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Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231025-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/11/2023, 12:03

General

  • Target

    7c8dd8652f58dc1be9d0f313dd7ed2c97fb698860d08ea0753e932fa2bb6e573.exe

  • Size

    223KB

  • MD5

    481ae3f07c96b7beac6e90a319beeb15

  • SHA1

    62c08dbdc7c4ccde919dcdcc4e689957bb7ae713

  • SHA256

    7c8dd8652f58dc1be9d0f313dd7ed2c97fb698860d08ea0753e932fa2bb6e573

  • SHA512

    3dce6ae29525f1308c94e35bf4d87983d49f2e30e0799c3474f291632212874212f6339766c72a5efed5f90ca5f84c27f5207dade4bf86468bce0e5d0f3ba719

  • SSDEEP

    6144:8wPSUONLNsuWA7koN+boRhZ2VUUaSaE0A6Xvd2:8OuW5o/oVU1r5w

Score
10/10
upx

Malware Config

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Downloads MZ/PE file
  • 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 1 IoCs
  • UPX packed file 5 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 11 IoCs
  • Drops file in Windows directory 3 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 1 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 12 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:604
      • C:\Windows\Logs\Dxpserver.exe
        "C:\Windows\Logs\Dxpserver.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 data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4700
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
      • Suspicious use of NtCreateUserProcessOtherParentProcess
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3292
      • C:\Users\Admin\AppData\Local\Temp\7c8dd8652f58dc1be9d0f313dd7ed2c97fb698860d08ea0753e932fa2bb6e573.exe
        "C:\Users\Admin\AppData\Local\Temp\7c8dd8652f58dc1be9d0f313dd7ed2c97fb698860d08ea0753e932fa2bb6e573.exe"
        2⤵
        • Checks computer location settings
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4688
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c timeout /t 1 & del /Q /F "C:\Users\Admin\AppData\Local\Temp\7c8dd8652f58dc1be9d0f313dd7ed2c97fb698860d08ea0753e932fa2bb6e573.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:896
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 1
            4⤵
            • Delays execution with timeout.exe
            PID:4252

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\8341dcf0.tmp

      Filesize

      14.1MB

      MD5

      a7ef23896bd75e4cf69595d10cac31ac

      SHA1

      6882cc47f35317decd34213a550473c6aa83a908

      SHA256

      3148f6ce8f8cd6246cb222715925a6a6066d573e92bf5441a8f191884870810c

      SHA512

      1f8efa9855b5f9b768a2cd445986de7f5c4a2adec31afa5b92530651a8f99fcb43f25eaa2469c5ea7c1e7e04b3a5fd41f61bc1b322d9489ad11494ad4164f08c

    • C:\Windows\Logs\Dxpserver.exe

      Filesize

      310KB

      MD5

      6344f1a7d50da5732c960e243c672165

      SHA1

      b6d0236f79d4f988640a8445a5647aff5b5410f7

      SHA256

      b1081651ac33610824e2088ff64d1655993dd3d6073af1e5ffe0b4a0027f502f

      SHA512

      73f6fa01b880e6619fafa065c171bd0a2b7b2d908762b5aca15f2b8d856b5501b3884e3566ef9b8032c8cbf9bb15116e60c22fded4656c8857c974cda4213d65

    • C:\Windows\Logs\Dxpserver.exe

      Filesize

      310KB

      MD5

      6344f1a7d50da5732c960e243c672165

      SHA1

      b6d0236f79d4f988640a8445a5647aff5b5410f7

      SHA256

      b1081651ac33610824e2088ff64d1655993dd3d6073af1e5ffe0b4a0027f502f

      SHA512

      73f6fa01b880e6619fafa065c171bd0a2b7b2d908762b5aca15f2b8d856b5501b3884e3566ef9b8032c8cbf9bb15116e60c22fded4656c8857c974cda4213d65

