Analysis

  • max time kernel
    149s
  • max time network
    100s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    14/04/2026, 01:52

General

  • Target
    9a7daafc56300bd94ceef23eac56a0735b63ec6b9a7a409fb5a9b63efe1aa0b0.exe
  • Size 179KB
  • Sample260414-capfbaav6q
  • SHA256 9a7daafc56300bd94ceef23eac56a0735b63ec6b9a7a409fb5a9b63efe1aa0b0
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: HelloKitty Ransomware

    Ransomware family which has been active since late 2020, and in early 2021 a variant compromised the CDProjektRed game studio.

  • Renames multiple (149) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\9a7daafc56300bd94ceef23eac56a0735b63ec6b9a7a409fb5a9b63efe1aa0b0.exe
    "C:\Users\Admin\AppData\Local\Temp\9a7daafc56300bd94ceef23eac56a0735b63ec6b9a7a409fb5a9b63efe1aa0b0.exe"
    1⤵
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3112
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C ping 127.0.0.1 & del 9a7daafc56300bd94ceef23eac56a0735b63ec6b9a7a409fb5a9b63efe1aa0b0.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:1504
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:844
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:5176

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        read_me_lkdtt.txt

        • Path C:\Users\Admin\Desktop\read_me_lkdtt.txt
        • Size 1KB
        • SHA256 97109718795f688bdeaec143eff588df1f053c5f1be69fdfd953c8751132fd3f
        • MD5 SHA1 SHA512 TLSH

        memory/5176-340-0x000001D2663A0000-0x000001D266476000-memory.dmp