Analysis

  • max time kernel
    150s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-04-2022 19:41

General

  • Target

    pxcrtyct.xlsm

  • Size

    46KB

  • MD5

    363495acb4327435709de91edaef8338

  • SHA1

    11ea485cddc9de2db0397f02f00a564a9468f032

  • SHA256

    64d92f79a2d87571d428b7b19ef4f5c1680c24c8952a2f46b84f217cfba19766

  • SHA512

    1502abfa4494c69541cbaf3f00b176f04a45802b35a0818f0a46cd229a99dd675a7b8746efa946ea37efd7305c18a00eaba4a48c251d19d084fcbf4e575cf10e

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://eles-tech.com/css/KzMysMqFMs/

xlm40.dropper

http://gonorthhalifax.com/wp-content/yTmYyLbTKZV2czsUO/

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 31 IoCs
  • Modifies registry class 64 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\pxcrtyct.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:1692
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\xewn.dll
      2⤵
      • Process spawned unexpected child process
      PID:1964

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\xewn.dll

    Filesize

    677KB

    MD5

    e15f117276b3153d5b1dd3901e76931f

    SHA1

    bb395f34238382e3c441648a94a10f881bf4dc59

    SHA256

    d742595c4c90aa02771fcab5fb136e00da859386524ac11c301acdecd8f24136

    SHA512

    bb9c2e4ce067277b66ccd025cf91e074c5035264cd21c86023f6a3c10159d5ce76fba8cc23b5095e18c4d5cbc8b7118d4cb7d380937f1ab5b5344f4e33c14e90

  • memory/1692-54-0x000000002FC51000-0x000000002FC54000-memory.dmp

    Filesize

    12KB

  • memory/1692-55-0x0000000071921000-0x0000000071923000-memory.dmp

    Filesize

    8KB

  • memory/1692-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1692-57-0x000000007290D000-0x0000000072918000-memory.dmp

    Filesize

    44KB

  • memory/1692-58-0x0000000075951000-0x0000000075953000-memory.dmp

    Filesize

    8KB