Overview

overview

10

Static

static

ed01ebfbc9...aa.exe

windows7_x64

10

ed01ebfbc9...aa.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    108s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    29-05-2020 11:18

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General

  • Target

    ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

  • Size

    3.4MB

  • MD5

    84c82835a5d21bbcf75a61706d8ab549

  • SHA1

    5ff465afaabcbf0150d1a3ab2c2e74f3a4426467

  • SHA256

    ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

  • SHA512

    90723a50c20ba3643d625595fd6be8dcf88d70ff7f4b4719a88f055d5b3149a4231018ea30d375171507a147e59f73478c0c27948590794554d031e7d54b7244

Score
10/10
ransomwarewormwannacryspywarepersistencediscovery

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

  • Modifies file permissions 1 TTPs 1 IoCs
    discovery
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Wannacry

    WannaCry is a ransomware cryptoworm.

    ransomwarewormwannacry
  • Adds Run entry to start application 2 TTPs 2 IoCs
    persistence
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spyware
  • Modifies service 2 TTPs 4 IoCs
    persistence
  • Suspicious use of WriteProcessMemory 104 IoCs
  • Executes dropped EXE 16 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs
    evasion
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Loads dropped DLL 39 IoCs
  • Suspicious use of AdjustPrivilegeToken 51 IoCs
  • Drops startup file 2 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 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:1068
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h .
      2⤵
      • Views/modifies file attributes
      PID:608
    • C:\Windows\SysWOW64\icacls.exe
      icacls . /grant Everyone:F /T /C /Q
      2⤵
      • Modifies file permissions
      PID:1432
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1236
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c 12591590758353.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1848
      • C:\Windows\SysWOW64\cscript.exe
        cscript.exe //nologo m.vbs
        3⤵
        • Loads dropped DLL
        PID:1752
    • 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:1936
      • 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:724
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c start /b @WanaDecryptor@.exe vs
      2⤵
      • Suspicious use of WriteProcessMemory
      • Loads dropped DLL
      PID:1892
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe vs
        3⤵
        • Suspicious use of WriteProcessMemory
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1996
        • 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:764
          • C:\Windows\SysWOW64\vssadmin.exe
            vssadmin delete shadows /all /quiet
            5⤵
            • Interacts with shadow copies
            PID:1960
          • C:\Windows\SysWOW64\Wbem\WMIC.exe
            wmic shadowcopy delete
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1056
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1788
    • 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:1844
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe
      2⤵
      • Sets desktop wallpaper using registry
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      • Suspicious behavior: GetForegroundWindowSpam
      PID:1948
    • 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:1884
        • 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:1908
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:2036
      • 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:1496
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1428
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:272
      • 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:1636
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1944
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:1844
      • 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:1900
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1596
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Modifies service
      • Suspicious use of AdjustPrivilegeToken
      PID:1972

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Modify Existing Service

    1
    T1031

    Hidden Files and Directories

    1
    T1158

    Privilege Escalation

    Defense Evasion

    File Permissions Modification

    1
    T1222

    Modify Registry

    4
    T1112

    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

    Defacement

    1
    T1491

    Inhibit System Recovery

    2
    T1490

    Replay Monitor

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    Downloads