Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v200217
  • submitted
    20-03-2020 09:02

General

  • Target

    1831.bin.exe

  • Size

    3.4MB

  • MD5

    84c82835a5d21bbcf75a61706d8ab549

  • SHA1

    5ff465afaabcbf0150d1a3ab2c2e74f3a4426467

  • SHA256

    ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

  • SHA512

    90723a50c20ba3643d625595fd6be8dcf88d70ff7f4b4719a88f055d5b3149a4231018ea30d375171507a147e59f73478c0c27948590794554d031e7d54b7244

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

  • Adds Run entry to start application 2 TTPs 2 IoCs
  • Modifies service 2 TTPs 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Wannacry

    WannaCry is a ransomware cryptoworm.

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Modifies file permissions 1 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies registry key 1 TTPs 1 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 78 IoCs
  • Executes dropped EXE 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1831.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\1831.bin.exe"
    1⤵
    • Sets desktop wallpaper using registry
    • Drops startup file
    • Suspicious use of WriteProcessMemory
    PID:4052
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h .
      2⤵
      • Views/modifies file attributes
      PID:1404
    • C:\Windows\SysWOW64\icacls.exe
      icacls . /grant Everyone:F /T /C /Q
      2⤵
      • Modifies file permissions
      PID:976
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:3140
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c 283351584698556.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3964
      • C:\Windows\SysWOW64\cscript.exe
        cscript.exe //nologo m.vbs
        3⤵
          PID:3956
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe co
        2⤵
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        • Executes dropped EXE
        PID:3232
        • C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exe
          TaskData\Tor\taskhsvc.exe
          3⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Executes dropped EXE
          PID:3716
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c start /b @WanaDecryptor@.exe vs
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3340
        • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
          @WanaDecryptor@.exe vs
          3⤵
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          • Executes dropped EXE
          PID:2412
          • 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:3928
            • C:\Windows\SysWOW64\vssadmin.exe
              vssadmin delete shadows /all /quiet
              5⤵
              • Interacts with shadow copies
              PID:2940
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic shadowcopy delete
              5⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:716
      • C:\Users\Admin\AppData\Local\Temp\taskse.exe
        taskse.exe C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Executes dropped EXE
        PID:3492
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe
        2⤵
        • Sets desktop wallpaper using registry
        • Suspicious use of SetWindowsHookEx
        • Executes dropped EXE
        PID:3712
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "dzwzaxzeqy020" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3704
        • C:\Windows\SysWOW64\reg.exe
          reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "dzwzaxzeqy020" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
          3⤵
          • Adds Run entry to start application
          • Modifies registry key
          PID:412
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:420
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:2248
      • C:\Users\Admin\AppData\Local\Temp\taskse.exe
        taskse.exe C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Executes dropped EXE
        PID:2196
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe
        2⤵
        • Suspicious use of SetWindowsHookEx
        • Executes dropped EXE
        PID:2200
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:636
      • C:\Users\Admin\AppData\Local\Temp\taskse.exe
        taskse.exe C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Executes dropped EXE
        PID:584
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe
        2⤵
        • Suspicious use of SetWindowsHookEx
        • Executes dropped EXE
        PID:1708
      • C:\Users\Admin\AppData\Local\Temp\taskse.exe
        taskse.exe C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Executes dropped EXE
        PID:3904
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe
        2⤵
        • Suspicious use of SetWindowsHookEx
        • Executes dropped EXE
        PID:2476
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:3084
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Modifies service
      • Suspicious use of AdjustPrivilegeToken
      PID:4080

