Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    02/06/2026, 08:24

General

  • Target
    99ff13d55d4d2f38091f62a398492028ba681674c37ee9aa1c8800c39f54f431.exe
  • Size 3.1MB
  • Sample260602-kap1vah18l
  • SHA256 99ff13d55d4d2f38091f62a398492028ba681674c37ee9aa1c8800c39f54f431
  • 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
  • System Location Discovery: System Language Discovery 1 TTPs 6 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\99ff13d55d4d2f38091f62a398492028ba681674c37ee9aa1c8800c39f54f431.exe
    "C:\Users\Admin\AppData\Local\Temp\99ff13d55d4d2f38091f62a398492028ba681674c37ee9aa1c8800c39f54f431.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1196
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a3C77.bat
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3252
      • C:\Users\Admin\AppData\Local\Temp\99ff13d55d4d2f38091f62a398492028ba681674c37ee9aa1c8800c39f54f431.exe
        "C:\Users\Admin\AppData\Local\Temp\99ff13d55d4d2f38091f62a398492028ba681674c37ee9aa1c8800c39f54f431.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1720
    • 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:3388
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3324
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1740

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        MicrosoftEdgeUpdateBroker.exe

        • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\1.3.143.57\MicrosoftEdgeUpdateBroker.exe
        • Size 125KB
        • SHA256 2ff1e7ead1473f185bb358c86a3e4678ba383f83dbc47d673e93319b1313b01d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 575KB
        • SHA256 8e68d7d22039fbc25e82c92c888ed185aa32cd1ce44600520c471760babe07cd
        • 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

        $$a3C77.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$a3C77.bat
        • Size 722B
        • SHA256 4f993ae0c37934f50ce56c55259dda19b197a866ecf33e8ef476a054a3d9f8cf
        • MD5 SHA1 SHA512 TLSH

        99ff13d55d4d2f38091f62a398492028ba681674c37ee9aa1c8800c39f54f431.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\99ff13d55d4d2f38091f62a398492028ba681674c37ee9aa1c8800c39f54f431.exe.exe
        • Size 3.0MB
        • SHA256 000869da47e788b89ed5355bcd379c6f75454f2e5025139fe58e2ff530c88332
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Logo1_.exe

        • Path C:\Windows\Logo1_.exe
        • Size 26KB
        • SHA256 9ce4f790a3ad9cb93ba0b875d0888db7e560fbbbceb022a1624252a26dde4db2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _desktop.ini

        • Path F:\$RECYCLE.BIN\S-1-5-21-2824035265-2271499813-2042964211-1000\_desktop.ini
        • Size 8B
        • SHA256 e2216e9f68ad9e2b4808eebcb8f03d71f7490b447fa87bf0fc3a1d28d604dcf0
        • MD5 SHA1 SHA512

        memory/1196-10-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/1196-0-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/3388-27-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/3388-37-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/3388-33-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/3388-418-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/3388-1224-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/3388-20-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/3388-5005-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/3388-8-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/3388-5502-0x0000000000400000-0x0000000000434000-memory.dmp