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Analysis

  • max time kernel
    150s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/07/2024, 10:54

General

  • Target

    2849b60eb790f8127e85d8d6a433846e_JaffaCakes118.exe

  • Size

    500KB

  • MD5

    2849b60eb790f8127e85d8d6a433846e

  • SHA1

    b9a587a965d3c91bac29d2aa138e3a0680927454

  • SHA256

    782979c3363efffb51a2cbd969c7e108b7132df495b239fef88639c1059a98cf

  • SHA512

    285c0bb8bf6c4f240d282c52351281d56e38e2e46447812b9e8bf663fa8501ae44216301fb3c1fb5324d542523bd1702f60fb135ead0b502ed39b8ff6a9b7a23

  • SSDEEP

    12288:BXNRS8FLnOi1fGB+6uvocZUFy2enYu2vlipnN47s:BXPSYyi1+B+6SDU42eYu2vAcI

Score
7/10
upx

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • UPX packed file 7 IoCs

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

  • Drops file in System32 directory 8 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2849b60eb790f8127e85d8d6a433846e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\2849b60eb790f8127e85d8d6a433846e_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4580
    • C:\Windows\SysWOW64\wuauclts.exe
      C:\Windows\system32\wuauclts.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4840
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Windows\SysWOW64\J.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4948
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Windows\SysWOW64\wuauclts.exe" -h -r -s
          4⤵
          • Drops file in System32 directory
          • Views/modifies file attributes
          PID:5104
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\J.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4952
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\2849b60eb790f8127e85d8d6a433846e_JaffaCakes118.exe" -h -r -s
        3⤵
        • Views/modifies file attributes
        PID:3652

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\J.bat

    Filesize

    462B

    MD5

    8c131410578261a7e41cb18914dc767d

    SHA1

    29f296a1c0924acf9a33eacd6f20f497e0d458f8

    SHA256

    e7d555822a470e96db627bcf14f50efbd0f7743d826b3dd5b0ecadad7de15fd1

    SHA512

    c8d20b75fb78f980ba2545dcc110e25a6adf19aac0b51f328db98e0a65228c262edd0373f45f448071bca83036d0537727c74df40e11fcdecf94fdb98a20047a

  • C:\Windows\SysWOW64\J.bat

    Filesize

    254B

    MD5

    dbd9bee5c490ffd969f99cb4e91f4879

    SHA1

    fc053ea6a715641876cab3d38e0e8b8ea2537a4f

    SHA256

    045d32fd918ffcf4c9572eaccb466cfac0b47c62ed4db2afb607e02e0f44f5f4

    SHA512

    5e143d1eb33b563bc4308a23628607844c6f481445b10ef85129cbbeee99dc8b388cc222059156f77e355c9474043fe14a8175d97b895a3812ef2b7816e2d4e1

  • C:\Windows\SysWOW64\mswinsck.ocx

    Filesize

    105KB

    MD5

    9484c04258830aa3c2f2a70eb041414c

    SHA1

    b242a4fb0e9dcf14cb51dc36027baff9a79cb823

    SHA256

    bf7e47c16d7e1c0e88534f4ef95e09d0fd821ed1a06b0d95a389b35364b63ff5

    SHA512

    9d0e9f0d88594746ba41ea4a61a53498619eda596e12d8ec37d01cfe8ceb08be13e3727c83d630a6d9e6d03066f62444bb94ea5a0d2ed9d21a270e612db532a0

  • C:\Windows\SysWOW64\wuauclts.exe

    Filesize

    500KB

    MD5

    2849b60eb790f8127e85d8d6a433846e

    SHA1

    b9a587a965d3c91bac29d2aa138e3a0680927454

    SHA256

    782979c3363efffb51a2cbd969c7e108b7132df495b239fef88639c1059a98cf

    SHA512

    285c0bb8bf6c4f240d282c52351281d56e38e2e46447812b9e8bf663fa8501ae44216301fb3c1fb5324d542523bd1702f60fb135ead0b502ed39b8ff6a9b7a23

  • C:\Windows\SysWOW64\zlib.dll

    Filesize

    52KB

    MD5

    c88a6474424b1bf960e7ebb4b28d0ed0

    SHA1

    1405881be65153a661feab43115532f7ec80c077

    SHA256

    0df0c22bf411ad670d7b8fe5a533e4831313d5a3118cf9216389c642c90ec2f9

    SHA512

    a4c273f474cf15b86dc038a2bfceb28ee17178de20aa5c17378b15e92159cf70c29549d4e7254ae351d45054e4d15c3b87e5808fad9899f9417864fcb6f14d78

  • memory/4580-0-0x0000000000400000-0x0000000000564000-memory.dmp

    Filesize

    1.4MB

  • memory/4580-1-0x0000000000400000-0x0000000000564000-memory.dmp

    Filesize

    1.4MB

  • memory/4580-35-0x0000000000400000-0x0000000000564000-memory.dmp

    Filesize

    1.4MB

  • memory/4840-21-0x0000000000400000-0x0000000000564000-memory.dmp

    Filesize

    1.4MB

  • memory/4840-20-0x0000000000400000-0x0000000000564000-memory.dmp

    Filesize

    1.4MB

  • memory/4840-34-0x0000000000400000-0x0000000000564000-memory.dmp

    Filesize

    1.4MB