Overview

overview

10

task1

 

10

task2

 

10

Resubmissions

30-10-2019 18:36

191030-35tdg7dqen 0

29-10-2019 13:22

191029-vhssnz4w3x 0

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • resource
    win7v191014

Sharing

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General

  • Target

    wannacry.exe

  • Sample

    191030-35tdg7dqen

  • SHA256

    ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Score
N/A

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

  • Drops startup file 6 IoCs
  • Deletes shadow copies 2 TTPs 2 IoCs
    ransomware
  • Views/modifies file attributes 1 TTPs 1 IoCs
    evasion
  • Modifies file permissions 1 TTPs 1 IoCs
  • Executes dropped EXE 16 IoCs
  • Drops Office document 26 IoCs
    dropperexploitermaldoc
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Uses Volume Shadow Copy Service COM API 18 IoCs
    ransomware
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • wannacry family
    familywannacry
  • Adds Run entry to start application 2 TTPs 1 IoCs
    persistence
  • Suspicious use of WriteProcessMemory 26 IoCs
  • Loads dropped DLL 5 IoCs
  • Wannacry file encrypt 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\wannacry.exe"
    1⤵
    • Drops startup file
    • Drops Office document
    • Sets desktop wallpaper using registry
    • Suspicious use of WriteProcessMemory
    • Loads dropped DLL
    • Wannacry file encrypt
    PID:1068
  • C:\Windows\SysWOW64\attrib.exe
    attrib +h .
    1⤵
    • Views/modifies file attributes
    PID:2008
  • C:\Windows\system32\conhost.exe
    \??\C:\Windows\system32\conhost.exe "-1564977991624155660-1453012193473192921761962069-536643656-106980508-1099575151"
    1⤵
      PID:1076
    • C:\Windows\SysWOW64\icacls.exe
      icacls . /grant Everyone:F /T /C /Q
      1⤵
      • Modifies file permissions
      PID:1912
    • C:\Windows\system32\conhost.exe
      \??\C:\Windows\system32\conhost.exe "-1433758704599912992-2034040389694577296-1233077669-1856256221-1897776215-993944819"
      1⤵
        PID:1420
      • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
        taskdl.exe
        1⤵
        • Executes dropped EXE
        PID:280
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c 107631572464199.bat
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2016
      • C:\Windows\system32\conhost.exe
        \??\C:\Windows\system32\conhost.exe "1710622227-3362430291889639001-17061210402087669707128591655715187907251345139533"
        1⤵
          PID:888
        • C:\Windows\SysWOW64\cscript.exe
          cscript.exe //nologo m.vbs
          1⤵
          • Loads dropped DLL
          PID:1908
        • C:\Users\Admin\AppData\Local\Temp\@[email protected]
          @[email protected] co
          1⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          • Loads dropped DLL
          PID:1100
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c start /b @[email protected] vs
          1⤵
          • Suspicious use of WriteProcessMemory
          • Loads dropped DLL
          PID:1896
        • C:\Windows\system32\conhost.exe
          \??\C:\Windows\system32\conhost.exe "1423921840-1126505904595929214-3591471034605244781290915635-4916285251448272752"
          1⤵
            PID:1812
          • C:\Users\Admin\AppData\Local\Temp\@[email protected]
            @[email protected] vs
            1⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1904
          • C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exe
            TaskData\Tor\taskhsvc.exe
            1⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Loads dropped DLL
            PID:1900
          • C:\Windows\system32\conhost.exe
            \??\C:\Windows\system32\conhost.exe "-1378242333-1722488451-946185468-182908411211145389121848568834-9328756071973113535"
            1⤵
              PID:556
            • C:\Users\Admin\AppData\Local\Temp\taskse.exe
              taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
              1⤵
              • Executes dropped EXE
              • Suspicious use of AdjustPrivilegeToken
              PID:280
            • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
              taskdl.exe
              1⤵
              • Executes dropped EXE
              PID:2036
            • C:\Users\Admin\AppData\Local\Temp\@[email protected]
              @[email protected]
              1⤵
              • Executes dropped EXE
              • Sets desktop wallpaper using registry
              • Suspicious use of SetWindowsHookEx
              • Suspicious behavior: GetForegroundWindowSpam
              PID:1896
            • C:\Windows\SysWOW64\cmd.exe
              cmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "ftqqepmlkbmm513" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
              1⤵
              • Suspicious use of WriteProcessMemory
              PID:788
            • C:\Windows\system32\conhost.exe
              \??\C:\Windows\system32\conhost.exe "56702460518221025781812946076-1143688345-1234713570-607708771-618578172-1958975127"
              1⤵
                PID:1276
              • C:\Windows\SysWOW64\reg.exe
                reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "ftqqepmlkbmm513" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
                1⤵
                • Modifies registry key
                • Adds Run entry to start application
                PID:1356
              • 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
                1⤵
                • Suspicious use of WriteProcessMemory
                PID:1996
              • C:\Windows\system32\conhost.exe
                \??\C:\Windows\system32\conhost.exe "461024873346283574574371381-386137736356021131568039406-2025267289-1375259330"
                1⤵
                  PID:1972
                • C:\Windows\SysWOW64\vssadmin.exe
                  vssadmin delete shadows /all /quiet
                  1⤵
                  • Deletes shadow copies
                  • Uses Volume Shadow Copy Service COM API
                  PID:1076
                • C:\Windows\system32\vssvc.exe
                  C:\Windows\system32\vssvc.exe
                  1⤵
                  • Uses Volume Shadow Copy Service COM API
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1356
                • C:\Windows\SysWOW64\Wbem\WMIC.exe
                  wmic shadowcopy delete
                  1⤵
                  • Deletes shadow copies
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1940
                • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
                  taskdl.exe
                  1⤵
                  • Executes dropped EXE
                  PID:888
                • C:\Users\Admin\AppData\Local\Temp\taskse.exe
                  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1884
                • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
                  taskdl.exe
                  1⤵
                  • Executes dropped EXE
                  PID:1832
                • C:\Users\Admin\AppData\Local\Temp\taskse.exe
                  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:772
                • C:\Users\Admin\AppData\Local\Temp\taskdl.exe
                  taskdl.exe
                  1⤵
                  • Executes dropped EXE
                  PID:1980
                • C:\Users\Admin\AppData\Local\Temp\taskse.exe
                  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1888

