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Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11/11/2024, 21:27

General

  • Target

    87ec8b6572dcbffe635e0727af61a071b6f38a52a009f93c5b9b6016c77f1ec2.xls

  • Size

    142KB

  • MD5

    50cfa17901314c512629f9cb2373c222

  • SHA1

    47ce5bb1efe924260f8653baaea8c9d0ad3cccb2

  • SHA256

    87ec8b6572dcbffe635e0727af61a071b6f38a52a009f93c5b9b6016c77f1ec2

  • SHA512

    ec383e5176fc8c521b83ff47d7578bb00115f97c1b83c5d272ce4fe0956510b32611191584bf7c93e9e0b339ce7b7ea50db8d3a2e737c25e93faca6c2fe26b4c

  • SSDEEP

    3072:kfKpbdrHYrMue8q7QPX+5xtekEdi8/dgR/c/mrWmngyYXnMJelsSKThsdskl4WjN:8KpbdrHYrMue8q7QPX+5xtFEdi8/dgRQ

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://www.certika-bolivia.com/omeltxveatup/9Gb/

xlm40.dropper

https://www.cfoodsnepal.com/index/rvAYVKkJgVWiCwt0wV/

xlm40.dropper

https://www.cgaei.com/fonts/ABuQi/

xlm40.dropper

https://www.chotdonhang.com/noi-dung/w1hMfkjuwAne4W2epiP/

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 2 IoCs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\87ec8b6572dcbffe635e0727af61a071b6f38a52a009f93c5b9b6016c77f1ec2.xls
    1⤵
    • System Location Discovery: System Language Discovery
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2396
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\lnau.dll
      2⤵
      • Process spawned unexpected child process
      • System Location Discovery: System Language Discovery
      PID:2872

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\lnau.dll

    Filesize

    85KB

    MD5

    6fc3ffa704f60b13e573a7500bafa340

    SHA1

    59e4f640f6d5182405bba02609f61748c09186c3

    SHA256

    42419aa4985bfebd61be3c227cce2045ee89db918492e16266aac6597cd7bcaa

    SHA512

    fe0d57871cd27272e5e312fffc3fb8377797f19c3472caae2eb9ca91c2b65adbff8b99f1c7c253a37621417e4e43a3e4593c6a3f660d8085f58ac7b935bfe8d8

  • memory/2396-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2396-1-0x0000000072CED000-0x0000000072CF8000-memory.dmp

    Filesize

    44KB

  • memory/2396-26-0x0000000072CED000-0x0000000072CF8000-memory.dmp

    Filesize

    44KB