Analysis

  • max time kernel
    146s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    27-04-2022 02:23

General

  • Target

    fckijxld.xlsm

  • Size

    46KB

  • MD5

    969869a41c8f52fc0853eaaba007be0f

  • SHA1

    7d1c58a56647a9f3ede204d60fa0e6813d1ad8d1

  • SHA256

    dcc6409e704780116523a3e6ca35edf1399b381568d26b6d0373d1d9e00be491

  • SHA512

    c4a1a7ff06d4b59ed39640ca213bc1640907b304b613e47b9fe3561cd7caf6acb4f0c9a0fe19c9bb79b86dcbcae51bebec1831c732396cb1294b2860bd387c86

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\fckijxld.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:1668
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\xewn.dll
      2⤵
      • Process spawned unexpected child process
      PID:1620

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\xewn.dll

    Filesize

    679KB

    MD5

    969717a6e427dae36c8215d681481100

    SHA1

    2c739456b5332df5819ac98c882883b92488c8d1

    SHA256

    50b9932ae9a50de9627a1ce590e4cf9fc5dda7a9e2ca263e0ea961f5148e42a8

    SHA512

    0f04ac475e254cde73fff44edfce1651f54563315e169c3c7efd7e72c6ddddf7ecb6ffefe784953b0435ef002adfed6de3e98936e50765bb09a1ccbfc9ba30ac

  • memory/1668-54-0x000000002F0E1000-0x000000002F0E4000-memory.dmp

    Filesize

    12KB

  • memory/1668-55-0x0000000071901000-0x0000000071903000-memory.dmp

    Filesize

    8KB

  • memory/1668-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1668-57-0x00000000762C1000-0x00000000762C3000-memory.dmp

    Filesize

    8KB

  • memory/1668-58-0x00000000728ED000-0x00000000728F8000-memory.dmp

    Filesize

    44KB