                Network

                MITRE ATT&CK Enterprise v15

                MITRE ATT&CK Additional techniques

                • T1107
                • T1158
                • T1060

                Replay Monitor

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                Downloads

                • memory/1068-2-0x0000000010000000-0x0000000010010000-memory.dmp

                  Filesize

                  64KB

                  Download

                • memory/1900-69-0x0000000002FF0000-0x0000000003001000-memory.dmp

                  Filesize

                  68KB

                  Download

                • memory/1900-237-0x0000000002BE0000-0x0000000002BF1000-memory.dmp

                  Filesize

                  68KB

                  Download

                • memory/1900-236-0x0000000002FF0000-0x0000000003001000-memory.dmp

                  Filesize

                  68KB

                  Download

                • memory/1900-235-0x0000000002BE0000-0x0000000002BF1000-memory.dmp

                  Filesize

                  68KB

                  Download

                • memory/1900-70-0x0000000002BE0000-0x0000000002BF1000-memory.dmp

                  Filesize

                  68KB

                  Download

                • memory/1900-410-0x0000000003410000-0x0000000003421000-memory.dmp

                  Filesize

                  68KB

                  Download

                • memory/1900-413-0x0000000003410000-0x0000000003421000-memory.dmp

                  Filesize

                  68KB

                  Download

                • memory/1900-68-0x0000000002BE0000-0x0000000002BF1000-memory.dmp

                  Filesize

                  68KB

                  Download

                • memory/1900-412-0x0000000003820000-0x0000000003831000-memory.dmp

                  Filesize

                  68KB

                  Download

                • memory/1908-44-0x0000000002820000-0x0000000002824000-memory.dmp

                  Filesize

                  16KB

                  Download