Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    03-03-2024 01:13

General

  • Target

    RAT/CobaltStrike.docm

  • Size

    86KB

  • MD5

    96ff9d4cac8d3a8e73c33fc6bf72f198

  • SHA1

    17d7edf6e496dec4695d686e7d0e422081cd5cbe

  • SHA256

    96db5d52f4addf46b0a41d45351a52041d9e5368aead642402db577bcb33cc3d

  • SHA512

    23659fb32dff24b17caffaf94133dac253ccde16ea1ad4d378563b16e99cb10b3d7e9dacf1b95911cd54a2cad4710e48c109ab73796b954cd20844833d3a7c46

  • SSDEEP

    1536:lDZnLvdWcSVUj473eXfb6K3ABfSlH+ArfocK4XEorNColhVDo8NYzyReCxRVZs+x:vDAzVY4zSfb6mABfSleqocKg7Bo8NiCR

Malware Config

Extracted

Family

metasploit

Version

windows/download_exec

C2

http://149.129.72.37:23456/SNpK

Attributes
  • headers User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; NP09; NP09; MAAU)

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • 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 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 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\RAT\CobaltStrike.docm"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2984
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2584
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\\SysWOW64\\rundll32.exe
        2⤵
        • Process spawned unexpected child process
        • Blocklisted process makes network request
        PID:2692

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    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/2692-52-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-48-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-41-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-70-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-1624-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-66-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-28-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-68-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-24-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-44-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-38-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-46-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-86-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-84-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-82-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-80-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-78-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-76-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-74-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-72-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-50-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-26-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-30-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-64-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-62-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-60-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-58-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-56-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2692-54-0x0000000000090000-0x0000000000091000-memory.dmp
      Filesize

      4KB

    • memory/2984-0-0x000000002F051000-0x000000002F052000-memory.dmp
      Filesize

      4KB

    • memory/2984-18-0x00000000052B0000-0x00000000053B0000-memory.dmp
      Filesize

      1024KB

    • memory/2984-2-0x000000007166D000-0x0000000071678000-memory.dmp
      Filesize

      44KB

    • memory/2984-42-0x00000000052B0000-0x00000000053B0000-memory.dmp
      Filesize

      1024KB

    • memory/2984-40-0x0000000000470000-0x0000000000570000-memory.dmp
      Filesize

      1024KB

    • memory/2984-20-0x0000000000470000-0x0000000000570000-memory.dmp
      Filesize

      1024KB

    • memory/2984-16-0x00000000052B0000-0x00000000053B0000-memory.dmp
      Filesize

      1024KB

    • memory/2984-22-0x0000000000470000-0x0000000000570000-memory.dmp
      Filesize

      1024KB

    • memory/2984-1-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/2984-1638-0x000000007166D000-0x0000000071678000-memory.dmp
      Filesize

      44KB

    • memory/2984-1639-0x00000000052B0000-0x00000000053B0000-memory.dmp
      Filesize

      1024KB

    • memory/2984-1640-0x0000000000470000-0x0000000000570000-memory.dmp
      Filesize

      1024KB