Analysis

  • max time kernel
    142s
  • max time network
    143s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    29-05-2020 11:18

General

  • Target

    ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

  • Size

    3.4MB

  • MD5

    84c82835a5d21bbcf75a61706d8ab549

  • SHA1

    5ff465afaabcbf0150d1a3ab2c2e74f3a4426467

  • SHA256

    ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

  • SHA512

    90723a50c20ba3643d625595fd6be8dcf88d70ff7f4b4719a88f055d5b3149a4231018ea30d375171507a147e59f73478c0c27948590794554d031e7d54b7244

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: 13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94 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

13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94

Signatures

  • Executes dropped EXE 14 IoCs
  • Loads dropped DLL 10 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Modifies service 2 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 51 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 72 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run entry to start application 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Wannacry

    WannaCry is a ransomware cryptoworm.

  • Views/modifies file attributes 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
    • Drops startup file
    PID:2016
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h .
      2⤵
      • Views/modifies file attributes
      PID:2056
    • C:\Windows\SysWOW64\icacls.exe
      icacls . /grant Everyone:F /T /C /Q
      2⤵
      • Modifies file permissions
      PID:2152
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:3032
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c 323551590758345.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3880
      • C:\Windows\SysWOW64\cscript.exe
        cscript.exe //nologo m.vbs
        3⤵
          PID:3944
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:1072
      • C:\Users\Admin\AppData\Local\Temp\@[email protected]
        2⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetWindowsHookEx
        PID:1112
        • 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:2556
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c start /b @[email protected] vs
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1640
        • C:\Users\Admin\AppData\Local\Temp\@[email protected]
          3⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          • Suspicious use of SetWindowsHookEx
          PID:3788
          • 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:2340
            • C:\Windows\SysWOW64\vssadmin.exe
              vssadmin delete shadows /all /quiet
              5⤵
              • Interacts with shadow copies
              PID:3792
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic shadowcopy delete
              5⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:4048
      • 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:3904
      • C:\Users\Admin\AppData\Local\Temp\@[email protected]
        2⤵
        • Executes dropped EXE
        • Sets desktop wallpaper using registry
        • Suspicious use of SetWindowsHookEx
        PID:416
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "biiywaghgcpcp303" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3216
        • C:\Windows\SysWOW64\reg.exe
          reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "biiywaghgcpcp303" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
          3⤵
          • Modifies registry key
          • Adds Run entry to start application
          PID:1840
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:724
      • 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:704
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:3700
      • 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:2368
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:3024
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Modifies service
      • Suspicious use of AdjustPrivilegeToken
      PID:3680

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/2016-36-0x0000000010000000-0x0000000010010000-memory.dmp

      Filesize

      64KB

    • memory/2556-381-0x0000000003D70000-0x0000000003D71000-memory.dmp

      Filesize

      4KB

    • memory/2556-382-0x0000000003D70000-0x0000000003D71000-memory.dmp

      Filesize

      4KB

    • memory/2556-331-0x0000000003D70000-0x0000000003D71000-memory.dmp

      Filesize

      4KB

    • memory/2556-66-0x00000000037B0000-0x00000000037B1000-memory.dmp

      Filesize

      4KB

    • memory/2556-65-0x0000000003FB0000-0x0000000003FB1000-memory.dmp

      Filesize

      4KB

    • memory/2556-64-0x00000000037B0000-0x00000000037B1000-memory.dmp

      Filesize

      4KB

    • memory/2556-311-0x0000000003D70000-0x0000000003D71000-memory.dmp

      Filesize

      4KB

    • memory/2556-312-0x0000000004570000-0x0000000004571000-memory.dmp

      Filesize

      4KB

    • memory/2556-313-0x0000000003D70000-0x0000000003D71000-memory.dmp

      Filesize

      4KB

    • memory/2556-332-0x0000000003D70000-0x0000000003D71000-memory.dmp

      Filesize

      4KB

    • memory/2556-116-0x00000000037B0000-0x00000000037B1000-memory.dmp

      Filesize

      4KB

    • memory/2556-147-0x00000000037B0000-0x00000000037B1000-memory.dmp

      Filesize

      4KB

    • memory/2556-314-0x0000000003D70000-0x0000000003D71000-memory.dmp

      Filesize

      4KB

    • memory/2556-348-0x0000000003D70000-0x0000000003D71000-memory.dmp

      Filesize

      4KB

    • memory/2556-360-0x0000000003D70000-0x0000000003D71000-memory.dmp

      Filesize

      4KB

    • memory/2556-364-0x0000000003D70000-0x0000000003D71000-memory.dmp

      Filesize

      4KB

    • memory/2556-365-0x0000000003D70000-0x0000000003D71000-memory.dmp

      Filesize

      4KB

    • memory/2556-368-0x0000000003D70000-0x0000000003D71000-memory.dmp

      Filesize

      4KB

    • memory/2556-148-0x0000000003FB0000-0x0000000003FB1000-memory.dmp

      Filesize

      4KB

    • memory/2556-373-0x0000000003D70000-0x0000000003D71000-memory.dmp

      Filesize

      4KB

    • memory/2556-388-0x0000000003D70000-0x0000000003D71000-memory.dmp

      Filesize

      4KB

    • memory/2556-385-0x0000000003D70000-0x0000000003D71000-memory.dmp

      Filesize

      4KB

    • memory/2556-149-0x00000000037B0000-0x00000000037B1000-memory.dmp

      Filesize

      4KB