Analysis

  • max time kernel
    154s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25-05-2022 21:53

General

  • Target

    ?i=1uxxcksfp.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 6 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\_i=1uxxcksfp.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:1756
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\xewn.dll
      2⤵
      • Process spawned unexpected child process
      PID:1444

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\xewn.dll

    Filesize

    679KB

    MD5

    be48dfa52ebe3105eb7710554045d621

    SHA1

    693afe42806d64d81f7633d36408e5d4c3960b51

    SHA256

    9f354ea2497cf474e0fcb61e1316bef232b7f4e0236109ac4f4c13e46ab07a88

    SHA512

    2b21ecfd4f77ab7d9dc4bfb752fb1df76881afbdbadd6137fe8940257bb2fce2a79a3c7544d71a847a10d88647a692a5351d51a0bb67426ee1320f6b56ffcdd4

  • memory/1756-54-0x000000002F911000-0x000000002F914000-memory.dmp

    Filesize

    12KB

  • memory/1756-55-0x0000000071371000-0x0000000071373000-memory.dmp

    Filesize

    8KB

  • memory/1756-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1756-57-0x000000007235D000-0x0000000072368000-memory.dmp

    Filesize

    44KB

  • memory/1756-58-0x00000000750C1000-0x00000000750C3000-memory.dmp

    Filesize

    8KB