Analysis

  • max time kernel
    149s
  • max time network
    93s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    17/04/2026, 07:50

General

  • Target
    8d2c73900c2022c58c3b6de19bf6ea76d78134a506914f285d4b73e4db6a57ac.exe
  • Size 66KB
  • Sample260417-jph1eaht6n
  • SHA256 8d2c73900c2022c58c3b6de19bf6ea76d78134a506914f285d4b73e4db6a57ac
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Viking

    Viking is a Windows worm written in Delphi.

  • Detects Viking 14 IoCs
  • 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\8d2c73900c2022c58c3b6de19bf6ea76d78134a506914f285d4b73e4db6a57ac.exe
    "C:\Users\Admin\AppData\Local\Temp\8d2c73900c2022c58c3b6de19bf6ea76d78134a506914f285d4b73e4db6a57ac.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:836
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a3767.bat
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2128
      • C:\Users\Admin\AppData\Local\Temp\8d2c73900c2022c58c3b6de19bf6ea76d78134a506914f285d4b73e4db6a57ac.exe
        "C:\Users\Admin\AppData\Local\Temp\8d2c73900c2022c58c3b6de19bf6ea76d78134a506914f285d4b73e4db6a57ac.exe"
        3⤵
        • Executes dropped EXE
        PID:3600
    • 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:1176
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3912
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4628

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 1a1e85277b64d2b253cafc369a7d300466feea91c6fc611a1f989c2b77af2530
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 578KB
        • SHA256 98ea255de4a3ad36d0efd32ed7f2e4524d08be01caaac265bbc5c3f50ef6a5af
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vcredist_x86.exe

        • Path C:\ProgramData\Package Cache\{61087a79-ac85-455c-934d-1fa22cc64f36}\vcredist_x86.exe
        • Size 484KB
        • SHA256 145b05019248756bb55c20f5665f47f66f36a17b7a26d76fa59e522c9706b5d6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$a3767.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$a3767.bat
        • Size 722B
        • SHA256 140a34d3afd49a3e283e0b67160151f8246b7adfe9fb1ae76a07d28aaee1c5a9
        • MD5 SHA1 SHA512 TLSH

        8d2c73900c2022c58c3b6de19bf6ea76d78134a506914f285d4b73e4db6a57ac.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\8d2c73900c2022c58c3b6de19bf6ea76d78134a506914f285d4b73e4db6a57ac.exe.exe
        • Size 36KB
        • SHA256 8adf6748981c3e7b62f5dbca992be6675574fffbce7673743f2d7fe787d56a41
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Logo1_.exe

        • Path C:\Windows\Logo1_.exe
        • Size 29KB
        • SHA256 67660811212ac4b7df8269485c00975cff46e9967ce6d0c344f767c49562b073
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _desktop.ini

        • Path F:\$RECYCLE.BIN\S-1-5-21-2122505878-652277452-2375749442-1000\_desktop.ini
        • Size 9B
        • SHA256 4ecdb3ab0629b2ff57d73171ba1956fd448f7a99fddfa39cd15bb955fb39e040
        • MD5 SHA1 SHA512

        memory/836-11-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/836-0-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1176-27-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1176-37-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1176-33-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1176-675-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1176-1224-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1176-20-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1176-5005-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1176-8-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1176-5508-0x0000000000400000-0x0000000000436000-memory.dmp