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

210315-v77jkyypdj 10

12-03-2021 14:39

210312-v91t4rfeva 10

09-03-2021 16:31

210309-jarv33yz26 10

08-03-2021 18:16

210308-nb95m4v9c6 10

04-03-2021 16:33

210304-wah1ytdaa6 10

04-03-2021 15:26

210304-v2jw3mqwkj 10

03-03-2021 02:26

210303-eg4g1z4wd2 10

Analysis

  • max time kernel
    152s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7v200217
  • submitted
    07-04-2020 15:21

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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

  • Loads dropped DLL 35 IoCs
  • Executes dropped EXE 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 49 IoCs
  • Modifies service 2 TTPs 4 IoCs
    persistence
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of WriteProcessMemory 96 IoCs
  • Detects application with GUI, possible interaction required
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Wannacry

    WannaCry is a ransomware cryptoworm.

    ransomwarewormwannacry
  • Adds Run entry to start application 2 TTPs 2 IoCs
    persistence
  • Drops startup file 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies file permissions 1 TTPs 1 IoCs
    discovery
  • Views/modifies file attributes 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
    "C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe"
    1⤵
    • Loads dropped DLL
    • Sets desktop wallpaper using registry
    • Suspicious use of WriteProcessMemory
    • Drops startup file
    PID:1852
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h .
      2⤵
      • Views/modifies file attributes
      PID:1860
    • C:\Windows\SysWOW64\icacls.exe
      icacls . /grant Everyone:F /T /C /Q
      2⤵
      • Modifies file permissions
      PID:1884
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1248
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c 29351586280163.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1364
      • C:\Windows\SysWOW64\cscript.exe
        cscript.exe //nologo m.vbs
        3⤵
        • Loads dropped DLL
        PID:1488
    • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
      taskdl.exe
      2⤵
      • Executes dropped EXE
      PID:1600
    • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
      @WanaDecryptor@.exe co
      2⤵
      • Loads dropped DLL
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      • Suspicious use of SetWindowsHookEx
      PID:1452
      • 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:1808
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c start /b @WanaDecryptor@.exe vs
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1448
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe vs
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetWindowsHookEx
        PID:1840
        • 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⤵
            PID:1248
            • C:\Windows\SysWOW64\vssadmin.exe
              vssadmin delete shadows /all /quiet
              5⤵
              • Interacts with shadow copies
              PID:788
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic shadowcopy delete
              5⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1504
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:1948
      • 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:1872
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe
        2⤵
        • Executes dropped EXE
        • Sets desktop wallpaper using registry
        • Suspicious use of SetWindowsHookEx
        PID:2004
      • 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:2032
        • 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:1936
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:1048
      • 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:1500
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1832
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        2⤵
        • Executes dropped EXE
        PID:2024
      • 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:2020
      • C:\Users\Admin\AppData\Local\Temp\@WanaDecryptor@.exe
        @WanaDecryptor@.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1960
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      • Modifies service
      PID:344

    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 Deletion

    2
    T1107

    File Permissions Modification

    1
    T1222

    Hidden Files and Directories

    1
    T1158

    Credential Access

    Discovery

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Defacement

    1
    T1491

    Inhibit System Recovery

    2
    T1490

    Replay Monitor

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    Downloads