Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-11-2024 17:23

General

  • Target

    b8f3c0e74fcf05c3cb59c8efceeb42938b126a904ab74773100e8e78843ad168.xls

  • Size

    70KB

  • MD5

    e79c4898dcefac690d11a4d2bfe13afe

  • SHA1

    fdc27e42a66650fdef6d94906b6612d31a60a636

  • SHA256

    b8f3c0e74fcf05c3cb59c8efceeb42938b126a904ab74773100e8e78843ad168

  • SHA512

    436ccc04ea7f10fd370bd3e48131b90134646dc98e1e5a999aba0bd6e77ef9ea9af362d165114a0fde7c46ad9666fc563d308420d627c0be9385d6c63ff64fe5

  • SSDEEP

    1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+e+hDcnTLiQrRTZws8Eg0:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMh

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://strachanclark.com/images/3gc4qCpSFYbBMDEC/

xlm40.dropper

https://synapse-archive.com/images/bKaMr/

xlm40.dropper

https://sumuvesa.com/wp-includes/rgL/

Signatures

  • Process spawned unexpected child process 3 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 6 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\b8f3c0e74fcf05c3cb59c8efceeb42938b126a904ab74773100e8e78843ad168.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:1232
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
      2⤵
      • Process spawned unexpected child process
      PID:2320
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
      2⤵
      • Process spawned unexpected child process
      PID:4032
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
      2⤵
      • Process spawned unexpected child process
      PID:1184

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

    Filesize

    1KB

    MD5

    645c0b4b4a4c43a591958af8c847f260

    SHA1

    1e1a342cac51109302c8084dccd38c5f34bd7494

    SHA256

    0c36100009a2fb8635b6872f3cb90d45fc84fb00ed71f8f7ba9fcb39532bdabb

    SHA512

    d512bf589b470317b28cd9c81802f71beb509846dd895b67e6b746eb9a916f226db51511ba24267894042cb1a6a74df95c23635152c8e1b18e5176e7c2fb3073

  • memory/1232-13-0x00007FF96A550000-0x00007FF96A745000-memory.dmp

    Filesize

    2.0MB

  • memory/1232-5-0x00007FF92A5D0000-0x00007FF92A5E0000-memory.dmp

    Filesize

    64KB

  • memory/1232-14-0x00007FF96A550000-0x00007FF96A745000-memory.dmp

    Filesize

    2.0MB

  • memory/1232-9-0x00007FF96A550000-0x00007FF96A745000-memory.dmp

    Filesize

    2.0MB

  • memory/1232-8-0x00007FF96A550000-0x00007FF96A745000-memory.dmp

    Filesize

    2.0MB

  • memory/1232-7-0x00007FF96A550000-0x00007FF96A745000-memory.dmp

    Filesize

    2.0MB

  • memory/1232-6-0x00007FF96A550000-0x00007FF96A745000-memory.dmp

    Filesize

    2.0MB

  • memory/1232-2-0x00007FF92A5D0000-0x00007FF92A5E0000-memory.dmp

    Filesize

    64KB

  • memory/1232-16-0x00007FF928160000-0x00007FF928170000-memory.dmp

    Filesize

    64KB

  • memory/1232-0-0x00007FF96A5ED000-0x00007FF96A5EE000-memory.dmp

    Filesize

    4KB

  • memory/1232-3-0x00007FF92A5D0000-0x00007FF92A5E0000-memory.dmp

    Filesize

    64KB

  • memory/1232-4-0x00007FF92A5D0000-0x00007FF92A5E0000-memory.dmp

    Filesize

    64KB

  • memory/1232-1-0x00007FF92A5D0000-0x00007FF92A5E0000-memory.dmp

    Filesize

    64KB

  • memory/1232-12-0x00007FF96A550000-0x00007FF96A745000-memory.dmp

    Filesize

    2.0MB

  • memory/1232-11-0x00007FF96A550000-0x00007FF96A745000-memory.dmp

    Filesize

    2.0MB

  • memory/1232-17-0x00007FF928160000-0x00007FF928170000-memory.dmp

    Filesize

    64KB

  • memory/1232-10-0x00007FF96A550000-0x00007FF96A745000-memory.dmp

    Filesize

    2.0MB

  • memory/1232-45-0x00007FF96A550000-0x00007FF96A745000-memory.dmp

    Filesize

    2.0MB

  • memory/1232-46-0x00007FF96A5ED000-0x00007FF96A5EE000-memory.dmp

    Filesize

    4KB

  • memory/1232-47-0x00007FF96A550000-0x00007FF96A745000-memory.dmp

    Filesize

    2.0MB

  • memory/1232-48-0x00007FF96A550000-0x00007FF96A745000-memory.dmp

    Filesize

    2.0MB

  • memory/1232-15-0x00007FF96A550000-0x00007FF96A745000-memory.dmp

    Filesize

    2.0MB