    • memory/604-17-0x000001D0A2850000-0x000001D0A2853000-memory.dmp

      Filesize

      12KB

    • memory/604-20-0x000001D0A2870000-0x000001D0A2871000-memory.dmp

      Filesize

      4KB

    • memory/604-19-0x000001D0A2890000-0x000001D0A28B8000-memory.dmp

      Filesize

      160KB

    • memory/3292-2-0x0000000007B40000-0x0000000007B43000-memory.dmp

      Filesize

      12KB

    • memory/3292-4-0x00000000094B0000-0x00000000095A9000-memory.dmp

      Filesize

      996KB

    • memory/3292-1-0x0000000007B40000-0x0000000007B43000-memory.dmp

      Filesize

      12KB

    • memory/3292-58-0x0000000007B60000-0x0000000007B61000-memory.dmp

      Filesize

      4KB

    • memory/3292-56-0x00000000094B0000-0x00000000095A9000-memory.dmp

      Filesize

      996KB

    • memory/3292-3-0x0000000007B40000-0x0000000007B43000-memory.dmp

      Filesize

      12KB

    • memory/3292-6-0x0000000007B60000-0x0000000007B61000-memory.dmp

      Filesize

      4KB

    • memory/4688-55-0x00000000003D0000-0x000000000043E000-memory.dmp

      Filesize

      440KB

    • memory/4688-53-0x00000000003D0000-0x000000000043E000-memory.dmp

      Filesize

      440KB

    • memory/4688-0-0x00000000003D0000-0x000000000043E000-memory.dmp

      Filesize

      440KB

    • memory/4688-52-0x00000000003D0000-0x000000000043E000-memory.dmp

      Filesize

      440KB

    • memory/4700-54-0x000001A8F5900000-0x000001A8F5902000-memory.dmp

      Filesize

      8KB

    • memory/4700-62-0x000001A8F68C0000-0x000001A8F6A85000-memory.dmp

      Filesize

      1.8MB

    • memory/4700-13-0x00007FF937190000-0x00007FF9371A0000-memory.dmp

      Filesize

      64KB

    • memory/4700-14-0x000001A8F5750000-0x000001A8F581B000-memory.dmp

      Filesize

      812KB

    • memory/4700-57-0x000001A8F5910000-0x000001A8F5911000-memory.dmp

      Filesize

      4KB

    • memory/4700-15-0x000001A8F3F80000-0x000001A8F3F81000-memory.dmp

      Filesize

      4KB

    • memory/4700-59-0x000001A8F5920000-0x000001A8F5921000-memory.dmp

      Filesize

      4KB

    • memory/4700-60-0x000001A8F5750000-0x000001A8F581B000-memory.dmp

      Filesize

      812KB

    • memory/4700-61-0x000001A8F3F80000-0x000001A8F3F81000-memory.dmp

      Filesize

      4KB

    • memory/4700-51-0x00007FF937190000-0x00007FF9371A0000-memory.dmp

      Filesize

      64KB

    • memory/4700-63-0x000001A8F5910000-0x000001A8F5912000-memory.dmp

      Filesize

      8KB

    • memory/4700-64-0x000001A8F5970000-0x000001A8F5971000-memory.dmp

      Filesize

      4KB

    • memory/4700-12-0x000001A8F5750000-0x000001A8F581B000-memory.dmp

      Filesize

      812KB

    • memory/4700-10-0x000001A8F3CA0000-0x000001A8F3CA3000-memory.dmp

      Filesize

      12KB

    • memory/4700-71-0x000001A8F5920000-0x000001A8F5921000-memory.dmp

      Filesize

      4KB

    • memory/4700-74-0x000001A8F68C0000-0x000001A8F6A85000-memory.dmp

      Filesize

      1.8MB

    • memory/4700-77-0x000001A8F5910000-0x000001A8F5911000-memory.dmp

      Filesize

      4KB

    • memory/4700-78-0x000001A8F5930000-0x000001A8F5931000-memory.dmp

      Filesize

      4KB

    • memory/4700-81-0x000001A8F68C0000-0x000001A8F6A85000-memory.dmp

      Filesize

      1.8MB

    • memory/4700-82-0x000001A8F5910000-0x000001A8F5912000-memory.dmp

      Filesize

      8KB