Analysis

  • max time kernel
    154s
  • max time network
    162s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    13-02-2022 10:45

General

  • Target

    8aa574ba92ef3177d786c519d9f2acc86aa7d16afd44819cb23eddd28720776c.msi

  • Size

    280KB

  • MD5

    2e81921e3cdeddd24b74f59039bde7a0

  • SHA1

    45950947f0cf45583514eebc95a361e55fd479b8

  • SHA256

    8aa574ba92ef3177d786c519d9f2acc86aa7d16afd44819cb23eddd28720776c

  • SHA512

    287fb25c2f96df4cca630deb02e64b021395cb46dddc8fe40d833b1db2bc7c25e379824942e17bf1695c036f6115c5cb518c2811e7b5c4a087fd6914b4ab0c5f

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 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
  • Modifies Internet Explorer settings 1 TTPs 50 IoCs
  • Script User-Agent 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 52 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\8aa574ba92ef3177d786c519d9f2acc86aa7d16afd44819cb23eddd28720776c.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:964
  • 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:1636
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 2E5C427189A857B1C8DCC02922A7E90E
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:272
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C start /MAX https://adobe.ly/2RY5GJR
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1480
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" https://adobe.ly/2RY5GJR
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:976
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:976 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1072
      • C:\Users\Admin\AppData\Local\Temp\lc2C28.tmp
        "C:\Users\Admin\AppData\Local\Temp\lc2C28.tmp"
        3⤵
        • Executes dropped EXE
        PID:1964

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/272-56-0x0000000075341000-0x0000000075343000-memory.dmp

    Filesize

    8KB

  • memory/964-54-0x000007FEFBAD1000-0x000007FEFBAD3000-memory.dmp

    Filesize

    8KB