Analysis

  • max time kernel
    113s
  • max time network
    114s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    24/11/2020, 23:47

General

  • Target
    deed contract.11.20.doc
  • Size 143KB
  • Sample201124-ess7e2rmle
  • SHA256 37db367c01e40ee2f05a5966d6670e07fd3292c01f4da8ffd77c0e3c96a79464
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Blacklisted process makes network request 6 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Script User-Agent 1 IoCs

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 11 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\deed contract.11.20.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1584
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 C:\Users\Admin\AppData\Local\Temp\FpVjp.pdf,ShowDialogA -r
      2⤵
      • Process spawned unexpected child process
      • Blacklisted process makes network request
      • Loads dropped DLL
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      PID:1188
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:564

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/1584-0-0x00000000005B7000-0x00000000005BA000-memory.dmp

          memory/1584-1-0x0000000000534000-0x0000000000538000-memory.dmp

          memory/1584-2-0x0000000000534000-0x0000000000538000-memory.dmp