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Analysis

  • max time kernel
    293s
  • max time network
    301s
  • resource
    win7v191014
  • submitted
    03-02-2020 18:35

General

  • Target

    ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

  • Sample

    200203-w9w65p2nnn

  • SHA256

    ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\@Please_Read_Me@.txt

Family

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 "@WanaDecryptor@.exe". 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

  • Suspicious use of SetWindowsHookEx 11 IoCs
  • Adds Run entry to start application 2 TTPs 2 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery

  • Views/modifies file attributes 1 TTPs 1 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery

  • Suspicious use of WriteProcessMemory 41 IoCs
  • Executes dropped EXE 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 32 IoCs
  • Loads dropped DLL 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Drops startup file 6 IoCs
  • Wannacry

    WannaCry is a ransomware cryptoworm.

  • Modifies file permissions 1 TTPs 1 IoCs
  • Modifies service 2 TTPs 4 IoCs
  • Detect's application with GUI, possible interaction needed.
  • Modifies registry key 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
    "C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe"
    1⤵
    • Sets desktop wallpaper using registry
    • Suspicious use of WriteProcessMemory
    • Loads dropped DLL
    • Drops startup file
    PID:1412
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h .
      2⤵
      • Views/modifies file attributes
      PID:1696
    • C:\Windows\SysWOW64\icacls.exe
      icacls . /grant Everyone:F /T /C /Q
      2⤵
      • Modifies file permissions
      PID:1108
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1124
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c 87741580758561.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:384
      • C:\Windows\SysWOW64\cscript.exe
        cscript.exe //nologo m.vbs
        3⤵
        • Loads dropped DLL
        PID:868
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe co
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1116
      • 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:2024
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c start /b @WanaDecryptor@.exe vs
      2⤵
      • Suspicious use of WriteProcessMemory
      • Loads dropped DLL
      PID:1124
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe vs
        3⤵
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        • Executes dropped EXE
        PID:1460
        • 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:1956
          • C:\Windows\SysWOW64\vssadmin.exe
            vssadmin delete shadows /all /quiet
            5⤵
            • Interacts with shadow copies
            PID:1696
          • C:\Windows\SysWOW64\Wbem\WMIC.exe
            wmic shadowcopy delete
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1392
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1360
    • C:\Users\Admin\AppData\Local\Temp\taskse.exe
      taskse.exe C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1460
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Sets desktop wallpaper using registry
      • Executes dropped EXE
      PID:1516
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "ftqqepmlkbmm513" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1476
      • C:\Windows\SysWOW64\reg.exe
        reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "ftqqepmlkbmm513" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
        3⤵
        • Adds Run entry to start application
        • Modifies registry key
        PID:1392
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1072
    • C:\Users\Admin\AppData\Local\Temp\taskse.exe
      taskse.exe C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1388
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Executes dropped EXE
      PID:1968
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1612
    • C:\Users\Admin\AppData\Local\Temp\taskse.exe
      taskse.exe C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:764
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Executes dropped EXE
      PID:1224
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1696
    • C:\Users\Admin\AppData\Local\Temp\taskse.exe
      taskse.exe C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1064
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Executes dropped EXE
      PID:1948
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1720
    • C:\Users\Admin\AppData\Local\Temp\taskse.exe
      taskse.exe C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:764
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Executes dropped EXE
      PID:1428
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1824
    • C:\Users\Admin\AppData\Local\Temp\taskse.exe
      taskse.exe C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:840
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Executes dropped EXE
      PID:2036
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1920
    • C:\Users\Admin\AppData\Local\Temp\taskse.exe
      taskse.exe C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1608
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Executes dropped EXE
      PID:1072
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:864
    • C:\Users\Admin\AppData\Local\Temp\taskse.exe
      taskse.exe C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:764
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Executes dropped EXE
      PID:1564
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:424
    • C:\Users\Admin\AppData\Local\Temp\taskse.exe
      taskse.exe C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2020
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Executes dropped EXE
      PID:584
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Modifies service
    PID:884

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Hidden Files and Directories

1
T1158

Modify Existing Service

1
T1031

Defense Evasion

Modify Registry

4
T1112

File Deletion

2
T1107

Hidden Files and Directories

1
T1158

File Permissions Modification

1
T1222

Impact

Defacement

1
T1491

Inhibit System Recovery

2
T1490

Replay Monitor

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Downloads