Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-04-2024 09:04

General

  • Target

    fc66b7875add3e5507b88048937fa4af_JaffaCakes118.exe

  • Size

    136KB

  • MD5

    fc66b7875add3e5507b88048937fa4af

  • SHA1

    02e30b09c3dbbce94939b3bf97a45f1b1f460a88

  • SHA256

    e230003597e8a3942e9358b9642e1229f01d566383b202153927fc4bd806715f

  • SHA512

    6c98f5170c7ca87c105065d94234305d64192799266929cc57af2212677af22ed16e6f44b6990cb925f2ab4c8c07131d0511ea4aac0f7b3cab0cec6b3d2902a4

  • SSDEEP

    3072:hOstg+b+nn8MNr+2/DAWjlO2H2y4UerhcXVEhojKmDH89MkXa4OoyWNu:hOn+b+n8M5+gxOTyTq2XVEhojp81XaDl

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 2 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 2 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc66b7875add3e5507b88048937fa4af_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fc66b7875add3e5507b88048937fa4af_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • Drops file in System32 directory
    • Suspicious behavior: LoadsDriver
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2128
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c delplme.bat
      2⤵
        PID:3484

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Pre-OS Boot

    1
    T1542

    Bootkit

    1
    T1542.003

    Defense Evasion

    Pre-OS Boot

    1
    T1542

    Bootkit

    1
    T1542.003

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\delplme.bat
      Filesize

      306B

      MD5

      48619188df966863fb3b08464ce2f999

      SHA1

      82d3f26cb36d95f37d7a6850d12f88c98830bf38

      SHA256

      51fd2278e7e590514c1a4130725c3abc14ac280a3efe33187cc2a565469a41ff

      SHA512

      0d36b417daac976e5a8d3c8a11e6c2451f754d9580435a0bd8cee5d75a9dcfb027e084fda43cb6e82cdff9e1a7db593f3030901ebc5124bda4a546e7b96c0c1f

    • C:\Windows\SysWOW64\od3mdi.dll
      Filesize

      100KB

      MD5

      55720045c16aa2011d3b6704a56b65e8

      SHA1

      acca53faf75011c7a81281b068f5f6a0b71fc497

      SHA256

      100bb605577c3807cb43218c2f0dbe321213e71099adfafe9a20ea91470be82b

      SHA512

      93d572c53b326963fa7a88f08b2fef967d691d0b707f3c8945d9755ec1e612576c2da2364e105d382270c6b42709e447499a102e3c092be71db084032cf60ff5

    • memory/2128-0-0x0000000000400000-0x0000000000457000-memory.dmp
      Filesize

      348KB

    • memory/2128-1-0x0000000000600000-0x0000000000601000-memory.dmp
      Filesize

      4KB

    • memory/2128-9-0x0000000000400000-0x0000000000457000-memory.dmp
      Filesize

      348KB