Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    11/01/2022, 21:15

General

  • Target

    e9c0fcf1b6dc4b895ed5ad5c4a6f3aeed343055584f7be6a478f525a27a56d8d.msi

  • Size

    4.0MB

  • MD5

    9c29559b0910132668be272b7228fb5b

  • SHA1

    57f3e22aba505bcc671d6b1ac54068c0cdead4b0

  • SHA256

    e9c0fcf1b6dc4b895ed5ad5c4a6f3aeed343055584f7be6a478f525a27a56d8d

  • SHA512

    143392c71a7cd435e454b79bdcb89c2388a6462111f87bac9118e2189792be24b9bd768f28a5d47042f1e984e133e83d8fc2e0f5dc65746e6a248f482814efde

Score
8/10
upx

Malware Config

Signatures

  • Blocklisted process makes network request 2 IoCs
  • Executes dropped EXE 2 IoCs
  • UPX packed file 1 IoCs

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

  • Drops startup file 1 IoCs
  • Loads dropped DLL 25 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Drops file in Windows directory 10 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Script User-Agent 3 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\e9c0fcf1b6dc4b895ed5ad5c4a6f3aeed343055584f7be6a478f525a27a56d8d.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1292
  • 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:1472
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 9948DCFCF4BAC6F5915117DB38CF12A7
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1092
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        "C:\Windows\System32\Wbem\WMIC.exe" process call create 'C:\Users\Admin\wIKiEdiJMntJNBE\CaCvIferOPsSthy.exe'
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1388
  • C:\Users\Admin\wIKiEdiJMntJNBE\CaCvIferOPsSthy.exe
    C:\Users\Admin\wIKiEdiJMntJNBE\CaCvIferOPsSthy.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:892
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C schtasks /CREATE /TN "OneDrive " /TR C:\\Users\Admin\wIKiEdiJMntJNBE\CaCvIferOPsSthy.exe /SC minute /MO 2 /IT /RU %USERNAME%
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1320
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /CREATE /TN "OneDrive " /TR C:\\Users\Admin\wIKiEdiJMntJNBE\CaCvIferOPsSthy.exe /SC minute /MO 2 /IT /RU Admin
        3⤵
        • Creates scheduled task(s)
        PID:308
    • C:\Users\Admin\kYWjG A98L\XENCXPGf.exe
      "C:\Users\Admin\kYWjG A98L\XENCXPGf.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:1616

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/892-97-0x0000000003371000-0x00000000037F7000-memory.dmp

    Filesize

    4.5MB

  • memory/892-91-0x0000000000340000-0x0000000000444000-memory.dmp

    Filesize

    1.0MB

  • memory/892-98-0x0000000003370000-0x00000000034CC000-memory.dmp

    Filesize

    1.4MB

  • memory/892-99-0x0000000000670000-0x0000000000671000-memory.dmp

    Filesize

    4KB

  • memory/1092-64-0x0000000000B20000-0x0000000000B21000-memory.dmp

    Filesize

    4KB

  • memory/1092-57-0x0000000076151000-0x0000000076153000-memory.dmp

    Filesize

    8KB

  • memory/1292-54-0x000007FEFBC11000-0x000007FEFBC13000-memory.dmp

    Filesize

    8KB

  • memory/1616-126-0x0000000001390000-0x00000000013B7000-memory.dmp

    Filesize

    156KB

  • memory/1616-130-0x0000000074CC0000-0x0000000074CCD000-memory.dmp

    Filesize

    52KB

  • memory/1616-131-0x0000000074C10000-0x0000000074C38000-memory.dmp

    Filesize

    160KB

  • memory/1616-133-0x0000000074C00000-0x0000000074C0C000-memory.dmp

    Filesize

    48KB

  • memory/1616-134-0x0000000000270000-0x0000000000274000-memory.dmp

    Filesize

    16KB

  • memory/1616-136-0x00000000003F0000-0x00000000003F3000-memory.dmp

    Filesize

    12KB

  • memory/1616-137-0x0000000000270000-0x0000000000274000-memory.dmp

    Filesize

    16KB

  • memory/1616-135-0x0000000074BB1000-0x0000000074BB5000-memory.dmp

    Filesize

    16KB

  • memory/1616-132-0x00000000013C0000-0x00000000013DC000-memory.dmp

    Filesize

    112KB

  • memory/1616-138-0x0000000000270000-0x0000000000274000-memory.dmp

    Filesize

    16KB

  • memory/1616-128-0x0000000074C60000-0x0000000074CB7000-memory.dmp

    Filesize

    348KB

  • memory/1616-140-0x00000000013F0000-0x00000000013F1000-memory.dmp

    Filesize

    4KB

  • memory/1616-142-0x0000000005641000-0x0000000005B4E000-memory.dmp

    Filesize

    5.1MB

  • memory/1616-117-0x0000000001280000-0x0000000001384000-memory.dmp

    Filesize

    1.0MB