Overview

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10

task1

 

10

task2

 

10

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Analysis

  • max time kernel
    143s
  • resource
    win7v191014
  • submitted
    09-01-2020 12:33

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General

  • Target

    ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

  • Sample

    200109-ta3m1dkh6n

  • SHA256

    ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Score
10/10
ransomwarepersistencewormwannacry

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\@[email protected]

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 "@[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

  • Deletes shadow copies 2 TTPs 2 IoCs
    ransomware
  • Modifies file permissions 1 TTPs 1 IoCs
  • Executes dropped EXE 16 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Wannacry

    WannaCry is a ransomware cryptoworm.

    ransomwarewormwannacry
  • Suspicious use of WriteProcessMemory 26 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Drops startup file 6 IoCs
  • Adds Run entry to start application 2 TTPs 1 IoCs
    persistence
  • Views/modifies file attributes 1 TTPs 1 IoCs
    evasion
  • Loads dropped DLL 5 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
    "C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Drops startup file
    • Loads dropped DLL
    • Sets desktop wallpaper using registry
    PID:1412
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h .
      2⤵
      • Views/modifies file attributes
      PID:1124
    • 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:1972
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c 185061578576852.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1180
      • C:\Windows\SysWOW64\cscript.exe
        cscript.exe //nologo m.vbs
        3⤵
        • Loads dropped DLL
        PID:1124
    • C:\Users\Admin\AppData\Local\Temp\@[email protected]
      @[email protected] co
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      • Suspicious use of SetWindowsHookEx
      • Loads dropped DLL
      PID:1924
      • C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exe
        TaskData\Tor\taskhsvc.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Loads dropped DLL
        PID:2020
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c start /b @[email protected] vs
      2⤵
      • Suspicious use of WriteProcessMemory
      • Loads dropped DLL
      PID:2024
      • C:\Users\Admin\AppData\Local\Temp\@[email protected]
        @[email protected] vs
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetWindowsHookEx
        PID:240
        • 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:884
          • C:\Windows\SysWOW64\vssadmin.exe
            vssadmin delete shadows /all /quiet
            5⤵
            • Deletes shadow copies
            PID:1368
          • C:\Windows\SysWOW64\Wbem\WMIC.exe
            wmic shadowcopy delete
            5⤵
            • Deletes shadow copies
            • Suspicious use of AdjustPrivilegeToken
            PID:1180
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1116
    • 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:1912
    • C:\Users\Admin\AppData\Local\Temp\@[email protected]
      @[email protected]
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Sets desktop wallpaper using registry
      PID:1108
    • 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:1208
      • 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:1536
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1340
    • 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:1252
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1608
    • 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:1616
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:2012
    • 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:1840
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1996

Network

MITRE ATT&CK Enterprise v6

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