Analysis

  • max time kernel
    93s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2022, 17:03

General

  • Target

    f325dea4205398399ffacecd3a6708aedcab0ff6288b3efa6c477b8dfb4fa22e.exe

  • Size

    191KB

  • MD5

    5affdf5e22daf43369a8c57745e71958

  • SHA1

    5b037e3e6299c9e8399bc547a438b824c61998aa

  • SHA256

    f325dea4205398399ffacecd3a6708aedcab0ff6288b3efa6c477b8dfb4fa22e

  • SHA512

    63b2b394062f07269362806a6340e3352be697a802f59467918d1cfdaf152737e9684c168d8e948d9134fdd95d88209b4c3520190ee5a2f5cc02e431833e26dd

  • SSDEEP

    3072:lzNWMKKRZYc1ObK91C8sV6Xmoo4MEpYeptCGF81fc:lZuaObR8sVImPyYepAGr

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • Program crash 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f325dea4205398399ffacecd3a6708aedcab0ff6288b3efa6c477b8dfb4fa22e.exe
    "C:\Users\Admin\AppData\Local\Temp\f325dea4205398399ffacecd3a6708aedcab0ff6288b3efa6c477b8dfb4fa22e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Users\Admin\AppData\Local\Temp\1.exe
      "C:\Users\Admin\AppData\Local\Temp\1.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of SetWindowsHookEx
      PID:4860
  • C:\Windows\SysWOW64\seuwok.exe
    C:\Windows\SysWOW64\seuwok.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4976
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Suspicious use of UnmapMainImage
      PID:3884
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3884 -s 12
        3⤵
        • Program crash
        PID:2012
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3884 -ip 3884
    1⤵
      PID:1424

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\1.exe

            Filesize

            95.7MB

            MD5

            4e9b1773769dce4effa5635075f04084

            SHA1

            d30ba9240fc6d713c366b8ffaf1b7ebb1f5b864f

            SHA256

            105d786c36bad3a872de6f1f49c3c8ffe2dfcef3bb4a40dd020357752317a74e

            SHA512

            20847028c1a7afa2150f4580340fd389d50c3b37d2de35386bc6b31962c951fa465f6771e60f451eab1b8f9e6039b6fef7a37fb16ed74b85a7da577061ec4bdc

          • C:\Users\Admin\AppData\Local\Temp\1.exe

            Filesize

            95.7MB

            MD5

            4e9b1773769dce4effa5635075f04084

            SHA1

            d30ba9240fc6d713c366b8ffaf1b7ebb1f5b864f

            SHA256

            105d786c36bad3a872de6f1f49c3c8ffe2dfcef3bb4a40dd020357752317a74e

            SHA512

            20847028c1a7afa2150f4580340fd389d50c3b37d2de35386bc6b31962c951fa465f6771e60f451eab1b8f9e6039b6fef7a37fb16ed74b85a7da577061ec4bdc

          • C:\Windows\SysWOW64\seuwok.exe

            Filesize

            95.7MB

            MD5

            4e9b1773769dce4effa5635075f04084

            SHA1

            d30ba9240fc6d713c366b8ffaf1b7ebb1f5b864f

            SHA256

            105d786c36bad3a872de6f1f49c3c8ffe2dfcef3bb4a40dd020357752317a74e

            SHA512

            20847028c1a7afa2150f4580340fd389d50c3b37d2de35386bc6b31962c951fa465f6771e60f451eab1b8f9e6039b6fef7a37fb16ed74b85a7da577061ec4bdc

          • C:\Windows\SysWOW64\seuwok.exe

            Filesize

            95.7MB

            MD5

            4e9b1773769dce4effa5635075f04084

            SHA1

            d30ba9240fc6d713c366b8ffaf1b7ebb1f5b864f

            SHA256

            105d786c36bad3a872de6f1f49c3c8ffe2dfcef3bb4a40dd020357752317a74e

            SHA512

            20847028c1a7afa2150f4580340fd389d50c3b37d2de35386bc6b31962c951fa465f6771e60f451eab1b8f9e6039b6fef7a37fb16ed74b85a7da577061ec4bdc

          • memory/3884-138-0x0000000000400000-0x000000000040E000-memory.dmp

            Filesize

            56KB