Analysis

  • max time kernel
    90s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-07-2023 11:16

General

  • Target

    3d1525f10d9036exeexe_JC.exe

  • Size

    2.5MB

  • MD5

    3d1525f10d9036147e22460c228e398c

  • SHA1

    f5e55f8074772e0daa29150e44b29752193bc4ef

  • SHA256

    b03b93a8fadd94780f5a311032faa2560c7e4c3b8de3dbbb7f5339a7d96a72de

  • SHA512

    996f0eb69d5a9d6ae8bae51d7d429e32a2c4dedd8820cf6b9200abee474cd5c182606262d97cd9abb6eae1cac42928c6577ef53aa93f10b1f363e712f064ae13

  • SSDEEP

    49152:JuIIKtofs2hPd2l177BTK2VbDsar1YDjE:Jjsfs2hPIl1//

Score
7/10
upx

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 4 IoCs

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

  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 1 IoCs
  • Program crash 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3d1525f10d9036exeexe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\3d1525f10d9036exeexe_JC.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2544
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 736
      2⤵
      • Program crash
      PID:1428
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 744
      2⤵
      • Program crash
      PID:2968
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2544 -ip 2544
    1⤵
      PID:4252
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2544 -ip 2544
      1⤵
        PID:5000

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files\Common Files\System\symsrv.dll

        Filesize

        67KB

        MD5

        7574cf2c64f35161ab1292e2f532aabf

        SHA1

        14ba3fa927a06224dfe587014299e834def4644f

        SHA256

        de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

        SHA512

        4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

      • C:\Program Files\Common Files\System\symsrv.dll

        Filesize

        67KB

        MD5

        7574cf2c64f35161ab1292e2f532aabf

        SHA1

        14ba3fa927a06224dfe587014299e834def4644f

        SHA256

        de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

        SHA512

        4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

      • memory/2544-137-0x0000000010000000-0x0000000010030000-memory.dmp

        Filesize

        192KB

      • memory/2544-143-0x0000000000DD0000-0x000000000103A000-memory.dmp

        Filesize

        2.4MB

      • memory/2544-144-0x0000000000DD0000-0x000000000103A000-memory.dmp

        Filesize

        2.4MB

      • memory/2544-146-0x0000000010000000-0x0000000010030000-memory.dmp

        Filesize

        192KB