Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10-20220414-en
  • submitted
    07-07-2022 04:13

General

  • Target

    a143d87f0842c73830ec5045ed73c4b0c50a8f1ded1d987b53e2d2c6c768aee6.xls

  • Size

    95KB

  • MD5

    9188649c1cdfb1cd39d80b9980753675

  • SHA1

    42a9d1e4dcb5b57c944b41874f30f9a38a6c24d4

  • SHA256

    a143d87f0842c73830ec5045ed73c4b0c50a8f1ded1d987b53e2d2c6c768aee6

  • SHA512

    812c486a73c8db8614f55e31ed5ad03f08baf336e42639646612bcad6c15b9c4360a51ee8300b7cb0a1c471caed5f06eb9845e60a73498501c7453375ab71f93

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 6

  • 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 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\a143d87f0842c73830ec5045ed73c4b0c50a8f1ded1d987b53e2d2c6c768aee6.xls"
    Checks processor information in registry
    Enumerates system info in registry
    Suspicious behavior: AddClipboardFormatListener
    Suspicious use of SetWindowsHookEx
    Suspicious use of WriteProcessMemory
    PID:2444
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
      Process spawned unexpected child process
      PID:1360
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
      Process spawned unexpected child process
      PID:2888
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
      Process spawned unexpected child process
      PID:3704
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
      Process spawned unexpected child process
      PID:3628

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/1360-249-0x0000000000000000-mapping.dmp
                        • memory/2444-118-0x00007FFC3FD00000-0x00007FFC3FD10000-memory.dmp
                        • memory/2444-119-0x00007FFC3FD00000-0x00007FFC3FD10000-memory.dmp
                        • memory/2444-120-0x00007FFC3FD00000-0x00007FFC3FD10000-memory.dmp
                        • memory/2444-121-0x00007FFC3FD00000-0x00007FFC3FD10000-memory.dmp
                        • memory/2444-130-0x00007FFC3C290000-0x00007FFC3C2A0000-memory.dmp
                        • memory/2444-131-0x00007FFC3C290000-0x00007FFC3C2A0000-memory.dmp
                        • memory/2888-257-0x0000000000000000-mapping.dmp
                        • memory/3628-261-0x0000000000000000-mapping.dmp
                        • memory/3704-258-0x0000000000000000-mapping.dmp