Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    28/05/2026, 01:24

General

  • Target
    a1515436bcf60a304f1805aed0f2f4bd349c0b81c8a9ba6175f4605377b1319d.exe
  • Size 66KB
  • Sample260528-bscc2aex31
  • SHA256 a1515436bcf60a304f1805aed0f2f4bd349c0b81c8a9ba6175f4605377b1319d
  • 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 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\a1515436bcf60a304f1805aed0f2f4bd349c0b81c8a9ba6175f4605377b1319d.exe
    "C:\Users\Admin\AppData\Local\Temp\a1515436bcf60a304f1805aed0f2f4bd349c0b81c8a9ba6175f4605377b1319d.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1964
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a7B17.bat
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2100
      • C:\Users\Admin\AppData\Local\Temp\a1515436bcf60a304f1805aed0f2f4bd349c0b81c8a9ba6175f4605377b1319d.exe
        "C:\Users\Admin\AppData\Local\Temp\a1515436bcf60a304f1805aed0f2f4bd349c0b81c8a9ba6175f4605377b1319d.exe"
        3⤵
        • Executes dropped EXE
        PID:4236
    • 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:1532
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4556
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3308

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 128KB
        • SHA256 fe0dafc0d819f58b03a2548e70148eba61fc6ad2425253dc1bd406f9564b3d0b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 578KB
        • SHA256 48b6351df0a086e424470e34ae49d4a8a8ef66693a564394676f51c248b02a43
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vcredist_x86.exe

        • Path C:\ProgramData\Package Cache\{61087a79-ac85-455c-934d-1fa22cc64f36}\vcredist_x86.exe
        • Size 484KB
        • SHA256 2cd1ea7b5bc267846e0fb1ef348ecef353627fc52d6591b6cba1ff16408e44c8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$a7B17.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$a7B17.bat
        • Size 722B
        • SHA256 62e2a08d18348578bf44c4ffab126f7dcf57403760396732d62946da9d3fa0aa
        • MD5 SHA1 SHA512 TLSH

        a1515436bcf60a304f1805aed0f2f4bd349c0b81c8a9ba6175f4605377b1319d.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\a1515436bcf60a304f1805aed0f2f4bd349c0b81c8a9ba6175f4605377b1319d.exe.exe
        • Size 36KB
        • SHA256 8adf6748981c3e7b62f5dbca992be6675574fffbce7673743f2d7fe787d56a41
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Logo1_.exe

        • Path C:\Windows\Logo1_.exe
        • Size 29KB
        • SHA256 e1ebfc27e46e7a0c7458db5219cbe55db66a3380d921762f3beb3614734f11e5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _desktop.ini

        • Path F:\$RECYCLE.BIN\S-1-5-21-1636999435-3883760687-346127294-1000\_desktop.ini
        • Size 9B
        • SHA256 eb495551880bcb8ea0e05d68913bbd05fe45b2a14f467ff78323860c4b9ae1aa
        • MD5 SHA1 SHA512

        memory/1532-27-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1532-33-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1532-37-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1532-20-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1532-480-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1532-1224-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1532-9-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1532-5005-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1532-5508-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1964-0-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1964-13-0x0000000000400000-0x0000000000436000-memory.dmp