Analysis

  • max time kernel
    148s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    19-04-2022 04:23

General

  • Target

    ?i=1kpsktxro.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 5 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=1kpsktxro.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:1708
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\xewn.dll
      2⤵
      • Process spawned unexpected child process
      PID:1376

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\xewn.dll

    Filesize

    677KB

    MD5

    85667ebb0413810d1140e2421b1dc2de

    SHA1

    35ffef0fe6ea61eac204cb4fe9cf845564ee75d4

    SHA256

    6853a00ff78781fbce924f4fc62a494e8066642ba9a21b38ca5e56f8f4a6feeb

    SHA512

    1946a2ab23c9ba4d9674971b79d5b793908a12989e0735a2cd3fc899b69823cd47f812c28b87e4cc067568920eeebca2d2fa0308af4ffdb71013a7d270b8545f

  • memory/1376-59-0x0000000075A61000-0x0000000075A63000-memory.dmp

    Filesize

    8KB

  • memory/1708-54-0x000000002F191000-0x000000002F194000-memory.dmp

    Filesize

    12KB

  • memory/1708-55-0x0000000070F71000-0x0000000070F73000-memory.dmp

    Filesize

    8KB

  • memory/1708-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1708-57-0x0000000071F5D000-0x0000000071F68000-memory.dmp

    Filesize

    44KB