Analysis

  • max time kernel
    133s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/11/2024, 17:42

General

  • Target

    146232681def5a2f77ed65e8f098ed5cda6e4a4d2982d6f22395b3f8e860ccae.xlsm

  • Size

    32KB

  • MD5

    9831d54e84b419170c2b3925a977f4d6

  • SHA1

    f7121383166b8a11cf17d2a93baac76245078dd6

  • SHA256

    146232681def5a2f77ed65e8f098ed5cda6e4a4d2982d6f22395b3f8e860ccae

  • SHA512

    b9d3b8f3edd86e93ba1c34c24ce75d6f2a45aa63268b6771a4f630deb1ae7ddcec40f3753f6705a2028bac82a87a69d54ab7e447afea7d08a82a348b1f3cefad

  • SSDEEP

    384:sjzZPFhNjqEBOA7iEibbwBLg0SCdiVXUKgUrNU/qWhZOdBNPJM+kqr9eCgh0k5lY:sjpFhNNlizXT28dFfPdkqstJmE6/

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://casache.com/web/n3jxwXXwa/

xlm40.dropper

https://www.blessingsource.com/blessingsource.com/rFQ0Ip6lQXXK/

xlm40.dropper

http://ccalaire.com/wp-admin/d1pGRa0X/

xlm40.dropper

http://cdimprintpr.com/brochure2/A9NmYDndZ/

xlm40.dropper

http://careerplan.host20.uk/images/Ls/

xlm40.dropper

http://ausnz.net/2010wc/odSi5tQKkCIXEWl9/

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\146232681def5a2f77ed65e8f098ed5cda6e4a4d2982d6f22395b3f8e860ccae.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:1716
    • 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:5088

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

    3KB

    MD5

    3ba39ea5eed1181555189b9fb50dda17

    SHA1

    3cf419ebc55202dbfb87d278e19aa521ed8d95bb

    SHA256

    6076cb62b40e41c68ed70a812a9d8fee942cd4d9808cb8d640566b17d0f39201

    SHA512

    e4dc0a737957bcc98b545a25ce6fc173c120528dd56c0ebe8064f83510fb3941c05a7bd9b16d4580515705ee39ee46fc45efcf274f4f267d0f75efaf10fa1c9b

  • C:\Users\Admin\rfs.dll

    Filesize

    166KB

    MD5

    618ba093767c2f8e633e2c1e4cb05df3

    SHA1

    2b34a203ccc0cc4adb0779d1a21675b400b4423a

    SHA256

    44098f0de1aff178ffd21d6815b258a7ae88d0abae68bce4102fa4217fbdd0e2

    SHA512

    94f101f86ccea38f31cab12a2165ba752e1aec4023c85d978b1fca41a0d00d4af0419356659bc719a1248d4f5163927678397463b1297d77a0db8d17af15086a

  • memory/1716-17-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

    Filesize

    2.0MB

  • memory/1716-13-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

    Filesize

    2.0MB

  • memory/1716-5-0x00007FFEAF190000-0x00007FFEAF1A0000-memory.dmp

    Filesize

    64KB

  • memory/1716-4-0x00007FFEAF190000-0x00007FFEAF1A0000-memory.dmp

    Filesize

    64KB

  • memory/1716-8-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

    Filesize

    2.0MB

  • memory/1716-12-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

    Filesize

    2.0MB

  • memory/1716-19-0x00007FFEAD130000-0x00007FFEAD140000-memory.dmp

    Filesize

    64KB

  • memory/1716-14-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

    Filesize

    2.0MB

  • memory/1716-16-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

    Filesize

    2.0MB

  • memory/1716-18-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

    Filesize

    2.0MB

  • memory/1716-0-0x00007FFEAF190000-0x00007FFEAF1A0000-memory.dmp

    Filesize

    64KB

  • memory/1716-1-0x00007FFEEF1AD000-0x00007FFEEF1AE000-memory.dmp

    Filesize

    4KB

  • memory/1716-7-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

    Filesize

    2.0MB

  • memory/1716-11-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

    Filesize

    2.0MB

  • memory/1716-10-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

    Filesize

    2.0MB

  • memory/1716-9-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

    Filesize

    2.0MB

  • memory/1716-15-0x00007FFEAD130000-0x00007FFEAD140000-memory.dmp

    Filesize

    64KB

  • memory/1716-6-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

    Filesize

    2.0MB

  • memory/1716-47-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

    Filesize

    2.0MB

  • memory/1716-48-0x00007FFEEF1AD000-0x00007FFEEF1AE000-memory.dmp

    Filesize

    4KB

  • memory/1716-49-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

    Filesize

    2.0MB

  • memory/1716-51-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

    Filesize

    2.0MB

  • memory/1716-3-0x00007FFEAF190000-0x00007FFEAF1A0000-memory.dmp

    Filesize

    64KB

  • memory/1716-2-0x00007FFEAF190000-0x00007FFEAF1A0000-memory.dmp

    Filesize

    64KB