Analysis

  • max time kernel
    141s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 18:46

General

  • Target

    1249492f05963be3787018636c3421c774d44ce3160bef873522598144fe250f.exe

  • Size

    363KB

  • MD5

    0827f613080113b00f9323284f52bd4a

  • SHA1

    036d0241b262d905b4b74036c497178bccecaf3e

  • SHA256

    1249492f05963be3787018636c3421c774d44ce3160bef873522598144fe250f

  • SHA512

    97fa4b74a8cf9fb0cad18acd4c9ee09109ca70e2e365c114fceb06f3ad40364f24950fcb4a389a66d669255b0cf6be49f4ccbd0ab787d0490d68fd296ec18748

  • SSDEEP

    6144:gDCwfG1bnxLERR9saoDCwfG1bnxLERR9saaH:g72bntEL9/o72bntEL9/w

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 3 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 3 IoCs
  • Adds policy Run key to start application 2 TTPs 6 IoCs
  • Executes dropped EXE 6 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 6 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 4 IoCs
  • Modifies registry key 1 TTPs 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1249492f05963be3787018636c3421c774d44ce3160bef873522598144fe250f.exe
    "C:\Users\Admin\AppData\Local\Temp\1249492f05963be3787018636c3421c774d44ce3160bef873522598144fe250f.exe"
    1⤵
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Adds Run key to start application
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3448
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:620
    • C:\Users\Admin\AppData\Local\Temp\avscan.exe
      C:\Users\Admin\AppData\Local\Temp\avscan.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4688
      • C:\Users\Admin\AppData\Local\Temp\avscan.exe
        C:\Users\Admin\AppData\Local\Temp\avscan.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:4440
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
        3⤵
        • Checks computer location settings
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:1932
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Modifies visibility of file extensions in Explorer
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Windows directory
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3732
          • C:\Users\Admin\AppData\Local\Temp\avscan.exe
            C:\Users\Admin\AppData\Local\Temp\avscan.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:832
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
            5⤵
            • Checks computer location settings
            • Modifies registry class
            • Suspicious use of WriteProcessMemory
            PID:3296
            • C:\windows\hosts.exe
              C:\windows\hosts.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:3464
            • C:\Windows\SysWOW64\WScript.exe
              "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
              6⤵
              • Adds policy Run key to start application
              PID:3928
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:3636
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:2604
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:3644
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:640
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
          4⤵
          • Adds policy Run key to start application
          PID:4680
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3580
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2428
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4248
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:848
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4744
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1392
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
        3⤵
        • Adds policy Run key to start application
        PID:4416
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:228

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Hidden Files and Directories

    2
    T1158

    Registry Run Keys / Startup Folder

    2
    T1060

    Defense Evasion

    Hidden Files and Directories

    2
    T1158

    Modify Registry

    5
    T1112

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe
      Filesize

      363KB

      MD5

      3ef4091d0ea3da73acc2b867882453a7

      SHA1

      17d3ba5e7ef01e2d25a3d6498d2bb5a62054cbb3

      SHA256

      29a0db455e38c716694595a2c1c83bf83ed8e1689148be63feb638764f6edfa1

      SHA512

      08d1cf1962f3982dbb2dd92f613cf1bd9fec28026cea6e0c331214a55a3f98fc11219f214c2cc2746164020426cf8f7075759a9d839976589effd2a4ea501f40

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe
      Filesize

      363KB

      MD5

      3ef4091d0ea3da73acc2b867882453a7

      SHA1

      17d3ba5e7ef01e2d25a3d6498d2bb5a62054cbb3

      SHA256

      29a0db455e38c716694595a2c1c83bf83ed8e1689148be63feb638764f6edfa1

      SHA512

      08d1cf1962f3982dbb2dd92f613cf1bd9fec28026cea6e0c331214a55a3f98fc11219f214c2cc2746164020426cf8f7075759a9d839976589effd2a4ea501f40

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe
      Filesize

      363KB

      MD5

      3ef4091d0ea3da73acc2b867882453a7

      SHA1

      17d3ba5e7ef01e2d25a3d6498d2bb5a62054cbb3

      SHA256

      29a0db455e38c716694595a2c1c83bf83ed8e1689148be63feb638764f6edfa1

      SHA512

      08d1cf1962f3982dbb2dd92f613cf1bd9fec28026cea6e0c331214a55a3f98fc11219f214c2cc2746164020426cf8f7075759a9d839976589effd2a4ea501f40

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe
      Filesize

      363KB

      MD5

      3ef4091d0ea3da73acc2b867882453a7

      SHA1

      17d3ba5e7ef01e2d25a3d6498d2bb5a62054cbb3

      SHA256

      29a0db455e38c716694595a2c1c83bf83ed8e1689148be63feb638764f6edfa1

      SHA512

      08d1cf1962f3982dbb2dd92f613cf1bd9fec28026cea6e0c331214a55a3f98fc11219f214c2cc2746164020426cf8f7075759a9d839976589effd2a4ea501f40

