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Analysis

  • max time kernel
    154s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/02/2023, 02:22

General

  • Target

    f5c526fd505d86be5d8665a4852e6e2d2fe24ece2fff8a92e7042682315f303c.xls

  • Size

    217KB

  • MD5

    be7cedd7ced2867f4b746a208b7fc925

  • SHA1

    73303331e9cb08a3ef344d3f751b506fee29e71b

  • SHA256

    f5c526fd505d86be5d8665a4852e6e2d2fe24ece2fff8a92e7042682315f303c

  • SHA512

    a72af25fd7c6f7cba2644b149e73c8f708b94aba0d647dd6f4d6bb29ce8cf82e7886e7c694ecb746fbd889841a5c4b8788120b833002588dbcd9c6f45ad2723f

  • SSDEEP

    6144:HKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgByY+TAQXTHGUMEyP5p6f5jQmK:BbGUMVWlbK

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://ftp.agir-santeinternationale.com/doctors/KAacngW97n4ApzVBDdGy/

xlm40.dropper

http://www.vinyz.com/admin3693/BDFFgAZ6zBRumcUSG/

xlm40.dropper

http://ly.yjlianyi.top/wp-admin/NRAdJ/

xlm40.dropper

http://www.muyehuayi.com/cmp/Vtm2m7z88g/

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 13 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\f5c526fd505d86be5d8665a4852e6e2d2fe24ece2fff8a92e7042682315f303c.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2212
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:116
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1268
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:4280
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:4344

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2212-132-0x00007FF9B2750000-0x00007FF9B2760000-memory.dmp

    Filesize

    64KB

  • memory/2212-133-0x00007FF9B2750000-0x00007FF9B2760000-memory.dmp

    Filesize

    64KB

  • memory/2212-134-0x00007FF9B2750000-0x00007FF9B2760000-memory.dmp

    Filesize

    64KB

  • memory/2212-135-0x00007FF9B2750000-0x00007FF9B2760000-memory.dmp

    Filesize

    64KB

  • memory/2212-136-0x00007FF9B2750000-0x00007FF9B2760000-memory.dmp

    Filesize

    64KB

  • memory/2212-137-0x00007FF9AFE90000-0x00007FF9AFEA0000-memory.dmp

    Filesize

    64KB

  • memory/2212-138-0x00007FF9AFE90000-0x00007FF9AFEA0000-memory.dmp

    Filesize

    64KB