Overview

overview

10

Static

static

1831.bin.exe

windows7_x64

10

1831.bin.exe

windows10_x64

10

Analysis

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

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General

  • Target

    1831.bin.exe

  • Size

    3.4MB

  • MD5

    84c82835a5d21bbcf75a61706d8ab549

  • SHA1

    5ff465afaabcbf0150d1a3ab2c2e74f3a4426467

  • SHA256

    ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

  • SHA512

    90723a50c20ba3643d625595fd6be8dcf88d70ff7f4b4719a88f055d5b3149a4231018ea30d375171507a147e59f73478c0c27948590794554d031e7d54b7244

Score
10/10
discoveryransomwarepersistencewormwannacry

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\@[email protected]

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 "@[email protected]". 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
    persistence
  • Modifies service 2 TTPs 4 IoCs
    persistence
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Wannacry

    WannaCry is a ransomware cryptoworm.

    ransomwarewormwannacry
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Modifies file permissions 1 TTPs 1 IoCs
    discovery
  • 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.

    ransomware
  • Modifies registry key 1 TTPs 1 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs
    evasion
  • 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\@[email protected]
        @[email protected] 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 @[email protected] vs
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3340
        • C:\Users\Admin\AppData\Local\Temp\@[email protected]
          @[email protected] 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\@[email protected]
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Executes dropped EXE
        PID:3492
      • C:\Users\Admin\AppData\Local\Temp\@[email protected]
        @[email protected]
        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\@[email protected]
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Executes dropped EXE
        PID:2196
      • 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\@[email protected]
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Executes dropped EXE
        PID:584
      • C:\Users\Admin\AppData\Local\Temp\taskse.exe
        taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Executes dropped EXE
        PID:3904
      • 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 Enterprise v6

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    Downloads