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Modify Existing Service

    1
    T1031

    Hidden Files and Directories

    1
    T1158

    Defense Evasion

    Modify Registry

    4
    T1112

    File Deletion

    2
    T1107

    File Permissions Modification

    1
    T1222

    Hidden Files and Directories

    1
    T1158

    Impact

    Defacement

    1
    T1491

    Inhibit System Recovery

    2
    T1490

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\0.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\00000000.res
    • C:\Users\Admin\AppData\Local\Temp\1.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\10.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\11.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\12.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\13.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\14.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\15.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\16.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\17.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\18.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\19.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\2.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\20.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\21.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\22.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\23.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\24.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\25.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\26.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\27.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\28.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\283351584698556.bat
    • C:\Users\Admin\AppData\Local\Temp\3.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\4.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\5.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\6.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\7.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\8.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\9.WNCRYT
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe.lnk
    • C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\LIBEAY32.dll
    • C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\SSLEAY32.dll
    • C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\libevent-2-0-5.dll
    • C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\libgcc_s_sjlj-1.dll
    • C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\libssp-0.dll
    • C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exe
    • C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exe
    • C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\zlib1.dll
    • C:\Users\Admin\AppData\Local\Temp\b.wnry
    • C:\Users\Admin\AppData\Local\Temp\c.wnry
    • C:\Users\Admin\AppData\Local\Temp\c.wnry
    • C:\Users\Admin\AppData\Local\Temp\m.vbs
    • C:\Users\Admin\AppData\Local\Temp\msg\m_bulgarian.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_chinese (simplified).wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_chinese (traditional).wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_croatian.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_czech.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_danish.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_dutch.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_english.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_filipino.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_finnish.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_french.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_german.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_greek.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_indonesian.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_italian.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_japanese.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_korean.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_latvian.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_norwegian.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_polish.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_portuguese.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_romanian.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_russian.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_slovak.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_spanish.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_swedish.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_turkish.wnry
    • C:\Users\Admin\AppData\Local\Temp\msg\m_vietnamese.wnry
    • C:\Users\Admin\AppData\Local\Temp\r.wnry
    • C:\Users\Admin\AppData\Local\Temp\s.wnry
    • C:\Users\Admin\AppData\Local\Temp\t.wnry
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
    • C:\Users\Admin\AppData\Local\Temp\taskse.exe
    • C:\Users\Admin\AppData\Local\Temp\taskse.exe
    • C:\Users\Admin\AppData\Local\Temp\taskse.exe
    • C:\Users\Admin\AppData\Local\Temp\taskse.exe
    • C:\Users\Admin\AppData\Local\Temp\taskse.exe
    • C:\Users\Admin\AppData\Local\Temp\u.wnry
    • C:\Users\Admin\Desktop\@WanaDecryptor@.bmp
    • \Users\Admin\AppData\Local\Temp\TaskData\Tor\libeay32.dll
    • \Users\Admin\AppData\Local\Temp\TaskData\Tor\libeay32.dll
    • \Users\Admin\AppData\Local\Temp\TaskData\Tor\libevent-2-0-5.dll
    • \Users\Admin\AppData\Local\Temp\TaskData\Tor\libgcc_s_sjlj-1.dll
    • \Users\Admin\AppData\Local\Temp\TaskData\Tor\libssp-0.dll
    • \Users\Admin\AppData\Local\Temp\TaskData\Tor\ssleay32.dll
    • \Users\Admin\AppData\Local\Temp\TaskData\Tor\zlib1.dll
    • memory/3716-138-0x0000000002F00000-0x0000000002F01000-memory.dmp
      Filesize

      4KB

    • memory/3716-229-0x0000000002F00000-0x0000000002F01000-memory.dmp
      Filesize

      4KB

    • memory/3716-66-0x0000000003700000-0x0000000003701000-memory.dmp
      Filesize

      4KB

    • memory/3716-67-0x0000000002F00000-0x0000000002F01000-memory.dmp
      Filesize

      4KB

    • memory/3716-71-0x0000000002F00000-0x0000000002F01000-memory.dmp
      Filesize

      4KB

    • memory/3716-118-0x0000000002F00000-0x0000000002F01000-memory.dmp
      Filesize

      4KB

    • memory/3716-398-0x00000000034E0000-0x00000000034E1000-memory.dmp
      Filesize

      4KB

    • memory/3716-205-0x0000000002F00000-0x0000000002F01000-memory.dmp
      Filesize

      4KB

    • memory/3716-65-0x0000000002F00000-0x0000000002F01000-memory.dmp
      Filesize

      4KB

    • memory/3716-230-0x0000000003700000-0x0000000003701000-memory.dmp
      Filesize

      4KB

    • memory/3716-231-0x0000000002F00000-0x0000000002F01000-memory.dmp
      Filesize

      4KB

    • memory/3716-300-0x0000000002F00000-0x0000000002F01000-memory.dmp
      Filesize

      4KB

    • memory/3716-395-0x00000000034E0000-0x00000000034E1000-memory.dmp
      Filesize

      4KB

    • memory/3716-396-0x0000000003CE0000-0x0000000003CE1000-memory.dmp
      Filesize

      4KB

    • memory/4052-36-0x0000000010000000-0x0000000010010000-memory.dmp
      Filesize

      64KB