Analysis

  • max time kernel
    148s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    27-04-2022 02:33

General

  • Target

    ?i=1peaqcanv.xlsm

  • Size

    83KB

  • MD5

    8d09ec7797984a737034a20bb36f7d29

  • SHA1

    6629a4afb00ae6314148a4bd26e4bd6bef13cfdf

  • SHA256

    7502d81e1850ddeca8f2a9b2b5b986b1402710ac10ba7247fa34dbde1e9f1399

  • SHA512

    4d944f5bfedae36ecd8f42a6613529647d638fbddd1af6a5d3a3ae6b7a4289b5d051e1d6cd25d58a14e5efd88b071438e578bafc166e07851e0e044567bcb684

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://mail.emilyanncain.com/cgi-bin/A7NT3ENvn/

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=1peaqcanv.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:1960
    • C:\Windows\SysWow64\rundll32.exe
      C:\Windows\SysWow64\rundll32.exe ..\erum.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
      2⤵
      • Process spawned unexpected child process
      PID:1128

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\erum.ocx

    Filesize

    7KB

    MD5

    e91cd7bacfb3abed6802b39c80476127

    SHA1

    58456194aa421276903f56697d0dcb726b382846

    SHA256

    884b9474ac5ad85e41082628689579115648baf259f222b4c362afb99d1a0fb1

    SHA512

    392076e05470eb90c76fc16067279e4a426790de24785889393abfd53f19cd06340ef5e03edae1e98e0be220223c9da4f415ae3a7bc5aa085be837ef975bdfc9

  • memory/1128-59-0x0000000000000000-mapping.dmp

  • memory/1960-54-0x000000002F431000-0x000000002F434000-memory.dmp

    Filesize

    12KB

  • memory/1960-55-0x00000000710D1000-0x00000000710D3000-memory.dmp

    Filesize

    8KB

  • memory/1960-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1960-57-0x00000000720BD000-0x00000000720C8000-memory.dmp

    Filesize

    44KB

  • memory/1960-58-0x0000000075DE1000-0x0000000075DE3000-memory.dmp

    Filesize

    8KB