Analysis

  • max time kernel
    157s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    12-01-2022 18:44

General

  • Target

    824524892.xlsm

  • Size

    83KB

  • MD5

    3a34a8f95b92bec1e9aefb1235d27dfd

  • SHA1

    5aa96c293a519112b6453657c103add288a84cdf

  • SHA256

    cce90115dbb29f91192ea44a98616dbd6b6f4a74e76c8eefe004edba731635b7

  • SHA512

    dcaaac4a8cbcb8c2472bf015c3da35a3864424f809453fe3340e94e88d9ddeeb2a94321b4edf1ca07637b9ea593546a7b0d66626a588df4ace084afc1ce4fc48

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://www.be-pu.com/4.hana/Y1XWpb1zWMRD/

xlm40.dropper

https://josephinebaba.com/licenses/7Doxdg/

xlm40.dropper

http://bestwifirouterreview.xyz/wp-includes/css/uyC/

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 14 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\824524892.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:1508
    • C:\Windows\SysWow64\rundll32.exe
      C:\Windows\SysWow64\rundll32.exe ..\adi.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1080
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\adi.ocx",DllRegisterServer
        3⤵
        • Loads dropped DLL
        PID:1444

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

  • C:\Users\Admin\adi.ocx
    MD5

    2440f435eb68736e9f0391dc8a61091a

    SHA1

    9cd317ffe45ca96ecc3570bb904b488180fda557

    SHA256

    a4787b157c1319d138b740b7d7678355cf139b7278c54acd31e982837de09fae

    SHA512

    24bdbb0233d2e0cf50a2e745259698a9d5fa65b66d5eb0058909ce76a9e7103aa3c357f5183b890806ec19a66fbeb3e484b77b72d0c8d0ea6eeeb7607d30a2c9

  • \Users\Admin\adi.ocx
    MD5

    2440f435eb68736e9f0391dc8a61091a

    SHA1

    9cd317ffe45ca96ecc3570bb904b488180fda557

    SHA256

    a4787b157c1319d138b740b7d7678355cf139b7278c54acd31e982837de09fae

    SHA512

    24bdbb0233d2e0cf50a2e745259698a9d5fa65b66d5eb0058909ce76a9e7103aa3c357f5183b890806ec19a66fbeb3e484b77b72d0c8d0ea6eeeb7607d30a2c9

  • \Users\Admin\adi.ocx
    MD5

    2440f435eb68736e9f0391dc8a61091a

    SHA1

    9cd317ffe45ca96ecc3570bb904b488180fda557

    SHA256

    a4787b157c1319d138b740b7d7678355cf139b7278c54acd31e982837de09fae

    SHA512

    24bdbb0233d2e0cf50a2e745259698a9d5fa65b66d5eb0058909ce76a9e7103aa3c357f5183b890806ec19a66fbeb3e484b77b72d0c8d0ea6eeeb7607d30a2c9

  • memory/1080-57-0x0000000000000000-mapping.dmp
  • memory/1080-58-0x0000000076911000-0x0000000076913000-memory.dmp
    Filesize

    8KB

  • memory/1080-64-0x0000000000230000-0x0000000000259000-memory.dmp
    Filesize

    164KB

  • memory/1444-61-0x0000000000000000-mapping.dmp
  • memory/1508-54-0x000000002FEA1000-0x000000002FEA4000-memory.dmp
    Filesize

    12KB

  • memory/1508-55-0x0000000071881000-0x0000000071883000-memory.dmp
    Filesize

    8KB

  • memory/1508-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB