Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/10/2023, 07:24

General

  • Target

    9496334706480b9909d07a2bd70c336f037579c1ad8a4837fb53579fec7d36a3.exe

  • Size

    3.9MB

  • MD5

    a210ccf78e948bcb7d49eb48352a3e03

  • SHA1

    08772750be2687ddb4c391ab9d7d32e3968ec1e6

  • SHA256

    9496334706480b9909d07a2bd70c336f037579c1ad8a4837fb53579fec7d36a3

  • SHA512

    9b984cb39a5cdc65fc6e20292c258f6c746de2b5072239e6f09d3aec8a2f202089db650c5c66f895a9d138aaf875761221163e3b65a033d281b11d86d356023d

  • SSDEEP

    49152:wTGkQH5QZuTtS0rQMYOQ+q8PEDTG4QDTGHQI9KFeM3:wKkEWsM0r1QCsK4WKHn0Fe2

Score
8/10
upx

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • UPX packed file 8 IoCs

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

  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Drops file in System32 directory 16 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Delays execution with timeout.exe 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: LoadsDriver 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:584
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3164
      • C:\Users\Admin\AppData\Local\Temp\9496334706480b9909d07a2bd70c336f037579c1ad8a4837fb53579fec7d36a3.exe
        "C:\Users\Admin\AppData\Local\Temp\9496334706480b9909d07a2bd70c336f037579c1ad8a4837fb53579fec7d36a3.exe"
        2⤵
        • Checks computer location settings
        • Drops file in System32 directory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2848
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c timeout /t 1 & del /Q /F "C:\Users\Admin\AppData\Local\Temp\9496334706480b9909d07a2bd70c336f037579c1ad8a4837fb53579fec7d36a3.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3152
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 1
            4⤵
            • Delays execution with timeout.exe
            PID:5072
      • C:\ProgramData\Microsoft\mcbuilder.exe
        "C:\ProgramData\Microsoft\mcbuilder.exe"
        2⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Checks SCSI registry key(s)
        • Modifies Internet Explorer settings
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4852
    • C:\Windows\Syswow64\17898304
      C:\Windows\Syswow64\17898304
      1⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3752
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout /t 1 & del /Q /F "C:\Windows\Syswow64\17898304"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4272
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 1
          3⤵
          • Delays execution with timeout.exe
          PID:3244

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\Microsoft\mcbuilder.exe

      Filesize

      92KB

      MD5

      9ee06f45cf8d8154fa53bc0b0397e2d2

      SHA1

      2cd73f065f259027610bf59b4dd6448e90c5104a

      SHA256

      b139d09d95e5a1de02a00324054fd3db7d7e874e881c2420441f2576496f8695

      SHA512

      49666ef990d4a31b268fa7c7de8ac12cf0f8f00199fe982eecb92b190a55b8c0f33f1c6f806a1dbc8f167c5e5877a0c7adf2143006eb4c83cfdf71758f7e1820

    • C:\Windows\403c50

      Filesize

      906B

      MD5

      e29eb5a467704360d087e4940463769d

      SHA1

      99c37c9f9571757a93e2595ef775b7ccb5b7c3e5

      SHA256

      e11533f9e5ca4664e331677cd1211c34c9533774bd16bc04e55657e5ea4537d4

      SHA512

      f75c3b3f9c712b2a03683ae7369ed8bb3c111fab98724ed0cade0a92a4c4486f714b22a081a3bce17366e45e476c68962fb03426ac52a43137d9c2ddcd172036

    • C:\Windows\SysWOW64\17898304

      Filesize

      3.9MB

      MD5

      28c8391a453f42fafca43012c2e662ea

      SHA1

      eb28ccc8815a298c37e159f8a75e5aafe563dcdd

      SHA256

      5015eb65d51b79813d46790a8bcb1e147e1acd30df0cfe66fd5bd7e914404b1c

      SHA512

      9c22521a4a060975e92b174dfa8d0f63db0658ef8239eb3ddd0af9b495e378fdbdaae7318b0194e22a78fc6dfa7d7c536506ff896c4b25122abaa8e1409d7382

    • C:\Windows\SysWOW64\17898304

      Filesize

      3.9MB

      MD5

      28c8391a453f42fafca43012c2e662ea

      SHA1

      eb28ccc8815a298c37e159f8a75e5aafe563dcdd

      SHA256

      5015eb65d51b79813d46790a8bcb1e147e1acd30df0cfe66fd5bd7e914404b1c

      SHA512

      9c22521a4a060975e92b174dfa8d0f63db0658ef8239eb3ddd0af9b495e378fdbdaae7318b0194e22a78fc6dfa7d7c536506ff896c4b25122abaa8e1409d7382

