Resubmissions

19/01/2022, 16:34

220119-t3a7tsbfa4 10

25/11/2021, 12:33

211125-pq7ytaaed7 8

Analysis

  • max time kernel
    165s
  • max time network
    174s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    19/01/2022, 16:34

General

  • Target

    df7f07f9b0c6ff27b0011f3a6daa5ca4b73f554b6a1ed319dce05919c3c4e18c.exe

  • Size

    6.2MB

  • MD5

    2d1155dba49fbdfa8d645b1f94ff9291

  • SHA1

    a8691fe37b1e2c7fe6c0c984cdfb74be79ce0d4e

  • SHA256

    df7f07f9b0c6ff27b0011f3a6daa5ca4b73f554b6a1ed319dce05919c3c4e18c

  • SHA512

    fdcc07d89e2dcbb6d5a770ab61f97a47d00777a8e8494936320d706b136d0c997b4d4fe88db8eed886f7fa5bb6cf255c7f42516cf9641109054d2ed3f01cae23

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 12 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Drops file in Windows directory 13 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\df7f07f9b0c6ff27b0011f3a6daa5ca4b73f554b6a1ed319dce05919c3c4e18c.exe
    "C:\Users\Admin\AppData\Local\Temp\df7f07f9b0c6ff27b0011f3a6daa5ca4b73f554b6a1ed319dce05919c3c4e18c.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1772
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\system32\msiexec.exe" /i "C:\Users\Admin\AppData\Roaming\PC SOFT\PST Perfomance Software 1.3.0.0\install\08B14CD\adv2.msi" AI_SETUPEXEPATH=C:\Users\Admin\AppData\Local\Temp\df7f07f9b0c6ff27b0011f3a6daa5ca4b73f554b6a1ed319dce05919c3c4e18c.exe SETUPEXEDIR=C:\Users\Admin\AppData\Local\Temp\ EXE_CMD_LINE="/exenoupdates /forcecleanup /wintime 1642583397 " AI_EUIMSI=""
      2⤵
      • Enumerates connected drives
      • Suspicious use of FindShellTrayWindow
      PID:3008
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p
    1⤵
      PID:1440
    • C:\Windows\system32\msiexec.exe
      C:\Windows\system32\msiexec.exe /V
      1⤵
      • Enumerates connected drives
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2076
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding A572A529F60B14EA50C2687097B1D209 C
        2⤵
        • Loads dropped DLL
        PID:332
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 020BA608F1A07773F487CA1A7753E5BE
        2⤵
        • Loads dropped DLL
        PID:1840
      • C:\Users\Admin\AppData\Roaming\PC SOFT\PST Perfomance Software\spacecore.exe
        "C:\Users\Admin\AppData\Roaming\PC SOFT\PST Perfomance Software\spacecore.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:3280
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalService
      1⤵
        PID:3736

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/3280-222-0x0000000000550000-0x0000000000A6F000-memory.dmp

              Filesize

              5.1MB