Overview

overview

10

Static

static

10

8f87c47d2c...44.exe

windows10-2004-x64

9

8f87c47d2c...44.exe

windows11-ltsc_2024-x64

9

Analysis

  • user interaction
    yes
  • max time kernel
    148s
  • max time network
    120s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/09/2026, 15:16

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    8f87c47d2cd49eb5d0cc2dbcedf9822c74dcb8e87670ed3f1ec9f5a0d0a74844.exe
  • Size 147KB
  • Sample260930-snqhjav13l
  • SHA256 8f87c47d2cd49eb5d0cc2dbcedf9822c74dcb8e87670ed3f1ec9f5a0d0a74844
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
defense_evasiondiscoveryransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (569) files with added filename extension

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

    ransomware
  • Deletes itself 1 TTPs 1 IoCs
    defense_evasion
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Drops desktop.ini file(s) 2 IoCs
  • Enumerates connected drives 3 TTPs 3 IoCs

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

  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 1 IoCs
    defense_evasion
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

    discovery
  • 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.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 24 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Control Panel 2 IoCs
    defense_evasion
  • Modifies registry class 5 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 15 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f87c47d2cd49eb5d0cc2dbcedf9822c74dcb8e87670ed3f1ec9f5a0d0a74844.exe
    "C:\Users\Admin\AppData\Local\Temp\8f87c47d2cd49eb5d0cc2dbcedf9822c74dcb8e87670ed3f1ec9f5a0d0a74844.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1308
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      • Checks SCSI registry key(s)
      PID:7044
    • C:\ProgramData\C5C8.tmp
      "C:\ProgramData\C5C8.tmp"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:2312
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\C5C8.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1100
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:7100
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      • Suspicious use of WriteProcessMemory
      PID:1292
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{E5615DE5-FBE0-457A-B12B-21DEC64C44D9}.xps" 134352550169750000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:4912
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:3256

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            YYYYYYYYYYY
            • Path C:\$Recycle.Bin\S-1-5-21-2304238888-3968896904-642854331-1000\YYYYYYYYYYY
            • Size 129B
            • SHA256 19cf82996640d9676ce6914f06bc317911fb212c4e891e6547524a5628c158d7
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            Gq1CCpPbK.README.txt
            • Path C:\Gq1CCpPbK.README.txt
            • Size 1KB
            • SHA256 0bca7b7196e727a7155525b00f6c72438845831132c949d7fab0c67555eec88d
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            C5C8.tmp
            • Path C:\ProgramData\C5C8.tmp
            • Size 14KB
            • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
            • Path C:\Users\Admin\AppData\Local\Temp\CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
            • Size 147KB
            • SHA256 5a110825680d7dc4e8c71987fddb96f9672625a2c5cb7362a79199b5680036f1
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            Open Notebook.onetoc2
            • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
            • Size 4KB
            • SHA256 29fa8b41a5669b5f768434d2469e58f6933da1ddd39119949525738b54d881c5
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            DDDDDDDDDDD
            • Path F:\$RECYCLE.BIN\S-1-5-21-2304238888-3968896904-642854331-1000\DDDDDDDDDDD
            • Size 129B
            • SHA256 ac9d09b00c1a6c06b7648ae9d8579c34aae31177c070c88cba9023f60f9818c9
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            memory/1308-0-0x00000000033F0000-0x0000000003400000-memory.dmp
            Download

            memory/1308-2-0x00000000033F0000-0x0000000003400000-memory.dmp
            Download

            memory/1308-1028-0x00000000033F0000-0x0000000003400000-memory.dmp
            Download

            memory/1308-1029-0x00000000033F0000-0x0000000003400000-memory.dmp
            Download

            memory/1308-1-0x00000000033F0000-0x0000000003400000-memory.dmp
            Download

            memory/4912-1041-0x00007FFF9CF20000-0x00007FFF9CF30000-memory.dmp
            Download

            memory/4912-1047-0x00007FFF9CF20000-0x00007FFF9CF30000-memory.dmp
            Download

            memory/4912-1044-0x00007FFF9CF20000-0x00007FFF9CF30000-memory.dmp
            Download

            memory/4912-1042-0x00007FFF9CF20000-0x00007FFF9CF30000-memory.dmp
            Download

            memory/4912-1075-0x00007FFF9A700000-0x00007FFF9A710000-memory.dmp
            Download

            memory/4912-1076-0x00007FFF9A700000-0x00007FFF9A710000-memory.dmp
            Download

            memory/4912-1040-0x00007FFF9CF20000-0x00007FFF9CF30000-memory.dmp
            Download

            memory/4912-1125-0x00007FFF9CF20000-0x00007FFF9CF30000-memory.dmp
            Download

            memory/4912-1126-0x00007FFF9CF20000-0x00007FFF9CF30000-memory.dmp
            Download

            memory/4912-1124-0x00007FFF9CF20000-0x00007FFF9CF30000-memory.dmp
            Download

            memory/4912-1123-0x00007FFF9CF20000-0x00007FFF9CF30000-memory.dmp
            Download