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Analysis

  • max time kernel
    96s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/09/2024, 16:55

General

  • Target

    f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe

  • Size

    2.3MB

  • MD5

    3acf0f8250e73855a38a3391f6839300

  • SHA1

    303df2cf9b94808dae96640115b9fa55c30f9637

  • SHA256

    f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171

  • SHA512

    8b70668c1bbb0d624836f50a3d61c951eeae4376ef99b410731f8b3d7debf29340caa6aa4260b81b220a97943311238e233eaf204cb4052c9e9106bf48bb576e

  • SSDEEP

    49152:3jvk2d9rJpNJ6jUFdXaDoIHmXMupzh72lxakn2YpHdy4ZBgIoooNe:3rkI9rSjA5aDo73pzF2bz3p9y4HgIoov

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 6 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 12 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies registry class 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
    "C:\Users\Admin\AppData\Local\Temp\f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1676
    • C:\Windows\SysWOW64\ctfmen.exe
      ctfmen.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2496
      • C:\Windows\SysWOW64\smnss.exe
        C:\Windows\system32\smnss.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Maps connected drives based on registry
        • Drops file in System32 directory
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:3640
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3640 -s 1780
          4⤵
          • Program crash
          PID:4052
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3640 -ip 3640
    1⤵
      PID:3228

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\SysWOW64\ctfmen.exe

      Filesize

      4KB

      MD5

      e3e41ff0b45d40324f70d27e8e6ee6cb

      SHA1

      c56d0aa94f7532b12f40094a371a3c0d3b98ce29

      SHA256

      c7fea055ed66593bcf08318763be9485342acb04151300668d3e0f024764994f

      SHA512

      f75f8918229325d786a53377200184abfed731530bdda4c8e33d83146cbb45bf81caafa6d9ad1ad614b081030b5f2450d618961f065c749477202eb28249016b

    • C:\Windows\SysWOW64\grcopy.dll

      Filesize

      2.3MB

      MD5

      b0b82985179373b1bfae7819c41075cb

      SHA1

      94d080d7f86113e28d8566f74212a910963095e7

      SHA256

      41e65044c187df85ed3e6722e4396c0b0034310f5a80594ef2dfbf7af407430e

      SHA512

      9f559e32c371a43e587cd0bfe1af0137a58a093e92a0569cbb47cad5b303f53fc8ac789e48ae7e1ea8689bc38ba8ff2c2d5585341de190b1ea6f9d52aba1236b

    • C:\Windows\SysWOW64\satornas.dll

      Filesize

      183B

      MD5

      b34c5527375cd05f2cdc4878488d982e

      SHA1

      32644a490f6f652e59157a8d37f8b02c4080694b

      SHA256

      dff059524c751cfedbd744c6a04721d678e2ad9481269c68a5447ee7b81090a2

      SHA512

      0c33461c19c5165514b80efd1d8c73a649054c771cdc94e9787fedf307629f070c1ed4d67a65c23e0dedbb3cbd77d111176ee7b164bf8469a6ece9386366b93c

    • C:\Windows\SysWOW64\shervans.dll

      Filesize

      8KB

      MD5

      e71d44a50dab97cc56aba47dbd3f736c

      SHA1

      450e31e738a5cff2917339182a50e4b1bc302e3c

      SHA256

      8de425a9b6d77baa8b9d88ce1f9d7dda32057c39fc39ab17845c47a4d8910f08

      SHA512

      5fbd89cd98345f5e52f0e6b8586167a13715592c2e918cde51e291a504d9d8725e7a5f499d1c066582f16b4eb110bf537572eb0223d73fb7f9ef348546e87f60

    • memory/1676-27-0x0000000000400000-0x0000000000DCE000-memory.dmp

      Filesize

      9.8MB

    • memory/1676-14-0x0000000010000000-0x000000001000D000-memory.dmp

      Filesize

      52KB

    • memory/1676-25-0x0000000010000000-0x000000001000D000-memory.dmp

      Filesize

      52KB

    • memory/1676-0-0x0000000000400000-0x0000000000DCE000-memory.dmp

      Filesize

      9.8MB

    • memory/1676-30-0x000000007FA70000-0x000000007FE41000-memory.dmp

      Filesize

      3.8MB

    • memory/1676-1-0x000000007FA70000-0x000000007FE41000-memory.dmp

      Filesize

      3.8MB

    • memory/2496-23-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/3640-33-0x000000007FA70000-0x000000007FE41000-memory.dmp

      Filesize

      3.8MB

    • memory/3640-39-0x0000000010000000-0x000000001000D000-memory.dmp

      Filesize

      52KB

    • memory/3640-32-0x0000000000400000-0x0000000000DCE000-memory.dmp

      Filesize

      9.8MB

    • memory/3640-41-0x0000000000400000-0x0000000000DCE000-memory.dmp

      Filesize

      9.8MB

    • memory/3640-42-0x000000007FA70000-0x000000007FE41000-memory.dmp

      Filesize

      3.8MB

    • memory/3640-44-0x0000000010000000-0x000000001000D000-memory.dmp

      Filesize

      52KB

    • memory/3640-43-0x0000000000400000-0x0000000000DCE000-memory.dmp

      Filesize

      9.8MB

    • memory/3640-45-0x0000000000400000-0x0000000000DCE000-memory.dmp

      Filesize

      9.8MB