Overview

overview

10

Static

static

ed01ebfbc9...aa.exe

windows7_x64

10

ed01ebfbc9...aa.exe

windows10_x64

10

Resubmissions

13-04-2021 15:20

210413-erpdk5746n 10

07-04-2021 20:23

210407-3w1xnp3sxx 10

30-03-2021 12:44

210330-rxae2gpzkn 10

15-03-2021 03:56

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09-03-2021 16:31

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04-03-2021 15:26

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03-03-2021 02:26

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Analysis

  • max time kernel
    150s
  • max time network
    109s
  • platform
    windows7_x64
  • resource
    win7v200217
  • submitted
    02-04-2020 15:27

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General

  • Target

    ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

  • Size

    3.4MB

  • MD5

    84c82835a5d21bbcf75a61706d8ab549

  • SHA1

    5ff465afaabcbf0150d1a3ab2c2e74f3a4426467

  • SHA256

    ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

  • SHA512

    90723a50c20ba3643d625595fd6be8dcf88d70ff7f4b4719a88f055d5b3149a4231018ea30d375171507a147e59f73478c0c27948590794554d031e7d54b7244

Score
10/10
ransomwarewormwannacrydiscoverypersistence

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

  • Suspicious use of WriteProcessMemory 104 IoCs
  • Loads dropped DLL 39 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Drops startup file 2 IoCs
  • Detects application with GUI, possible interaction required
  • Executes dropped EXE 16 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs
    evasion
  • Modifies registry key 1 TTPs 1 IoCs
  • Modifies service 2 TTPs 4 IoCs
    persistence
  • Suspicious use of AdjustPrivilegeToken 51 IoCs
  • Wannacry

    WannaCry is a ransomware cryptoworm.

    ransomwarewormwannacry
  • Modifies file permissions 1 TTPs 1 IoCs
    discovery
  • Adds Run entry to start application 2 TTPs 2 IoCs
    persistence
  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
    "C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Loads dropped DLL
    • Drops startup file
    • Sets desktop wallpaper using registry
    PID:1864
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h .
      2⤵
      • Views/modifies file attributes
      PID:1872
    • C:\Windows\SysWOW64\icacls.exe
      icacls . /grant Everyone:F /T /C /Q
      2⤵
      • Modifies file permissions
      PID:1892
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:828
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c 219711585848490.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1336
      • C:\Windows\SysWOW64\cscript.exe
        cscript.exe //nologo m.vbs
        3⤵
        • Loads dropped DLL
        PID:1444
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe co
      2⤵
      • Suspicious use of WriteProcessMemory
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Executes dropped EXE
      PID:1632
      • C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exe
        TaskData\Tor\taskhsvc.exe
        3⤵
        • Loads dropped DLL
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:1732
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c start /b @WanaDecryptor@.exe vs
      2⤵
      • Suspicious use of WriteProcessMemory
      • Loads dropped DLL
      PID:1668
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe vs
        3⤵
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetWindowsHookEx
        • Executes dropped EXE
        PID:1652
        • 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:1668
          • C:\Windows\SysWOW64\vssadmin.exe
            vssadmin delete shadows /all /quiet
            5⤵
            • Interacts with shadow copies
            PID:340
          • C:\Windows\SysWOW64\Wbem\WMIC.exe
            wmic shadowcopy delete
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1836
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1504
    • 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:1400
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Executes dropped EXE
      • Sets desktop wallpaper using registry
      PID:1016
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "ixuojaphjjt477" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1292
      • C:\Windows\SysWOW64\reg.exe
        reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "ixuojaphjjt477" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
        3⤵
        • Modifies registry key
        • Adds Run entry to start application
        PID:1392
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1952
    • 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:1940
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Executes dropped EXE
      PID:1948
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:756
    • 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:1572
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Executes dropped EXE
      PID:1156
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:820
    • 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:316
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Executes dropped EXE
      PID:1952
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Modifies service
    • Suspicious use of AdjustPrivilegeToken
    PID:1492
  • C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe"
    1⤵
      PID:1264
    • C:\Windows\system32\notepad.exe
      "C:\Windows\system32\notepad.exe"
      1⤵
        PID:1416

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Initial Access

      Execution

      Persistence

      Hidden Files and Directories

      1
      T1158

      Modify Existing Service

      1
      T1031

      Registry Run Keys / Startup Folder

      1
      T1060

      Privilege Escalation

      Defense Evasion

      File Deletion

      2
      T1107

      Hidden Files and Directories

      1
      T1158

      Modify Registry

      4
      T1112

      File Permissions Modification

      1
      T1222

      Credential Access

      Discovery

      Lateral Movement

      Collection

      Exfiltration

      Command and Control

      Impact

      Inhibit System Recovery

      2
      T1490

      Defacement

      1
      T1491

      Replay Monitor

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      Downloads