Analysis

  • max time kernel
    127s
  • max time network
    130s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    10/11/2022, 10:31

General

  • Target

    4b216f5401ecf30dc9d6b928465eaeb0c5e40f0d5f9c8e4469c97259cdefb1d5.xls

  • Size

    91KB

  • MD5

    0555c190cfca3661d2e2c3e7555f5dfa

  • SHA1

    d9b8cff0a62b18f07074e8a3bd42e15dc525457b

  • SHA256

    4b216f5401ecf30dc9d6b928465eaeb0c5e40f0d5f9c8e4469c97259cdefb1d5

  • SHA512

    a13b949d719efb1be041075b5b26da3bab703232f6dc9483bcb68940f9d4bf8db65788d5f9c74b3035b3d4552124ce7153bee0522d2067483ccb0b65e414536f

  • SSDEEP

    1536:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgqbCXuZH4gb4CEn9J4ZXz3:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgO

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://www.conceptagency.net/css/b8eaKN/

xlm40.dropper

https://bencevendeghaz.hu/2zjoi/cwfKJOzA/

xlm40.dropper

http://45.32.114.141/xilte/Uqm6Eysf3Hkjwh/

xlm40.dropper

http://ruitaiwz.com/wp-admin/MXlp5IsUKwT1k0DtzT/

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\4b216f5401ecf30dc9d6b928465eaeb0c5e40f0d5f9c8e4469c97259cdefb1d5.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:3764
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:4348
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:4416
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:3608
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:3016

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/3764-118-0x00007FFC82FF0000-0x00007FFC83000000-memory.dmp

          Filesize

          64KB

        • memory/3764-115-0x00007FFC82FF0000-0x00007FFC83000000-memory.dmp

          Filesize

          64KB

        • memory/3764-127-0x00007FFC801D0000-0x00007FFC801E0000-memory.dmp

          Filesize

          64KB

        • memory/3764-128-0x00007FFC801D0000-0x00007FFC801E0000-memory.dmp

          Filesize

          64KB

        • memory/3764-117-0x00007FFC82FF0000-0x00007FFC83000000-memory.dmp

          Filesize

          64KB

        • memory/3764-116-0x00007FFC82FF0000-0x00007FFC83000000-memory.dmp

          Filesize

          64KB

        • memory/3764-311-0x00007FFC82FF0000-0x00007FFC83000000-memory.dmp

          Filesize

          64KB

        • memory/3764-312-0x00007FFC82FF0000-0x00007FFC83000000-memory.dmp

          Filesize

          64KB

        • memory/3764-313-0x00007FFC82FF0000-0x00007FFC83000000-memory.dmp

          Filesize

          64KB

        • memory/3764-314-0x00007FFC82FF0000-0x00007FFC83000000-memory.dmp

          Filesize

          64KB