Analysis

  • max time kernel
    149s
  • max time network
    128s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/08/2026, 04:07

General

  • Target
    b90df8dcc529efbdde0793b5965b6c51c3efa7a889ac7ab6de3cde13b28d095a.exe
  • Size 583KB
  • Sample260831-ep2qasvbkf
  • SHA256 b90df8dcc529efbdde0793b5965b6c51c3efa7a889ac7ab6de3cde13b28d095a
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b90df8dcc529efbdde0793b5965b6c51c3efa7a889ac7ab6de3cde13b28d095a.exe
    "C:\Users\Admin\AppData\Local\Temp\b90df8dcc529efbdde0793b5965b6c51c3efa7a889ac7ab6de3cde13b28d095a.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4352
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a7209.bat
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3936
      • C:\Users\Admin\AppData\Local\Temp\b90df8dcc529efbdde0793b5965b6c51c3efa7a889ac7ab6de3cde13b28d095a.exe
        "C:\Users\Admin\AppData\Local\Temp\b90df8dcc529efbdde0793b5965b6c51c3efa7a889ac7ab6de3cde13b28d095a.exe"
        3⤵
        • Executes dropped EXE
        PID:4880
    • C:\Windows\Logo1_.exe
      C:\Windows\Logo1_.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5836
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2360
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3384

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        MicrosoftEdgeUpdateBroker.exe

        • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\1.3.185.27\MicrosoftEdgeUpdateBroker.exe
        • Size 124KB
        • SHA256 3ae31c96d842f5edd2a109ca1a38b70f6acf3950ec7f51d18a65f448a6f58117
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vcredist_x86.exe

        • Path C:\ProgramData\Package Cache\{61087a79-ac85-455c-934d-1fa22cc64f36}\vcredist_x86.exe
        • Size 481KB
        • SHA256 297984cb1c691abf3614c0c64ed3ed1b8cbf2e2f2efae02e5392e110a717394c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$a7209.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$a7209.bat
        • Size 722B
        • SHA256 d1dfa882e0aa7f141cbdaab9a318915b6ec6669d792a9ca7b09fedf9fa1e66de
        • MD5 SHA1 SHA512 TLSH

        b90df8dcc529efbdde0793b5965b6c51c3efa7a889ac7ab6de3cde13b28d095a.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\b90df8dcc529efbdde0793b5965b6c51c3efa7a889ac7ab6de3cde13b28d095a.exe.exe
        • Size 557KB
        • SHA256 956314ce4abf95cb91ff32bca737a615dc38bcb1fb349a96e4e4fa5fd64252ca
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Logo1_.exe

        • Path C:\Windows\Logo1_.exe
        • Size 26KB
        • SHA256 ef3803b8356ae36cc987c4f812d380ab37cf4e8198e8ea39ba40f4f17fd95179
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _desktop.ini

        • Path F:\$RECYCLE.BIN\S-1-5-21-3989226554-2204910950-1522900112-1000\_desktop.ini
        • Size 9B
        • SHA256 48fc246849bbf8829b4f8949e19ffb9de4020b7e65df5ab0bdedfdbbdb956880
        • MD5 SHA1 SHA512

        memory/4352-0-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/4352-11-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/4880-21-0x00007FFE500DF000-0x00007FFE500E0000-memory.dmp

        memory/4880-24-0x0000016ECB4F0000-0x0000016ECB57E000-memory.dmp

        memory/4880-26-0x00007FFE4FF50000-0x00007FFE508F4000-memory.dmp

        memory/4880-27-0x00007FFE4FF50000-0x00007FFE508F4000-memory.dmp

        memory/4880-23-0x00007FFE4FF50000-0x00007FFE508F4000-memory.dmp

        memory/4880-31-0x00007FFE4FF50000-0x00007FFE508F4000-memory.dmp

        memory/4880-22-0x00007FFE4FF50000-0x00007FFE508F4000-memory.dmp

        memory/5836-29-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5836-44-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5836-48-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5836-196-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5836-1255-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5836-38-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5836-5052-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5836-12-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5836-5525-0x0000000000400000-0x0000000000434000-memory.dmp