Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows10_x64
  • resource
    win10-20220414-en
  • submitted
    07-07-2022 04:08

General

  • Target

    10fa6005847123358153b457bbb0544fdb9336d3ede2f2c122d14199d2413346.xls

  • Size

    95KB

  • MD5

    3bd53b9274e0465ae5f15efbf34cd96c

  • SHA1

    03198f860e12a66454036b4c0719ad1b3e928f55

  • SHA256

    10fa6005847123358153b457bbb0544fdb9336d3ede2f2c122d14199d2413346

  • SHA512

    9d94a21230f32e04ad672a19f4adefbba7bebc03e9d66d11c1841409dcf9afe9045044844e1de67f1e007e13494ef4d32c31657cafedb42aa3d6fd2754bd38b2

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://edoraseguros.com.br/cgi-bin/jQNq9wlH1GXU/

xlm40.dropper

http://earthmach.co.za/libraries/tWkZh9YrXbTd6IeX/

xlm40.dropper

http://finvest.rs/wp-admin/Hr9nVNTIHgw59S/

xlm40.dropper

http://efverstedt.se/5jjaV/w7fLEHJ20xn0qD/

Signatures

  • Process spawned unexpected child process 4 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\10fa6005847123358153b457bbb0544fdb9336d3ede2f2c122d14199d2413346.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3620
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
      2⤵
      • Process spawned unexpected child process
      PID:4404
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
      2⤵
      • Process spawned unexpected child process
      PID:4556
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
      2⤵
      • Process spawned unexpected child process
      PID:4280
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
      2⤵
      • Process spawned unexpected child process
      PID:5064

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3620-117-0x00007FF8A03B0000-0x00007FF8A03C0000-memory.dmp
    Filesize

    64KB

  • memory/3620-118-0x00007FF8A03B0000-0x00007FF8A03C0000-memory.dmp
    Filesize

    64KB

  • memory/3620-119-0x00007FF8A03B0000-0x00007FF8A03C0000-memory.dmp
    Filesize

    64KB

  • memory/3620-120-0x00007FF8A03B0000-0x00007FF8A03C0000-memory.dmp
    Filesize

    64KB

  • memory/3620-129-0x00007FF89CDE0000-0x00007FF89CDF0000-memory.dmp
    Filesize

    64KB

  • memory/3620-130-0x00007FF89CDE0000-0x00007FF89CDF0000-memory.dmp
    Filesize

    64KB

  • memory/4280-255-0x0000000000000000-mapping.dmp
  • memory/4404-253-0x0000000000000000-mapping.dmp
  • memory/4556-254-0x0000000000000000-mapping.dmp
  • memory/5064-256-0x0000000000000000-mapping.dmp