Windows 7 deprecation

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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
    10/08/2024, 07:06

General

  • Target

    8535fc494a078ec7b975908dd91a04e0_JaffaCakes118.exe

  • Size

    982KB

  • MD5

    8535fc494a078ec7b975908dd91a04e0

  • SHA1

    8546009f7f1466e4f7eb1cac4fe246af2963b1d5

  • SHA256

    8acd1a17583964daef8c49d20f2c970576241810cd3c91dbd8d24efe77cc1b50

  • SHA512

    558f029c9a99385e9ceffc9450619d0c0f3eb8be02e3ccde275fa5dedb2b8c98aff5a235435ae1a7552ff76ab5ac0fd40fae0467659d1c66f916eb17321a6af7

  • SSDEEP

    24576:QFszWS5unaLSnYTwGJ+xCXdgVtgzEwe2Xp+8YKdxGHzcDJ:QxaOYTwM+ct2PKdqADJ

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 4 IoCs
  • UPX packed file 3 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • AutoIT Executable 3 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies Internet Explorer settings 1 TTPs 41 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8535fc494a078ec7b975908dd91a04e0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8535fc494a078ec7b975908dd91a04e0_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\notice.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\notice.exe" /S
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:548
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\tjmy.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\tjmy.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1568
      • C:\Program Files (x86)\Internet Explorer\Iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\Iexplore.exe" http://www.iydy.cn/tjmy.html
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3104
        • C:\Program Files\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://www.iydy.cn/tjmy.html
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:384
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:384 CREDAT:17410 /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2944
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\down.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\down.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1036
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ping 127.0.0.1 -n 3&del /q "C:\Users\Admin\AppData\Local\Temp\RarSFX0\down.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:2432
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1 -n 3
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:1456
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\xun1ei.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\xun1ei.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4648

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\THHXO5RX\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\down.exe

    Filesize

    677KB

    MD5

    192d1e8bac53c13537708e4d5d90616e

    SHA1

    28c0f684c8b58c42c3bf9823bc3d831b6cac9b98

    SHA256

    f1eeaff0ee64ee8a8ce2a0fc3d0906b156a7f9f85748fca2f95481ba233f3bb8

    SHA512

    01b8d8376fe5883c32d5b04dc6089a07a608996e6bacc13c915d18876c3b65b5b500c1bd27ff7f507b9fefe01aebd9845c4153d2c717309adaa6db559bd725b9

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\notice.exe

    Filesize

    16KB

    MD5

    579961d94af1601374c82ec65a5078fc

    SHA1

    bc3b55defc1fe6d28b38ba3596f781d851af4dd7

    SHA256

    4f9a9635687f098cdf51ac288f8aea27d90d55c67a8924aa33232f98ef606731

    SHA512

    66cd24bba64f5fde711e7df8819783c4730cdb41bdd65c5ac4c9bb26ee93114cad147165543433226799e47444a518b7e6bc826d705b040e71333dec6ee19bc5

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\tjmy.exe

    Filesize

    251KB

    MD5

    4cfa7e59c42fbdcdae5e42e5be9d21f3

    SHA1

    8e2f7c667a843210798f5b74a298594d564f3d38

    SHA256

    77d1ae5ad595394e14ccbf4a7e3e8f1b46f43ead3f1a92c786584be9167823ff

    SHA512

    b9a54f89ff736e8bec9f6a3d04968780370de5c4a29c8142dfcd3fafb5cac94f722d952d536740a97136b103a4373d8c70ceef4ae018326fa9895cc568e9ff83

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\xun1ei.exe

    Filesize

    592KB

    MD5

    8ea4f25d9cf452ffb4fab3356a818940

    SHA1

    9fe4840426265b8f46f9e239f261e2804048f4a3

    SHA256

    c583c1e6e1e5957f228ab656b1daedf7939e310efbcc184411433c94b7bf2ff7

    SHA512

    04c4fbe5731d950ee5021fd1737c009c4d26a01f14388603708c8e2b13551f949a03219ceb473c9a746d6385a3eb9996df76d6fdbe473703e366761eddf31d9e

  • memory/1568-30-0x0000000000400000-0x0000000000496000-memory.dmp

    Filesize

    600KB

  • memory/1568-32-0x0000000000400000-0x0000000000496000-memory.dmp

    Filesize

    600KB