Analysis

  • max time kernel
    71s
  • max time network
    14s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    15-03-2021 15:12

General

  • Target

    document-391833622.xls

  • Size

    139KB

  • MD5

    9bd88ed66fcbdcd65cfbc06d32e418a6

  • SHA1

    06ba7f00d14742b415cc4cae4ab67e7a131ffa27

  • SHA256

    6b9b28b35b07fdeedc09d065727dc72da3c8b3f6455df35034822edd1b4c05e8

  • SHA512

    084cc4b16c5b41218893cd8a499058bdc738a105bf795564af8f0c1f5bfee01d6587db38c7f8aed7bc61e9d8de97639e5946bef4ce0a9d26dd1887990e8936f5

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://bpxe15jijmh03ubiwhh.xyz/w.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-391833622.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1096
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\zfbfg.ere,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1728

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1096-2-0x000000002F621000-0x000000002F624000-memory.dmp
    Filesize

    12KB

  • memory/1096-3-0x0000000071461000-0x0000000071463000-memory.dmp
    Filesize

    8KB

  • memory/1096-4-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1728-6-0x0000000000000000-mapping.dmp
  • memory/1728-7-0x0000000075301000-0x0000000075303000-memory.dmp
    Filesize

    8KB

  • memory/1980-5-0x000007FEF7500000-0x000007FEF777A000-memory.dmp
    Filesize

    2.5MB