Analysis

  • max time kernel
    133s
  • 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 17:42

General

  • Target

    10f3e425615b3c4b3f10fed7215c5a070abcd31b21e839d5e05ad652d128b11e.xlsm

  • Size

    30KB

  • MD5

    1f0eda9cd962ec899d52ddeab33b27a5

  • SHA1

    8aa6242b4c2a6844609b2e3820ce4e747ac5eadd

  • SHA256

    10f3e425615b3c4b3f10fed7215c5a070abcd31b21e839d5e05ad652d128b11e

  • SHA512

    e55425b5dafa1a1f517447633d34b94d132e8e74aa007b030bb2701cb20706db36bb32473c38a9ac7e00f2f9d4858265ba853c2721f7d459eae8728662f11dc5

  • SSDEEP

    384:LwdAZPFhNjUA7icg0SCdiVAg2GKgUrNU/qWhZOdBNPJM+kqr9eCgh0k5NGE6h:cdwFhNbiH2rndFfPdkqstJNGE6h

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://www.ajaxmatters.com/c7g8t/hAQX/

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\10f3e425615b3c4b3f10fed7215c5a070abcd31b21e839d5e05ad652d128b11e.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:4332
    • 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:4720

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

    671B

    MD5

    cff067e3ac62a4d9f71295c5ffdcac0a

    SHA1

    dc998ee40eba2d8872962f0e46af21344c9b83ff

    SHA256

    b0483a6c682b56461c59b131441df0566eb4c1ca908f853ae030e4bd5d4326a6

    SHA512

    c6da76a0e5c9150ac7806eea3cccbf9fafac0adcc1b072c873c9a42a752d8b9da26253e8d0307669b427f77bb227af04fdbf99e40e9bd56cfcb66e6d434e4b18

  • C:\Users\Admin\rfs.dll

    Filesize

    23KB

    MD5

    4ed8ca5542b641fddd200acebadf4e3c

    SHA1

    41fd7fb6cb84805fbc229cbf13620f80a5008003

    SHA256

    3f03ee986c82c3be72da6272448f92d97426f53e07079334edeb502f6386cc33

    SHA512

    866719609b7200cdd4d97b6a83d7fb6424d3900b555e23d2db8744539b1ae204c0da0a5e595c676ee4cad7df3f743aad1e746c750cd30afe3a74d89bf188979a

  • memory/4332-2-0x00007FFC05F50000-0x00007FFC05F60000-memory.dmp

    Filesize

    64KB

  • memory/4332-12-0x00007FFC03EF0000-0x00007FFC03F00000-memory.dmp

    Filesize

    64KB

  • memory/4332-6-0x00007FFC45ED0000-0x00007FFC460C5000-memory.dmp

    Filesize

    2.0MB

  • memory/4332-4-0x00007FFC05F50000-0x00007FFC05F60000-memory.dmp

    Filesize

    64KB

  • memory/4332-8-0x00007FFC45ED0000-0x00007FFC460C5000-memory.dmp

    Filesize

    2.0MB

  • memory/4332-7-0x00007FFC45ED0000-0x00007FFC460C5000-memory.dmp

    Filesize

    2.0MB

  • memory/4332-10-0x00007FFC45ED0000-0x00007FFC460C5000-memory.dmp

    Filesize

    2.0MB

  • memory/4332-9-0x00007FFC45ED0000-0x00007FFC460C5000-memory.dmp

    Filesize

    2.0MB

  • memory/4332-1-0x00007FFC45F6D000-0x00007FFC45F6E000-memory.dmp

    Filesize

    4KB

  • memory/4332-5-0x00007FFC05F50000-0x00007FFC05F60000-memory.dmp

    Filesize

    64KB

  • memory/4332-11-0x00007FFC45ED0000-0x00007FFC460C5000-memory.dmp

    Filesize

    2.0MB

  • memory/4332-13-0x00007FFC03EF0000-0x00007FFC03F00000-memory.dmp

    Filesize

    64KB

  • memory/4332-3-0x00007FFC05F50000-0x00007FFC05F60000-memory.dmp

    Filesize

    64KB

  • memory/4332-35-0x00007FFC45ED0000-0x00007FFC460C5000-memory.dmp

    Filesize

    2.0MB

  • memory/4332-36-0x00007FFC45F6D000-0x00007FFC45F6E000-memory.dmp

    Filesize

    4KB

  • memory/4332-37-0x00007FFC45ED0000-0x00007FFC460C5000-memory.dmp

    Filesize

    2.0MB

  • memory/4332-38-0x00007FFC45ED0000-0x00007FFC460C5000-memory.dmp

    Filesize

    2.0MB

  • memory/4332-0-0x00007FFC05F50000-0x00007FFC05F60000-memory.dmp

    Filesize

    64KB