Analysis

  • max time kernel
    147s
  • max time network
    155s
  • 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 19:01

General

  • Target

    1d0f660959abdd07b7f4002a77e2c33424513fb47fbad7be27f24ee689644c21.exe

  • Size

    339KB

  • MD5

    539c64d71bc9395464850b6183ef641a

  • SHA1

    c09da93b232d660f3d7554a257fefdc8be4678de

  • SHA256

    1d0f660959abdd07b7f4002a77e2c33424513fb47fbad7be27f24ee689644c21

  • SHA512

    b3158d308916e4dbbeeb9019faff7790c2630a95e69f898d5f3ff0ef021750130e681f26c5acd29914abf9b06732785d3f8518e42623d137b707e5c21cbd2005

  • SSDEEP

    3072:obpDCw1p3vmLvsZIaVwiwDcIbDHDCm/DER4eQwbpDCw1p3vmLvsZIaVwiwDcIbDO:gDCwfG1bnxLERR7DCwfG1bnxLERR3

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 3 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1d0f660959abdd07b7f4002a77e2c33424513fb47fbad7be27f24ee689644c21.exe
    "C:\Users\Admin\AppData\Local\Temp\1d0f660959abdd07b7f4002a77e2c33424513fb47fbad7be27f24ee689644c21.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 behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4320
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:2056
    • 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:4600
      • 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:4500
      • 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:3144
        • 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:4380
          • 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:5088
          • 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:2588
            • C:\windows\hosts.exe
              C:\windows\hosts.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:2188
            • 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:3728
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:1964
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:2692
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:1824
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4500
        • 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:2640
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4220
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3016
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3436
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2348
    • 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:4300
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1460
      • 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:4732
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3760

    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

      339KB

      MD5

      1fa155084cf1b751f102836e6a00f9bf

      SHA1

      b7868f35063ed6becdf80521026560e4b7309848

      SHA256

      af322b11ae42a6d32009012ffcaa2ff573d9e18bed56a18c5f58d14d5506e602

      SHA512

      3bdbcf01596856fb44ef2c3b38462cb870217cbb481a35d9173083c6380d826b33087c519eff251ed41c024c91d2a5a3054c6095100b3902732eb0c5496fd73f

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

      339KB

      MD5

      1fa155084cf1b751f102836e6a00f9bf

      SHA1

      b7868f35063ed6becdf80521026560e4b7309848

      SHA256

      af322b11ae42a6d32009012ffcaa2ff573d9e18bed56a18c5f58d14d5506e602

      SHA512

      3bdbcf01596856fb44ef2c3b38462cb870217cbb481a35d9173083c6380d826b33087c519eff251ed41c024c91d2a5a3054c6095100b3902732eb0c5496fd73f

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

      339KB

      MD5

      1fa155084cf1b751f102836e6a00f9bf

      SHA1

      b7868f35063ed6becdf80521026560e4b7309848

      SHA256

      af322b11ae42a6d32009012ffcaa2ff573d9e18bed56a18c5f58d14d5506e602

      SHA512

      3bdbcf01596856fb44ef2c3b38462cb870217cbb481a35d9173083c6380d826b33087c519eff251ed41c024c91d2a5a3054c6095100b3902732eb0c5496fd73f

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

      339KB

      MD5

      1fa155084cf1b751f102836e6a00f9bf

      SHA1

      b7868f35063ed6becdf80521026560e4b7309848

      SHA256

      af322b11ae42a6d32009012ffcaa2ff573d9e18bed56a18c5f58d14d5506e602

      SHA512

      3bdbcf01596856fb44ef2c3b38462cb870217cbb481a35d9173083c6380d826b33087c519eff251ed41c024c91d2a5a3054c6095100b3902732eb0c5496fd73f

    • C:\Windows\W_X_C.vbs
      Filesize

      195B

      MD5

      5b87381bf407d7c6018a8b11c3e20f92

      SHA1

      bb61b28d9c8fd7dfeb13a397c49a1be3abc06ca2

      SHA256

      4785d6a229d0872fe90c75ab620de9a680d7f07ccd27a134da2afc4ee88f34f3

      SHA512

      05db1178f671e9d6c3a1c601349093447b04ebddcd071a06f7cc92cbaf7efb53027bc92523a19372a08ca5af715cc9955649255f8be1909b5e594385b3dcbe3d

