Analysis

  • max time kernel
    152s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-04-2022 19:23

General

  • Target

    ?i=1swcfaybi.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\_i=1swcfaybi.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:632
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\xewn.dll
      2⤵
      • Process spawned unexpected child process
      PID:964

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/632-54-0x000000002F361000-0x000000002F364000-memory.dmp

    Filesize

    12KB

  • memory/632-55-0x0000000071851000-0x0000000071853000-memory.dmp

    Filesize

    8KB

  • memory/632-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/632-57-0x000000007283D000-0x0000000072848000-memory.dmp

    Filesize

    44KB

  • memory/632-58-0x0000000075391000-0x0000000075393000-memory.dmp

    Filesize

    8KB