Analysis

  • max time kernel
    0s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2023, 19:12

General

  • Target
    file.exe
  • Size 1.6MB
  • Sample231206-xwh6mscb37
  • SHA256 199566821954625ef7949f29b97f87e239182ffe295df4ce035b60f7ed7ed251
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • 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.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:3908
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:4688
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:224
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3908 -s 1696
      2⤵
      • Program crash
      PID:3464
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:3080
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:4816
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3908 -ip 3908
        1⤵
          PID:1832

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              OfficeTrackerNMP131.exe

              • Path C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe
              • Size 1.6MB
              • SHA256 199566821954625ef7949f29b97f87e239182ffe295df4ce035b60f7ed7ed251
              • MD5 SHA1 SHA512 SSDEEP

              information.txt

              • Path C:\Users\Admin\AppData\Local\Temp\grandUIAjl741YUSHLE2Q\information.txt
              • Size 3KB
              • SHA256 bcd23a29e266b4238f594b6d682014417bfd70c6077d08184e454f65ca2f5426
              • MD5 SHA1 SHA512