Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-08-2024 18:23

General

  • Target

    8b78b909dcfe0d6e263e5e16481672f6_JaffaCakes118.exe

  • Size

    520KB

  • MD5

    8b78b909dcfe0d6e263e5e16481672f6

  • SHA1

    196bf89833b7e99e8479bcf8b48ac503ebc6ac4e

  • SHA256

    5b121c485ac955445c9f9550f1f700c684016b0443beac607f76aab3d6826e34

  • SHA512

    23b5856fd7786fad1aeafff88c7b1ded7a8b046b43590f6af4cff7eab94e2b4ead26515fbfc43cab82a51a0de0e5be558f31c88a3c7a3cea76bee386ad34a5fa

  • SSDEEP

    12288:+lI39/HDTRV+XMcg5Hzqx3Kyw3XgUGk4nc/GlfCtzkcuWN77ut:+lI3NHDTeXMcMWxRwHgNMKfCt/Nm

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 33 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Writes to the Master Boot Record (MBR) 1 TTPs 3 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 19 IoCs
  • Drops file in Windows directory 13 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 51 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b78b909dcfe0d6e263e5e16481672f6_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8b78b909dcfe0d6e263e5e16481672f6_JaffaCakes118.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4848
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /u /s "C:\Windows\system32\70l8.dll"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2548
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /u /s "C:\Windows\system32\03ca.dll"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2104
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /u /s "C:\Windows\system32\da3r.dll"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1212
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /u /s "C:\Windows\system32\8ado.dll"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4508
    • C:\Users\Admin\AppData\Local\Temp\h8nil4o8\q.exe
      C:\Users\Admin\AppData\Local\Temp\h8nil4o8\q.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:3044
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /s "C:\Windows\system32\8ado.dll"
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:3428
    • C:\Windows\SysWOW64\aaad.exe
      C:\Windows\system32\aaad.exe -i
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2728
    • C:\Windows\SysWOW64\aaad.exe
      C:\Windows\system32\aaad.exe -s
      2⤵
      • Executes dropped EXE
      PID:2856
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32 C:\Windows\system32\830e.dll, Always
      2⤵
      • Loads dropped DLL
      • Writes to the Master Boot Record (MBR)
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      PID:5016
  • C:\Windows\SysWOW64\aaad.exe
    C:\Windows\SysWOW64\aaad.exe
    1⤵
    • Drops file in Drivers directory
    • Executes dropped EXE
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4704
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32 C:\Windows\system32\830e.dll,Always
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:3680

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\h8nil4o8\p.dll

    Filesize

    380KB

    MD5

    b983302b8b45b453a5b3104bfdc1a973

    SHA1

    dc006cc01841931cfb58f297fcb80e567b1a7574

    SHA256

    6527e9592edc1c9efad835630da58412c840475bdd235238470fb66073f565de

    SHA512

    e7d321c0816ed3da62bf163e1957d896b4463dd943c354cdaad94bd9c94ddf86f1c8783d0c0418bbb70b0aa911d16c9782027c73f1f6aabc220b0680a69a9c56

  • C:\Users\Admin\AppData\Local\Temp\h8nil4o8\q.exe

    Filesize

    92KB

    MD5

    96304ef9a2c3c1e384be4b58771e3a43

    SHA1

    323ae38af1ee65168abd25e17b177d1a3ecb5880

    SHA256

    68c2a4524b2171a623093695fe0cb2b51f122d9c46204ef4d724b59e973186ec

    SHA512

    023bac06f494625aecd015c2d3fe33f981c410b098c8aed988e321786aa4b0a5e22269e73dfa55fe8ebcd5e13fac566f89133bbc29a68e7a268190a25b319aa0

  • C:\Users\Admin\AppData\Local\Temp\h8nil4o8\s.exe

    Filesize

    108KB

    MD5

    923a5fc659a884ed9b30c327732f0caf

    SHA1

    1dcc3f0e654ea2098cbe9f023bea150711caac6f

    SHA256

    38c74477e1098bb34c0a3417fa34c021b0b99ad175765d65b8c417a45eaa804f

    SHA512

    60f7b99642a32b5fc7871333e1292f4d7d2dc14269ad2ecae4943d8ee7c4db77798b23b22356241c8640a88ccc80ccd2c284280b7147be92e4df83c99127972a

  • C:\Windows\SysWOW64\8ado.dll

    Filesize

    136KB

    MD5

    64db1299c26aa1479e40be31034b7b7b

    SHA1

    d917bb0e47574721e3457edead34e5ca926bf31c

    SHA256

    64a330806590c6505c1d6932f85777adf5138d6b9ae7babe7cdd42f05caa03f4

    SHA512

    1219fb3a3a98af6ccbce05d2908df8fc9b8575f29a5c187b5471563de9404232d1dcfcaaf9c3cde7a14255caea4de86731857570bc130604a082ae85b950922e

  • C:\Windows\Temp\tmp.exe

    Filesize

    20KB

    MD5

    c060f4d902b639dc692b5bff2fb199c5

    SHA1

    7b1b4fdb3f9b4f94af40682026b5367347bc8bc5

    SHA256

    cfc8cc21ac16b078291139cdfed435de23bd4144d238828063c48d26e42827fb

    SHA512

    a545142c3e06c6d36e610962d46f229ada793a9e73da4251d40f15f2f31bafcadd80d17a94f8bd4edb1e9dc98344df3ad65fcdaaf71235a279e2b10a4c3d8afb