Analysis

  • max time kernel
    120s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10/10/2024, 09:01

General

  • Target

    7b7303b9ad81c63fb19b82c45cf5de739b487cdb905fa7d3713d705d01446ad2N.exe

  • Size

    88KB

  • MD5

    10a5b6cfde5a9d80e7c8759fd0287c20

  • SHA1

    0b84a7b7c169eb10969783dc755c1d33f137a3b7

  • SHA256

    7b7303b9ad81c63fb19b82c45cf5de739b487cdb905fa7d3713d705d01446ad2

  • SHA512

    f16a5fa404fdd012c1be93a281ae6bcf43917a0ec3cdf954a98b2274930abc3e2660e58cdd8072af4318b127ccf290c8926be280801d15b7f8931c48a7d88778

  • SSDEEP

    1536:ahUDofByDJWbMGcEFLPEPKOJUsy1+VMA:aIofBHbKMP0PvMA

Malware Config

Signatures

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • UPX packed file 7 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Modifies system certificate store 2 TTPs 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7b7303b9ad81c63fb19b82c45cf5de739b487cdb905fa7d3713d705d01446ad2N.exe
    "C:\Users\Admin\AppData\Local\Temp\7b7303b9ad81c63fb19b82c45cf5de739b487cdb905fa7d3713d705d01446ad2N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3004
    • C:\Users\Admin\AppData\Local\Temp\7b7303b9ad81c63fb19b82c45cf5de739b487cdb905fa7d3713d705d01446ad2N.exe
      "C:\Users\Admin\AppData\Local\Temp\7b7303b9ad81c63fb19b82c45cf5de739b487cdb905fa7d3713d705d01446ad2N.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\GCYXB.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1304
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Video Driver" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\config\explorer.exe" /f
          4⤵
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          PID:760
      • C:\Users\Admin\AppData\Roaming\config\explorer.exe
        "C:\Users\Admin\AppData\Roaming\config\explorer.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1556
        • C:\Users\Admin\AppData\Roaming\config\explorer.exe
          "C:\Users\Admin\AppData\Roaming\config\explorer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2776
        • C:\Users\Admin\AppData\Roaming\config\explorer.exe
          "C:\Users\Admin\AppData\Roaming\config\explorer.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2140
          • C:\Users\Admin\AppData\Roaming\config\explorer.exe
            "C:\Users\Admin\AppData\Roaming\config\explorer.exe"
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Modifies system certificate store
            PID:1680

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

          Filesize

          342B

          MD5

          a250d5542501402aefed7310243f9bc4

          SHA1

          eae9e81a51a4c99acfc057d752e25831afde87fe

          SHA256

          028f0dcadc45659c4b19768f9e462bb5b71ecf630a65eed91acc688585348eb5

          SHA512

          83f1cdc8c48a5ba9a189c7f91e1b347c5e0fcd0a098dcf8effcc5a5bb859f242ace50a64f671cd015f7a0d3387e6b6d612332ff0f7278b591953c39972b2c8fd

        • C:\Users\Admin\AppData\Local\Temp\CabD0B9.tmp

          Filesize

          70KB

          MD5

          49aebf8cbd62d92ac215b2923fb1b9f5

          SHA1

          1723be06719828dda65ad804298d0431f6aff976

          SHA256

          b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

          SHA512

          bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

          Filesize

          149B

          MD5

          fc1798b7c7938454220fda837a76f354

          SHA1

          b232912930b2bc24ff18bf7ecd58f872bbe01ea0

          SHA256

          7f0a5917b5aca9c5beb153aad0ef95bf0aeafb83768da5b086c3f029ba42d7c8

          SHA512

          d1abdd45a8e5d33893b9d19424174a07feed145d2e6b4be318ab5fde503f850579a4a101a010f30e16ecde2c7123f45357a8341214655321ee0f0097ca911331

        • C:\Users\Admin\AppData\Local\Temp\TarD0DB.tmp

          Filesize

          181KB

          MD5

          4ea6026cf93ec6338144661bf1202cd1

          SHA1

          a1dec9044f750ad887935a01430bf49322fbdcb7

          SHA256

          8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

          SHA512

          6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

        • \Users\Admin\AppData\Roaming\config\explorer.exe

          Filesize

          88KB

          MD5

          4c0b3c56b6054c7c14021f1a15f3d09c

          SHA1

          b1b65574cf11a52e91837d91541b02259f7d938a

          SHA256

          6b1738a30377f1b9fbb2e85cc63d0b4e57e06232837a89b0e50ec75d89ab4ecf

          SHA512

          80fb25704e5921037e9d514bb27477835fd29e416318509a7a6b591881281f920c106857e7af6841e2606515f72bb76ae2030f963cb3ce4e27ef91f9fb0f4884

        • memory/2004-320-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2004-137-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2004-139-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2004-141-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2004-142-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2004-143-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2004-145-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2004-135-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2140-315-0x0000000000400000-0x0000000000403000-memory.dmp

          Filesize

          12KB

        • memory/2140-333-0x0000000000400000-0x0000000000403000-memory.dmp

          Filesize

          12KB

        • memory/2776-469-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/3004-98-0x0000000001C30000-0x0000000001C31000-memory.dmp

          Filesize

          4KB

        • memory/3004-134-0x0000000002440000-0x0000000002441000-memory.dmp

          Filesize

          4KB

        • memory/3004-100-0x0000000001C40000-0x0000000001C41000-memory.dmp

          Filesize

          4KB

        • memory/3004-90-0x0000000001D00000-0x0000000001D01000-memory.dmp

          Filesize

          4KB

        • memory/3004-74-0x0000000001CD0000-0x0000000001CD1000-memory.dmp

          Filesize

          4KB

        • memory/3004-2-0x00000000001C0000-0x00000000001C1000-memory.dmp

          Filesize

          4KB

        • memory/3004-53-0x0000000001C50000-0x0000000001C51000-memory.dmp

          Filesize

          4KB

        • memory/3004-116-0x0000000001CA0000-0x0000000001CA1000-memory.dmp

          Filesize

          4KB

        • memory/3004-54-0x0000000001CA0000-0x0000000001CA1000-memory.dmp

          Filesize

          4KB

        • memory/3004-38-0x0000000001C30000-0x0000000001C31000-memory.dmp

          Filesize

          4KB

        • memory/3004-39-0x0000000001C40000-0x0000000001C41000-memory.dmp

          Filesize

          4KB

        • memory/3004-114-0x0000000001C50000-0x0000000001C51000-memory.dmp

          Filesize

          4KB