Analysis

  • max time kernel
    128s
  • max time network
    143s
  • platform
    windows10_x64
  • resource
    win10-20220414-en
  • submitted
    07-07-2022 04:10

General

  • Target

    936565c8993dccaee2bd798d9b08b41334a4b9435ab96c4539a41953fee4e725.xls

  • Size

    95KB

  • MD5

    aa5161c385010954aeb1e8887c70645e

  • SHA1

    df5913d6dc3c25a5fcf285a9d03b21abbe1a7d03

  • SHA256

    936565c8993dccaee2bd798d9b08b41334a4b9435ab96c4539a41953fee4e725

  • SHA512

    3afaf5eec36b991c21c96431ac532ffd56c98e4ec7ffc863ab5b441703ff25e51169ea5b63593f5d3f5a044cc1a314a35d4b23a0fc1e5979935718a7aeb4a662

Score
10/10

Malware Config

Extracted

Language xlm4.0
Source
URLs
xlm40.dropper

http://www.sunflowerlaboratory.in/fonts/79Tq62ly/

xlm40.dropper

http://dirigent.co.uk/vardagsekonomi/iC36jJ4J1cf/

xlm40.dropper

http://agtrade.hu/images/kiQYmOs2tSKq/

xlm40.dropper

https://www.zachboyle.com/wp-admin/EA470ZrTGNkuA/

Signatures 7

  • 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 5

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\936565c8993dccaee2bd798d9b08b41334a4b9435ab96c4539a41953fee4e725.xls"
    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:1512
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
      Process spawned unexpected child process
      PID:2164
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
      Process spawned unexpected child process
      PID:3916
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
      Process spawned unexpected child process
      PID:2072
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
      Process spawned unexpected child process
      PID:1856

Network

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

          Execution

            Exfiltration

              Impact

                Initial Access

                  Lateral Movement

                    Persistence

                      Privilege Escalation

                        Replay Monitor

                        00:00 00:00

                        Downloads

                        • memory/1512-311-0x00007FFD153E0000-0x00007FFD153F0000-memory.dmp
                        • memory/1512-120-0x00007FFD153E0000-0x00007FFD153F0000-memory.dmp
                        • memory/1512-121-0x00007FFD153E0000-0x00007FFD153F0000-memory.dmp
                        • memory/1512-122-0x00007FFD153E0000-0x00007FFD153F0000-memory.dmp
                        • memory/1512-131-0x00007FFD12650000-0x00007FFD12660000-memory.dmp
                        • memory/1512-132-0x00007FFD12650000-0x00007FFD12660000-memory.dmp
                        • memory/1512-314-0x00007FFD153E0000-0x00007FFD153F0000-memory.dmp
                        • memory/1512-313-0x00007FFD153E0000-0x00007FFD153F0000-memory.dmp
                        • memory/1512-312-0x00007FFD153E0000-0x00007FFD153F0000-memory.dmp
                        • memory/1512-119-0x00007FFD153E0000-0x00007FFD153F0000-memory.dmp
                        • memory/1856-274-0x0000000000000000-mapping.dmp
                        • memory/2072-271-0x0000000000000000-mapping.dmp
                        • memory/2164-269-0x0000000000000000-mapping.dmp
                        • memory/3916-270-0x0000000000000000-mapping.dmp