Overview

overview

10

Static

static

ed01ebfbc9...aa.exe

windows7_x64

10

ed01ebfbc9...aa.exe

windows10_x64

10

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07-04-2021 20:23

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Analysis

  • max time kernel
    148s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    07-05-2020 09:24

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General

  • Target

    ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

  • Size

    3.4MB

  • MD5

    84c82835a5d21bbcf75a61706d8ab549

  • SHA1

    5ff465afaabcbf0150d1a3ab2c2e74f3a4426467

  • SHA256

    ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

  • SHA512

    90723a50c20ba3643d625595fd6be8dcf88d70ff7f4b4719a88f055d5b3149a4231018ea30d375171507a147e59f73478c0c27948590794554d031e7d54b7244

Score
10/10
ransomwarepersistencewormwannacrydiscoveryspyware

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: 115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn 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

115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn

Signatures

  • Suspicious use of AdjustPrivilegeToken 51 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Drops startup file 2 IoCs
  • Modifies service 2 TTPs 4 IoCs
    persistence
  • Adds Run entry to start application 2 TTPs 2 IoCs
    persistence
  • Wannacry

    WannaCry is a ransomware cryptoworm.

    ransomwarewormwannacry
  • Modifies file permissions 1 TTPs 1 IoCs
    discovery
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Suspicious use of WriteProcessMemory 104 IoCs
  • Executes dropped EXE 16 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs
    evasion
  • Modifies registry key 1 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spyware
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Loads dropped DLL 39 IoCs
  • Suspicious use of SetWindowsHookEx 9 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⤵
    • Drops startup file
    • Suspicious use of WriteProcessMemory
    • Loads dropped DLL
    • Sets desktop wallpaper using registry
    PID:1432
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h .
      2⤵
      • Views/modifies file attributes
      PID:1452
    • C:\Windows\SysWOW64\icacls.exe
      icacls . /grant Everyone:F /T /C /Q
      2⤵
      • Modifies file permissions
      PID:1020
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1840
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c 44331588850673.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1744
      • C:\Windows\SysWOW64\cscript.exe
        cscript.exe //nologo m.vbs
        3⤵
        • Loads dropped DLL
        PID:656
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe co
      2⤵
      • Suspicious use of WriteProcessMemory
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      PID:1968
      • C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exe
        TaskData\Tor\taskhsvc.exe
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1516
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c start /b @WanaDecryptor@.exe vs
      2⤵
      • Suspicious use of WriteProcessMemory
      • Loads dropped DLL
      PID:1056
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe vs
        3⤵
        • Suspicious use of WriteProcessMemory
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1304
        • 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:608
          • C:\Windows\SysWOW64\vssadmin.exe
            vssadmin delete shadows /all /quiet
            5⤵
            • Interacts with shadow copies
            PID:1008
          • C:\Windows\SysWOW64\Wbem\WMIC.exe
            wmic shadowcopy delete
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1984
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:848
    • 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:840
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe
      2⤵
      • Suspicious use of FindShellTrayWindow
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      • Sets desktop wallpaper using registry
      PID:1852
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "coyaaqitjeid629" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
      2⤵
        PID:1220
        • C:\Windows\SysWOW64\reg.exe
          reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "coyaaqitjeid629" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
          3⤵
          • Adds Run entry to start application
          • Modifies registry key
          PID:468
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:1756
      • 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:1580
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1584
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:1956
      • 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:1984
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1308
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:520
      • 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:880
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:796
    • C:\Windows\system32\notepad.exe
      "C:\Windows\system32\notepad.exe"
      1⤵
        PID:1984
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        • Modifies service
        PID:1532

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Initial Access

      Execution

      Persistence

      Modify Existing Service

      1
      T1031

      Registry Run Keys / Startup Folder

      1
      T1060

      Hidden Files and Directories

      1
      T1158

      Privilege Escalation

      Defense Evasion

      Modify Registry

      4
      T1112

      File Permissions Modification

      1
      T1222

      File Deletion

      2
      T1107

      Hidden Files and Directories

      1
      T1158

      Credential Access

      Credentials in Files

      1
      T1081

      Discovery

      Lateral Movement

      Collection

      Data from Local System

      1
      T1005

      Exfiltration

      Command and Control

      Impact

      Inhibit System Recovery

      2
      T1490

      Defacement

      1
      T1491

      Replay Monitor

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      Downloads