Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10-20220414-en
  • submitted
    07-07-2022 03:23

General

  • Target

    dd297e7743f06c69e4f304dced75ec48e62dd66ae3b30e41fe95929e174600c1.xls

  • Size

    95KB

  • MD5

    95528352bdd0bf56d96a7a72309ef041

  • SHA1

    47510ced7d634285c8419abbc6360782075da9b2

  • SHA256

    dd297e7743f06c69e4f304dced75ec48e62dd66ae3b30e41fe95929e174600c1

  • SHA512

    73cb19d6df89a6a9603f957fb556898d04a53bfaa0c41c6f77c1ce1666477a6fbd9add1b0bce6940c4774133090665a567a33ff43e244e7886e7a50871eac0a2

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\dd297e7743f06c69e4f304dced75ec48e62dd66ae3b30e41fe95929e174600c1.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:1276
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
      2⤵
      • Process spawned unexpected child process
      PID:4624
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
      2⤵
      • Process spawned unexpected child process
      PID:2112
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
      2⤵
      • Process spawned unexpected child process
      PID:616
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
      2⤵
      • Process spawned unexpected child process
      PID:3932

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/616-256-0x0000000000000000-mapping.dmp
  • memory/1276-118-0x00007FFF37550000-0x00007FFF37560000-memory.dmp
    Filesize

    64KB

  • memory/1276-120-0x00007FFF37550000-0x00007FFF37560000-memory.dmp
    Filesize

    64KB

  • memory/1276-119-0x00007FFF37550000-0x00007FFF37560000-memory.dmp
    Filesize

    64KB

  • memory/1276-121-0x00007FFF37550000-0x00007FFF37560000-memory.dmp
    Filesize

    64KB

  • memory/1276-130-0x00007FFF33C50000-0x00007FFF33C60000-memory.dmp
    Filesize

    64KB

  • memory/1276-131-0x00007FFF33C50000-0x00007FFF33C60000-memory.dmp
    Filesize

    64KB

  • memory/2112-255-0x0000000000000000-mapping.dmp
  • memory/3932-257-0x0000000000000000-mapping.dmp
  • memory/4624-254-0x0000000000000000-mapping.dmp