Analysis

  • max time kernel
    150s
  • max time network
    126s
  • 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, 04:38

General

  • Target
    528a641734e818154de7d088730f3963f25b448b407c312ddfa49471e614f19b.exe
  • Size 112KB
  • Sample260831-e9vgqadk9x
  • SHA256 528a641734e818154de7d088730f3963f25b448b407c312ddfa49471e614f19b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Checks system information in the registry 2 TTPs 2 IoCs

    System information is often read in order to detect sandboxing environments.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\528a641734e818154de7d088730f3963f25b448b407c312ddfa49471e614f19b.exe
    "C:\Users\Admin\AppData\Local\Temp\528a641734e818154de7d088730f3963f25b448b407c312ddfa49471e614f19b.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:372
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$aBA5D.bat
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5420
      • C:\Users\Admin\AppData\Local\Temp\528a641734e818154de7d088730f3963f25b448b407c312ddfa49471e614f19b.exe
        "C:\Users\Admin\AppData\Local\Temp\528a641734e818154de7d088730f3963f25b448b407c312ddfa49471e614f19b.exe"
        3⤵
        • Executes dropped EXE
        • Checks system information in the registry
        • Drops file in Windows directory
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        • System policy modification
        PID:5344
    • 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:5500
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5776
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4840

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 dbfd5b963953ee91964244697ee9be5c04c795620dfaff9b71781c31caeb2d6d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vcredist_x86.exe

        • Path C:\ProgramData\Package Cache\{61087a79-ac85-455c-934d-1fa22cc64f36}\vcredist_x86.exe
        • Size 481KB
        • SHA256 d5fbaf5c0d8e313d4dad23b28cac4256c5dbed6ab3b0d797e2971f30c5e095ad
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$aBA5D.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$aBA5D.bat
        • Size 722B
        • SHA256 4be331076e5a3afc5aee07306fda3d8b3715e54535f8139d85ae85319570f3ce
        • MD5 SHA1 SHA512 TLSH

        528a641734e818154de7d088730f3963f25b448b407c312ddfa49471e614f19b.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\528a641734e818154de7d088730f3963f25b448b407c312ddfa49471e614f19b.exe.exe
        • Size 86KB
        • SHA256 3087d18262fc4d8f7655389dc10e36d65d7acd5faceac52114bdffcb160ccc62
        • MD5 SHA1 SHA512 SSDEEP TLSH

        rundl132.exe

        • Path C:\Windows\rundl132.exe
        • Size 26KB
        • SHA256 738473777aa361ff7cf1cbb5b784299a29a81b92e066cd40a9c272ee79d43769
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _desktop.ini

        • Path F:\$RECYCLE.BIN\S-1-5-21-3986082593-3624157295-3514260330-1000\_desktop.ini
        • Size 9B
        • SHA256 48fc246849bbf8829b4f8949e19ffb9de4020b7e65df5ab0bdedfdbbdb956880
        • MD5 SHA1 SHA512

        memory/372-0-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/372-11-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5500-34-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5500-40-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5500-44-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5500-166-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5500-1253-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5500-27-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5500-5050-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5500-12-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/5500-5523-0x0000000000400000-0x0000000000434000-memory.dmp