Analysis

  • max time kernel
    117s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    16/12/2023, 01:56

General

  • Target
    8b8b26e8bfb7b546d6298536f47b4020.exe
  • Size 452KB
  • Sample231216-ccn8bsbdf7
  • SHA256 38b996babe91a3ea4fac1e349e0723d40621107dfd34f14bd2d4764fbb695b31
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 9 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b8b26e8bfb7b546d6298536f47b4020.exe
    "C:\Users\Admin\AppData\Local\Temp\8b8b26e8bfb7b546d6298536f47b4020.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2ft6863.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2ft6863.exe
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Loads dropped DLL
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:2860
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /c schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2748
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST
          4⤵
          • Creates scheduled task(s)
          PID:2672
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /c schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2920
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
          4⤵
          • Creates scheduled task(s)
          PID:2812
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2860 -s 2388
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:880

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 14f4d071e7135f8cb1c1d963e910e84aa6fc0092957250302c8ad827c1fe1110
        • MD5 SHA1 SHA512

        Cab8DD0.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Cab8DD0.tmp
        • Size 65KB
        • SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
        • MD5 SHA1 SHA512 SSDEEP

        Tar8EDC.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Tar8EDC.tmp
        • Size 171KB
        • SHA256 4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
        • MD5 SHA1 SHA512 SSDEEP

        OSwp1aJwgiPmWeb Data

        • Path C:\Users\Admin\AppData\Local\Temp\tempAVSy530lopY0xzc\OSwp1aJwgiPmWeb Data
        • Size 92KB
        • SHA256 1e9bd8064ca87d8441e2702005ef8df9a3647d5542740737abb8a70be7ec9512
        • MD5 SHA1 SHA512 SSDEEP

        2ft6863.exe

        • Path \Users\Admin\AppData\Local\Temp\IXP000.TMP\2ft6863.exe
        • Size 802KB
        • SHA256 25b01c01be6785c8779e7a68dbbc002e1228dda16874aad8f552b39f63cb2bea
        • MD5 SHA1 SHA512 SSDEEP

        sqlite3.dll

        • Path \Users\Admin\AppData\Local\Temp\tempAVSy530lopY0xzc\sqlite3.dll
        • Size 791KB
        • SHA256 0c7cd52abdb6eb3e556d81caac398a127495e4a251ef600e6505a81385a1982d
        • MD5 SHA1 SHA512 SSDEEP

        memory/2860-10-0x00000000008B0000-0x000000000097E000-memory.dmp