Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    02/12/2021, 23:27

General

  • Target

    DOC#848#158945.msi

  • Size

    264KB

  • MD5

    c5b778c6e4b1410a079457c50193a0d5

  • SHA1

    6abd263dbc4487e80db003eaf66f1843792eab0b

  • SHA256

    50356478881e585ac8020c4e471f7494aef7cebae0bc2b98b6c106fd3b6c5ddf

  • SHA512

    2a6e412743f2b35f73e74a4846130a2ac0703ee479d76e4132bd2b1f2c5a12b000aafccb40a2015543d5e58cf7dad1f707ac99b260aa43fa16939d3022eba6fe

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Loads dropped DLL 2 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 4 IoCs
  • Script User-Agent 1 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\DOC#848#158945.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1588
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1656
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DBB17D4EB7FC33E10EAAA5F3B6891771
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      PID:540

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/540-58-0x0000000075731000-0x0000000075733000-memory.dmp

    Filesize

    8KB

  • memory/1588-55-0x000007FEFBE91000-0x000007FEFBE93000-memory.dmp

    Filesize

    8KB