Overview

overview

10

Static

static

5dfb5d45ed...le.exe

windows7_x64

10

5dfb5d45ed...le.exe

windows10_x64

10

Analysis

  • max time kernel
    140s
  • max time network
    163s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    26/07/2021, 12:42

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    5dfb5d45ed584b28ec54b07b3ce1259949cdec7cb28b83802fa0ce00efe6c286.sample.exe
  • Size 3.4MB
  • Sample210726-kml95tv9rx
  • SHA256 5dfb5d45ed584b28ec54b07b3ce1259949cdec7cb28b83802fa0ce00efe6c286
  • MD5 SHA1 SHA512
Score
10/10
wannacrydiscoverypersistenceransomwarespywarestealerworm

Malware Config

Extracted

Path

  • wannacry

Ransom Note
  • Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions, we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw Next, please find an application file named "@[email protected]". It is the decrypt software. Run and follow the instructions! (You may need to disable your antivirus for a while.) Q: How can I trust? A: Don't worry about decryption. We will decrypt your files surely because nobody will trust us if we cheat users. * If you need our assistance, send a message by clicking <Contact Us> on the decryptor window. �
Wallets

  • 12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw

Signatures

  • Wannacry

    WannaCry is a ransomware cryptoworm.

    ransomwarewormwannacry
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Executes dropped EXE 16 IoCs
  • Modifies extensions of user files 16 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Drops startup file 2 IoCs
  • Loads dropped DLL 8 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
    discovery
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\5dfb5d45ed584b28ec54b07b3ce1259949cdec7cb28b83802fa0ce00efe6c286.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\5dfb5d45ed584b28ec54b07b3ce1259949cdec7cb28b83802fa0ce00efe6c286.sample.exe"
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Sets desktop wallpaper using registry
    • Suspicious use of WriteProcessMemory
    PID:3968
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h .
      2⤵
      • Views/modifies file attributes
      PID:1440
    • C:\Windows\SysWOW64\icacls.exe
      icacls . /grant Everyone:F /T /C /Q
      2⤵
      • Modifies file permissions
      PID:1608
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:2864
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c 40981627305439.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3552
      • C:\Windows\SysWOW64\cscript.exe
        cscript.exe //nologo m.vbs
        3⤵
          PID:3612
      • C:\Users\Admin\AppData\Local\Temp\@[email protected]
        @[email protected] co
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3428
        • C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exe
          TaskData\Tor\taskhsvc.exe
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          PID:3064
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c start /b @[email protected] vs
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1904
        • C:\Users\Admin\AppData\Local\Temp\@[email protected]
          @[email protected] vs
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:192
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /c vssadmin delete shadows /all /quiet & wmic shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no & wbadmin delete catalog -quiet
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:3984
            • C:\Windows\SysWOW64\vssadmin.exe
              vssadmin delete shadows /all /quiet
              5⤵
              • Interacts with shadow copies
              PID:2688
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic shadowcopy delete
              5⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:2152
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:3120
      • C:\Users\Admin\AppData\Local\Temp\taskse.exe
        taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1624
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "dfevzalm316" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1668
        • C:\Windows\SysWOW64\reg.exe
          reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "dfevzalm316" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
          3⤵
          • Adds Run key to start application
          • Modifies registry key
          PID:2064
      • C:\Users\Admin\AppData\Local\Temp\@[email protected]
        @[email protected]
        2⤵
        • Executes dropped EXE
        • Sets desktop wallpaper using registry
        • Suspicious use of SetWindowsHookEx
        PID:2040
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:2240
      • C:\Users\Admin\AppData\Local\Temp\taskse.exe
        taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:3604
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:2588
      • C:\Users\Admin\AppData\Local\Temp\taskse.exe
        taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:4028
      • C:\Users\Admin\AppData\Local\Temp\taskse.exe
        taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:4008
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:196
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:796

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/3064-192-0x0000000072860000-0x0000000072A7C000-memory.dmp
          Download

          memory/3064-186-0x0000000072BE0000-0x0000000072C62000-memory.dmp
          Download

          memory/3064-191-0x0000000072B00000-0x0000000072B22000-memory.dmp
          Download

          memory/3064-189-0x0000000072BE0000-0x0000000072C62000-memory.dmp
          Download

          memory/3064-193-0x0000000000E40000-0x000000000113E000-memory.dmp
          Download

          memory/3064-187-0x0000000072860000-0x0000000072A7C000-memory.dmp
          Download

          memory/3064-190-0x0000000072B00000-0x0000000072B22000-memory.dmp
          Download

          memory/3064-194-0x0000000000E40000-0x000000000113E000-memory.dmp
          Download

          memory/3064-195-0x0000000072B30000-0x0000000072BB2000-memory.dmp
          Download

          memory/3064-188-0x0000000072B30000-0x0000000072BB2000-memory.dmp
          Download

          memory/3968-144-0x0000000010000000-0x0000000010010000-memory.dmp
          Download