  • Target

    JaffaCakes118_5a515ccdbfb76acf91839684585abf60.dll

  • Size

    137KB

  • MD5

    5a515ccdbfb76acf91839684585abf60

  • SHA1

    16a18160a614bdc5a7796c99853b127cb362bc2d

  • SHA256

    db1420a2ff6a29f63ed3da12087155231cce82b4550e20cd31fb287e44832514

  • SHA512

    e83e06ed0d6c1fcf0590d8e595f41d754e2cc44133401efea07683f8f8195121296a896ec68aa30372087f9e2196fc30eca9dd51970f9cbcb5e5ff6e00b1d82b

  • SSDEEP

    3072:/NqgwmI488TRAfVhBQ7P+0Us4Q+LQI1H2UJ2mro/Y:svmlAfVhy75ZlIx2Svo/Y

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 3 IoCs

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

  • Program crash 2 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_5a515ccdbfb76acf91839684585abf60.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a515ccdbfb76acf91839684585abf60.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4644
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2032
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 264
          4⤵
          • Program crash
          PID:212
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 632
        3⤵
        • Program crash
        PID:3120
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2032 -ip 2032
    1⤵
      PID:4580
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4644 -ip 4644
      1⤵
        PID:4564

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        106KB

        MD5

        db92102c142a97620d0f02b3321d235b

        SHA1

        84adf0da0cfa131b61a23cf26719b5d0c75702a9

        SHA256

        12dc8f962b54cbf925146db55709c9ad8465e392aede3a5095f74e7ca6ade2a5

        SHA512

        04bbb8ca5e5e63e85da4c4a9de8f46352cb9437005c0cae014da1d61c58916584a284fb7fba21b06f963de440362e150b6f2ef5d69143fd6a187c0712bf28d65

      • memory/2032-4-0x0000000000400000-0x000000000045B000-memory.dmp

        Filesize

        364KB

      • memory/2032-6-0x0000000002060000-0x0000000002061000-memory.dmp

        Filesize

        4KB

      • memory/2032-8-0x0000000000400000-0x000000000045B000-memory.dmp

        Filesize

        364KB

      • memory/4644-0-0x0000000040FC0000-0x0000000040FE7000-memory.dmp

        Filesize

        156KB

      • memory/4644-7-0x0000000040FC0000-0x0000000040FE7000-memory.dmp

        Filesize

        156KB