    • C:\Windows\W_X_C.vbs
      Filesize

      195B

      MD5

      5b87381bf407d7c6018a8b11c3e20f92

      SHA1

      bb61b28d9c8fd7dfeb13a397c49a1be3abc06ca2

      SHA256

      4785d6a229d0872fe90c75ab620de9a680d7f07ccd27a134da2afc4ee88f34f3

      SHA512

      05db1178f671e9d6c3a1c601349093447b04ebddcd071a06f7cc92cbaf7efb53027bc92523a19372a08ca5af715cc9955649255f8be1909b5e594385b3dcbe3d

    • C:\Windows\hosts.exe
      Filesize

      363KB

      MD5

      16d223b742376ffb96b4ba15b1ed139f

      SHA1

      507e3c60cb0eb31ebd8ee3797942e098c524247f

      SHA256

      67620c72a3e928868ba00f6c141d64a9c90bba2fde3f61c4ea65cc64ffb348ba

      SHA512

      f85521927d60444630ebef33a3cb539bda8a60729e535233260cd5b4d2a1e3daab7fe173836f2756e110f4019f2ea0c46684b17a9527bb6486d7a6d2de105ff6

    • C:\Windows\hosts.exe
      Filesize

      363KB

      MD5

      16d223b742376ffb96b4ba15b1ed139f

      SHA1

      507e3c60cb0eb31ebd8ee3797942e098c524247f

      SHA256

      67620c72a3e928868ba00f6c141d64a9c90bba2fde3f61c4ea65cc64ffb348ba

      SHA512

      f85521927d60444630ebef33a3cb539bda8a60729e535233260cd5b4d2a1e3daab7fe173836f2756e110f4019f2ea0c46684b17a9527bb6486d7a6d2de105ff6

    • C:\Windows\hosts.exe
      Filesize

      363KB

      MD5

      16d223b742376ffb96b4ba15b1ed139f

      SHA1

      507e3c60cb0eb31ebd8ee3797942e098c524247f

      SHA256

      67620c72a3e928868ba00f6c141d64a9c90bba2fde3f61c4ea65cc64ffb348ba

      SHA512

      f85521927d60444630ebef33a3cb539bda8a60729e535233260cd5b4d2a1e3daab7fe173836f2756e110f4019f2ea0c46684b17a9527bb6486d7a6d2de105ff6

    • C:\Windows\hosts.exe
      Filesize

      363KB

      MD5

      16d223b742376ffb96b4ba15b1ed139f

      SHA1

      507e3c60cb0eb31ebd8ee3797942e098c524247f

      SHA256

      67620c72a3e928868ba00f6c141d64a9c90bba2fde3f61c4ea65cc64ffb348ba

      SHA512

      f85521927d60444630ebef33a3cb539bda8a60729e535233260cd5b4d2a1e3daab7fe173836f2756e110f4019f2ea0c46684b17a9527bb6486d7a6d2de105ff6

    • C:\windows\hosts.exe
      Filesize

      363KB

      MD5

      16d223b742376ffb96b4ba15b1ed139f

      SHA1

      507e3c60cb0eb31ebd8ee3797942e098c524247f

      SHA256

      67620c72a3e928868ba00f6c141d64a9c90bba2fde3f61c4ea65cc64ffb348ba

      SHA512

      f85521927d60444630ebef33a3cb539bda8a60729e535233260cd5b4d2a1e3daab7fe173836f2756e110f4019f2ea0c46684b17a9527bb6486d7a6d2de105ff6

    • \??\c:\windows\W_X_C.bat
      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b

    • memory/620-134-0x0000000000000000-mapping.dmp
    • memory/640-177-0x0000000000000000-mapping.dmp
    • memory/832-157-0x0000000000000000-mapping.dmp
    • memory/848-176-0x0000000000000000-mapping.dmp
    • memory/1392-149-0x0000000000000000-mapping.dmp
    • memory/1932-145-0x0000000000000000-mapping.dmp
    • memory/2428-172-0x0000000000000000-mapping.dmp
    • memory/2604-173-0x0000000000000000-mapping.dmp
    • memory/3296-161-0x0000000000000000-mapping.dmp
    • memory/3464-162-0x0000000000000000-mapping.dmp
    • memory/3580-170-0x0000000000000000-mapping.dmp
    • memory/3636-171-0x0000000000000000-mapping.dmp
    • memory/3644-175-0x0000000000000000-mapping.dmp
    • memory/3732-148-0x0000000000000000-mapping.dmp
    • memory/3928-169-0x0000000000000000-mapping.dmp
    • memory/4248-174-0x0000000000000000-mapping.dmp
    • memory/4416-168-0x0000000000000000-mapping.dmp
    • memory/4440-141-0x0000000000000000-mapping.dmp
    • memory/4680-167-0x0000000000000000-mapping.dmp
    • memory/4688-135-0x0000000000000000-mapping.dmp
    • memory/4744-146-0x0000000000000000-mapping.dmp