Analysis

  • max time kernel
    125s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    12-03-2021 19:52

General

  • Target

    document-1493660683.xls

  • Size

    138KB

  • MD5

    14d530304d5dc7de3ac733668aada46b

  • SHA1

    b2bea2224cecce48b64c6266567f00c826f12704

  • SHA256

    043a3b64882b41ead3af3c2476b7d62ce11485897f77281755973dbf1701283b

  • SHA512

    f6cf83f0fd6a54dd71c1962e13948330765122887ece92e602139f7c0359991a6f316700874177edaeca246a91b685ff80aaddf9bd7bc59f78b888a3be8b3716

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://gcfxb12aefoyn03epdoji.xyz/i.gif

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 7 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\document-1493660683.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1040
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\zfbfg.ere,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:2016

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1040-2-0x000000002F8D1000-0x000000002F8D4000-memory.dmp
    Filesize

    12KB

  • memory/1040-3-0x00000000715A1000-0x00000000715A3000-memory.dmp
    Filesize

    8KB

  • memory/1040-4-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1724-5-0x000007FEF7DF0000-0x000007FEF806A000-memory.dmp
    Filesize

    2.5MB

  • memory/2016-6-0x0000000000000000-mapping.dmp
  • memory/2016-7-0x0000000076311000-0x0000000076313000-memory.dmp
    Filesize

    8KB