    • memory/584-77-0x0000024F9FB50000-0x0000024F9FB51000-memory.dmp

      Filesize

      4KB

    • memory/584-36-0x0000024F9FB50000-0x0000024F9FB51000-memory.dmp

      Filesize

      4KB

    • memory/584-35-0x0000024F9FB10000-0x0000024F9FB38000-memory.dmp

      Filesize

      160KB

    • memory/584-32-0x0000024F9FB00000-0x0000024F9FB03000-memory.dmp

      Filesize

      12KB

    • memory/2848-44-0x0000000000180000-0x0000000000209000-memory.dmp

      Filesize

      548KB

    • memory/2848-34-0x0000000000180000-0x0000000000209000-memory.dmp

      Filesize

      548KB

    • memory/2848-0-0x0000000000180000-0x0000000000209000-memory.dmp

      Filesize

      548KB

    • memory/3164-20-0x0000000002B70000-0x0000000002B73000-memory.dmp

      Filesize

      12KB

    • memory/3164-26-0x0000000002B90000-0x0000000002B91000-memory.dmp

      Filesize

      4KB

    • memory/3164-24-0x0000000008650000-0x0000000008747000-memory.dmp

      Filesize

      988KB

    • memory/3164-17-0x0000000002B70000-0x0000000002B73000-memory.dmp

      Filesize

      12KB

    • memory/3164-67-0x0000000002B90000-0x0000000002B91000-memory.dmp

      Filesize

      4KB

    • memory/3752-73-0x0000000000B10000-0x0000000000B99000-memory.dmp

      Filesize

      548KB

    • memory/3752-3-0x0000000000B10000-0x0000000000B99000-memory.dmp

      Filesize

      548KB

    • memory/3752-37-0x0000000000B10000-0x0000000000B99000-memory.dmp

      Filesize

      548KB

    • memory/4852-68-0x00007FF9840F0000-0x00007FF984100000-memory.dmp

      Filesize

      64KB

    • memory/4852-81-0x00000238694B0000-0x00000238694B1000-memory.dmp

      Filesize

      4KB

    • memory/4852-72-0x0000023867AB0000-0x0000023867B7B000-memory.dmp

      Filesize

      812KB

    • memory/4852-27-0x0000023867AB0000-0x0000023867B7B000-memory.dmp

      Filesize

      812KB

    • memory/4852-74-0x00000238694A0000-0x00000238694A1000-memory.dmp

      Filesize

      4KB

    • memory/4852-75-0x0000023869370000-0x0000023869371000-memory.dmp

      Filesize

      4KB

    • memory/4852-76-0x00000238694A0000-0x00000238694A1000-memory.dmp

      Filesize

      4KB

    • memory/4852-29-0x0000023867AB0000-0x0000023867B7B000-memory.dmp

      Filesize

      812KB

    • memory/4852-78-0x00000238694A0000-0x00000238694A1000-memory.dmp

      Filesize

      4KB

    • memory/4852-79-0x0000023869490000-0x0000023869491000-memory.dmp

      Filesize

      4KB

    • memory/4852-80-0x00000238694B0000-0x00000238694BF000-memory.dmp

      Filesize

      60KB

    • memory/4852-30-0x00007FF9840F0000-0x00007FF984100000-memory.dmp

      Filesize

      64KB

    • memory/4852-82-0x00000238694C0000-0x00000238694C1000-memory.dmp

      Filesize

      4KB

    • memory/4852-83-0x0000023869A50000-0x0000023869AF0000-memory.dmp

      Filesize

      640KB

    • memory/4852-84-0x00000238694A0000-0x00000238694A2000-memory.dmp

      Filesize

      8KB

    • memory/4852-85-0x0000023869AF0000-0x0000023869AF1000-memory.dmp

      Filesize

      4KB

    • memory/4852-86-0x00000238694A0000-0x00000238694A1000-memory.dmp

      Filesize

      4KB

    • memory/4852-87-0x0000023869AF0000-0x0000023869AF1000-memory.dmp

      Filesize

      4KB

    • memory/4852-88-0x0000023869AF0000-0x0000023869AF1000-memory.dmp

      Filesize

      4KB

    • memory/4852-89-0x0000023869A50000-0x0000023869AF0000-memory.dmp

      Filesize

      640KB

    • memory/4852-90-0x00000238694A0000-0x00000238694A2000-memory.dmp

      Filesize

      8KB

    • memory/4852-91-0x0000023869E50000-0x0000023869E51000-memory.dmp

      Filesize

      4KB

    • memory/4852-92-0x0000023869E60000-0x0000023869E61000-memory.dmp

      Filesize

      4KB