Analysis

  • max time kernel
    150s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-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:3924
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$aE4C2.bat
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4760
      • C:\Users\Admin\AppData\Local\Temp\8d2c73900c2022c58c3b6de19bf6ea76d78134a506914f285d4b73e4db6a57ac.exe
        "C:\Users\Admin\AppData\Local\Temp\8d2c73900c2022c58c3b6de19bf6ea76d78134a506914f285d4b73e4db6a57ac.exe"
        3⤵
        • Executes dropped EXE
        PID:3852
    • 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:1528
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1352
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1192

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        MicrosoftEdgeUpdateBroker.exe

        • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\1.3.147.37\MicrosoftEdgeUpdateBroker.exe
        • Size 128KB
        • SHA256 9d40c765cfbf19c31d08c5dca79a7bd39a0ea2fc66cd3461dd8c0ce86333c2a6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TestGroup.exe

        • Path C:\Program Files\TestGroup.exe
        • Size 761KB
        • SHA256 03efa3f146e04660602434d99b0fd12cb3362699d33321d4d2a22d3e49895848
        • 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

        $$aE4C2.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$aE4C2.bat
        • Size 722B
        • SHA256 f5916174d4cb4c845bb24f06c96f6ead788b6d610c694df88bf8db767789ba5a
        • 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-1-5-21-745935970-1373868228-562466063-1000\_desktop.ini
        • Size 9B
        • SHA256 4ecdb3ab0629b2ff57d73171ba1956fd448f7a99fddfa39cd15bb955fb39e040
        • MD5 SHA1 SHA512

        memory/1528-28-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1528-21-0x0000000000470000-0x00000000004D3000-memory.dmp

        memory/1528-20-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1528-36-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1528-42-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1528-593-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1528-1255-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1528-10-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1528-5046-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1528-5561-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/3924-0-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/3924-13-0x00000000006A0000-0x0000000000703000-memory.dmp

        memory/3924-8-0x0000000000400000-0x0000000000436000-memory.dmp