Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10-20220414-en
  • submitted
    07-07-2022 03:39

General

  • Target

    fd83cf7f1a5cfde8cbb5c54caadf87548d76bc531c032999f26ec0415cc1ca7b.xls

  • Size

    95KB

  • MD5

    7864db7635b417b32cd0b3876ad93a16

  • SHA1

    1f1266de974fca22357ceb6b236f1ba8f3d939f7

  • SHA256

    fd83cf7f1a5cfde8cbb5c54caadf87548d76bc531c032999f26ec0415cc1ca7b

  • SHA512

    1001cdb89fcb217100f9fabd3cf3f531075934f7b9e0ed5a0a41ae3b9af1c8dc1a0cc8941f6ef3b46c3e5cff8e89b92f9654769ea4ac180723f354697194df7a

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

  • 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

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\fd83cf7f1a5cfde8cbb5c54caadf87548d76bc531c032999f26ec0415cc1ca7b.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2628
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
      2⤵
      • Process spawned unexpected child process
      PID:3800
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
      2⤵
      • Process spawned unexpected child process
      PID:4400
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
      2⤵
      • Process spawned unexpected child process
      PID:3056
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
      2⤵
      • Process spawned unexpected child process
      PID:3744

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/2628-117-0x00007FFFA31B0000-0x00007FFFA31C0000-memory.dmp
    Filesize

    64KB

  • memory/2628-118-0x00007FFFA31B0000-0x00007FFFA31C0000-memory.dmp
    Filesize

    64KB

  • memory/2628-119-0x00007FFFA31B0000-0x00007FFFA31C0000-memory.dmp
    Filesize

    64KB

  • memory/2628-120-0x00007FFFA31B0000-0x00007FFFA31C0000-memory.dmp
    Filesize

    64KB

  • memory/2628-129-0x00007FFF9F980000-0x00007FFF9F990000-memory.dmp
    Filesize

    64KB

  • memory/2628-130-0x00007FFF9F980000-0x00007FFF9F990000-memory.dmp
    Filesize

    64KB

  • memory/3056-261-0x0000000000000000-mapping.dmp
  • memory/3744-264-0x0000000000000000-mapping.dmp
  • memory/3800-259-0x0000000000000000-mapping.dmp
  • memory/4400-260-0x0000000000000000-mapping.dmp