    • C:\Windows\hosts.exe
      Filesize

      339KB

      MD5

      7f0b5f5d0bea561c3bea108980e3b799

      SHA1

      14247ee6d9bf71de2457025c05920105d61314b1

      SHA256

      b64889edc7d55fb49e49f3c678e97114d922c0d0948a6af30c064b92003a98e7

      SHA512

      1e57cd6ef780b4052a8f8439130bee64778f74b3cd64882d56f3be765f474eb6ff23010430a372cad4df93d5b93cda35afad05c8c0d5735451011f2e992e1113

    • C:\Windows\hosts.exe
      Filesize

      339KB

      MD5

      7f0b5f5d0bea561c3bea108980e3b799

      SHA1

      14247ee6d9bf71de2457025c05920105d61314b1

      SHA256

      b64889edc7d55fb49e49f3c678e97114d922c0d0948a6af30c064b92003a98e7

      SHA512

      1e57cd6ef780b4052a8f8439130bee64778f74b3cd64882d56f3be765f474eb6ff23010430a372cad4df93d5b93cda35afad05c8c0d5735451011f2e992e1113

    • C:\Windows\hosts.exe
      Filesize

      339KB

      MD5

      7f0b5f5d0bea561c3bea108980e3b799

      SHA1

      14247ee6d9bf71de2457025c05920105d61314b1

      SHA256

      b64889edc7d55fb49e49f3c678e97114d922c0d0948a6af30c064b92003a98e7

      SHA512

      1e57cd6ef780b4052a8f8439130bee64778f74b3cd64882d56f3be765f474eb6ff23010430a372cad4df93d5b93cda35afad05c8c0d5735451011f2e992e1113

    • C:\Windows\hosts.exe
      Filesize

      339KB

      MD5

      7f0b5f5d0bea561c3bea108980e3b799

      SHA1

      14247ee6d9bf71de2457025c05920105d61314b1

      SHA256

      b64889edc7d55fb49e49f3c678e97114d922c0d0948a6af30c064b92003a98e7

      SHA512

      1e57cd6ef780b4052a8f8439130bee64778f74b3cd64882d56f3be765f474eb6ff23010430a372cad4df93d5b93cda35afad05c8c0d5735451011f2e992e1113

    • C:\windows\hosts.exe
      Filesize

      339KB

      MD5

      7f0b5f5d0bea561c3bea108980e3b799

      SHA1

      14247ee6d9bf71de2457025c05920105d61314b1

      SHA256

      b64889edc7d55fb49e49f3c678e97114d922c0d0948a6af30c064b92003a98e7

      SHA512

      1e57cd6ef780b4052a8f8439130bee64778f74b3cd64882d56f3be765f474eb6ff23010430a372cad4df93d5b93cda35afad05c8c0d5735451011f2e992e1113

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

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b

    • memory/1460-151-0x0000000000000000-mapping.dmp
    • memory/1824-175-0x0000000000000000-mapping.dmp
    • memory/1964-171-0x0000000000000000-mapping.dmp
    • memory/2056-134-0x0000000000000000-mapping.dmp
    • memory/2188-164-0x0000000000000000-mapping.dmp
    • memory/2348-176-0x0000000000000000-mapping.dmp
    • memory/2588-162-0x0000000000000000-mapping.dmp
    • memory/2640-165-0x0000000000000000-mapping.dmp
    • memory/2692-173-0x0000000000000000-mapping.dmp
    • memory/3016-172-0x0000000000000000-mapping.dmp
    • memory/3144-145-0x0000000000000000-mapping.dmp
    • memory/3436-174-0x0000000000000000-mapping.dmp
    • memory/3728-169-0x0000000000000000-mapping.dmp
    • memory/4220-170-0x0000000000000000-mapping.dmp
    • memory/4300-146-0x0000000000000000-mapping.dmp
    • memory/4380-148-0x0000000000000000-mapping.dmp
    • memory/4500-141-0x0000000000000000-mapping.dmp
    • memory/4500-177-0x0000000000000000-mapping.dmp
    • memory/4600-135-0x0000000000000000-mapping.dmp
    • memory/4732-163-0x0000000000000000-mapping.dmp
    • memory/5088-156-0x0000000000000000-mapping.dmp