Analysis

  • max time kernel
    152s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    26-06-2022 06:09

General

  • Target

    utrfdydu.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\utrfdydu.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:1976
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\xewn.dll
      2⤵
      • Process spawned unexpected child process
      PID:1776

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\xewn.dll

    Filesize

    747KB

    MD5

    34e0ab652c0488f6c421765e3991be2b

    SHA1

    c18a877ca0b8a2ad0f67eaff787677f6ad59466f

    SHA256

    401d9453e49c467dbbc1678a759b4186fb7bcc282e9dd2d0497a883e92ac54f0

    SHA512

    4d84b678532be4287e1308c075b1e3f3bfb2bf588188c87adb79dd07ef37e29b16a4f33f4398a5a25a31fa4ac38fb3790c5c3e64b2d9991c00b4c40c0bc0b979

  • memory/1976-54-0x000000002F9A1000-0x000000002F9A4000-memory.dmp

    Filesize

    12KB

  • memory/1976-55-0x00000000717D1000-0x00000000717D3000-memory.dmp

    Filesize

    8KB

  • memory/1976-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1976-57-0x00000000727BD000-0x00000000727C8000-memory.dmp

    Filesize

    44KB

  • memory/1976-58-0x00000000757C1000-0x00000000757C3000-memory.dmp

    Filesize

    8KB

  • memory/1976-59-0x00000000727BD000-0x00000000727C8000-memory.dmp

    Filesize

    44KB