Analysis

  • max time kernel
    139s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    06-02-2022 13:04

General

  • Target

    490548ca84fb78e8d332bcde20b37576b2a532e388232e756d9c746b6baad5bb.msi

  • Size

    2.2MB

  • MD5

    3a8af2810c28d0eac73f55fb5efb63c2

  • SHA1

    fcc72c86caafc640c7ca831bf9e1fbb2341f6895

  • SHA256

    490548ca84fb78e8d332bcde20b37576b2a532e388232e756d9c746b6baad5bb

  • SHA512

    cc490c53a66e13548a20e301616c09ab1e1fabc25b64000b0f9c13dfc570d43c8f4b259f431147ab6dc60a33a837dafb0e356f330fdc796552c33d61232de839

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 4 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 9 IoCs
  • Adds Run key to start application 2 TTPs 1 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 15 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 62 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\490548ca84fb78e8d332bcde20b37576b2a532e388232e756d9c746b6baad5bb.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1284
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1680
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding A7D0B763D724126EC9150EADDF527DBB
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      PID:1564
    • C:\Windows\Installer\MSI306D.tmp
      "C:\Windows\Installer\MSI306D.tmp" /DontWait "C:\Users\Admin\AppData\Roaming\eletronics\Consulta Eletronica\Escudo.exe"
      2⤵
      • Executes dropped EXE
      PID:664
  • C:\Users\Admin\AppData\Roaming\eletronics\Consulta Eletronica\Escudo.exe
    "C:\Users\Admin\AppData\Roaming\eletronics\Consulta Eletronica\Escudo.exe"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:1668

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/664-76-0x0000000000260000-0x0000000000262000-memory.dmp

    Filesize

    8KB

  • memory/1284-55-0x000007FEFB5D1000-0x000007FEFB5D3000-memory.dmp

    Filesize

    8KB

  • memory/1564-57-0x00000000756C1000-0x00000000756C3000-memory.dmp

    Filesize

    8KB