Analysis

  • max time kernel
    133s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-11-2024 22:50

General

  • Target

    c8e18f4eb2ca9bb8c6a1e6c59eb6fd57c752e93c87efe4fe4e974963cc20f8da.xlsm

  • Size

    21KB

  • MD5

    05b93aed69dfea0b593ee4c21505f757

  • SHA1

    44f397a0a48da8159cd8c89fe88e2819e83759ca

  • SHA256

    c8e18f4eb2ca9bb8c6a1e6c59eb6fd57c752e93c87efe4fe4e974963cc20f8da

  • SHA512

    e1f17a6f29fd28ec3dfe2c33aab50f4c66f7301c30bc743af3632fd72e2f35b057b7a1431a8f98e0008654ac20d854c3534d9c77e6efcfea59d441f90b567483

  • SSDEEP

    384:Y8c5hAuAi/NjxhS8EibbwBlwcSYrLb5CzgObff9kC+xbX7T/1SeyB:YPksNPzXSFCBn9kC+xbLTc9

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://astroadvicebaba.com/assets/jYlBTPcWJTsTtamDfX/

xlm40.dropper

https://physioacademy.co.uk/conditions/8I3WSx5t2k/

xlm40.dropper

http://orchidbg.com/aeeiludqootr/OcnjiLHL/

xlm40.dropper

https://westthamesphysio.com/blog/3tsZIz09Sox1Z/

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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 3 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\c8e18f4eb2ca9bb8c6a1e6c59eb6fd57c752e93c87efe4fe4e974963cc20f8da.xlsm"
    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:3420
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\rfs.dll
      2⤵
      • Process spawned unexpected child process
      • System Location Discovery: System Language Discovery
      PID:2380

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

    5b4be331604370e0ff64d9f334167f72

    SHA1

    b8e8026524685ba8d02967f1249f35f0d6eb79c7

    SHA256

    4a39c8da67724319327840fb50262388ca6128b7fb8707593a5150a5c06906a6

    SHA512

    548feb5e8bb1d6ced12abc3cff562dd21b2ddd11c294c836932e5ea91e9822d4a1bb7359a057dfdefb4d9b7ce10b0959fbf680145ea93b214e5c8ad6fb37bb09

  • C:\Users\Admin\rfs.dll

    Filesize

    966B

    MD5

    1a8978d9d37041fe0089728cd6c23233

    SHA1

    f0485019f25ee50bb77f23081a8964e28e56cfb2

    SHA256

    87a97454942b85b5afc9cb9733bb7ce96cdf3422f6bfc95823f8edf6b2e2c607

    SHA512

    9ea43ede1eab73d3ac65bc3e9c13836c51d768daf5e300a0f57a26c0ca9cb2655455e5731664a92c969520dc05f7c71292d6a947405e06c2b1f88a399cd8d42b

  • memory/3420-15-0x00007FFC10BD0000-0x00007FFC10DC5000-memory.dmp

    Filesize

    2.0MB

  • memory/3420-1-0x00007FFC10C6D000-0x00007FFC10C6E000-memory.dmp

    Filesize

    4KB

  • memory/3420-0-0x00007FFBD0C50000-0x00007FFBD0C60000-memory.dmp

    Filesize

    64KB

  • memory/3420-9-0x00007FFC10BD0000-0x00007FFC10DC5000-memory.dmp

    Filesize

    2.0MB

  • memory/3420-11-0x00007FFC10BD0000-0x00007FFC10DC5000-memory.dmp

    Filesize

    2.0MB

  • memory/3420-12-0x00007FFC10BD0000-0x00007FFC10DC5000-memory.dmp

    Filesize

    2.0MB

  • memory/3420-13-0x00007FFBCEA70000-0x00007FFBCEA80000-memory.dmp

    Filesize

    64KB

  • memory/3420-10-0x00007FFC10BD0000-0x00007FFC10DC5000-memory.dmp

    Filesize

    2.0MB

  • memory/3420-5-0x00007FFBD0C50000-0x00007FFBD0C60000-memory.dmp

    Filesize

    64KB

  • memory/3420-18-0x00007FFC10BD0000-0x00007FFC10DC5000-memory.dmp

    Filesize

    2.0MB

  • memory/3420-7-0x00007FFC10BD0000-0x00007FFC10DC5000-memory.dmp

    Filesize

    2.0MB

  • memory/3420-8-0x00007FFC10BD0000-0x00007FFC10DC5000-memory.dmp

    Filesize

    2.0MB

  • memory/3420-14-0x00007FFC10BD0000-0x00007FFC10DC5000-memory.dmp

    Filesize

    2.0MB

  • memory/3420-17-0x00007FFC10BD0000-0x00007FFC10DC5000-memory.dmp

    Filesize

    2.0MB

  • memory/3420-19-0x00007FFC10BD0000-0x00007FFC10DC5000-memory.dmp

    Filesize

    2.0MB

  • memory/3420-16-0x00007FFBCEA70000-0x00007FFBCEA80000-memory.dmp

    Filesize

    64KB

  • memory/3420-4-0x00007FFBD0C50000-0x00007FFBD0C60000-memory.dmp

    Filesize

    64KB

  • memory/3420-3-0x00007FFBD0C50000-0x00007FFBD0C60000-memory.dmp

    Filesize

    64KB

  • memory/3420-6-0x00007FFC10BD0000-0x00007FFC10DC5000-memory.dmp

    Filesize

    2.0MB

  • memory/3420-37-0x00007FFC10BD0000-0x00007FFC10DC5000-memory.dmp

    Filesize

    2.0MB

  • memory/3420-38-0x00007FFC10C6D000-0x00007FFC10C6E000-memory.dmp

    Filesize

    4KB

  • memory/3420-39-0x00007FFC10BD0000-0x00007FFC10DC5000-memory.dmp

    Filesize

    2.0MB

  • memory/3420-2-0x00007FFBD0C50000-0x00007FFBD0C60000-memory.dmp

    Filesize

    64KB