Analysis

  • max time kernel
    158s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/10/2023, 19:58

General

  • Target

    NEAS.9f8d90381cce6d6efa9e5d1bc5835ab0.exe

  • Size

    4.3MB

  • MD5

    9f8d90381cce6d6efa9e5d1bc5835ab0

  • SHA1

    e92fbaac46051b28d1e751da21a68b875284bedf

  • SHA256

    75252465fd562d56fe07990cd992a5f32bfaabeaa21f29c763762ddf3898d603

  • SHA512

    94b1e774cb4a17ccd724cc037612fc5609261f894988afaf21cd00e0d27f4a3af34cca81244fde5503e7e67895ec34ce90f3735af7ec30c7c9d9ab79a4afd78e

  • SSDEEP

    98304:gm7um7om7Vm7om7um7om7Vm7om7um7om7Vm7om7um7om7Vm7om7um7om7Vm7om77:gm7um7om7Vm7om7um7om7Vm7om7um7ot

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
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 6 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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\NEAS.9f8d90381cce6d6efa9e5d1bc5835ab0.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.9f8d90381cce6d6efa9e5d1bc5835ab0.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:1776
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:4540
    • 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:2812
      • 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:2168
      • 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:5112
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:4864
        • 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:2472
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4684
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:316
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1716
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2316
    • 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:4168
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • 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:3708
        • C:\Users\Admin\AppData\Local\Temp\avscan.exe
          C:\Users\Admin\AppData\Local\Temp\avscan.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:1640
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
          4⤵
          • Checks computer location settings
          • Modifies registry class
          • Suspicious use of WriteProcessMemory
          PID:2916
          • C:\windows\hosts.exe
            C:\windows\hosts.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:1768
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
            5⤵
            • Adds policy Run key to start application
            PID:2816
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:700
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:3584
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:1664
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:4272
      • 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:3028
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3096

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      4.3MB

      MD5

      03abd4c70c3036eb9d47877ec151cffb

      SHA1

      375e0192606acd0a6483441eeedcedc866b1bda3

      SHA256

      ff698a0b4e783df3c25c7047482be4f901cec9839203cc2f0f7069f935e33b70

      SHA512

      324b6236939adef7ab1472d764ca38326a9a612249ad8243140f9b002799b632a80d815133d73dcbd5a8cf80982c1f1c33efa8bd1584e6ebe42d97571473e77c

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

      Filesize

      4.3MB

      MD5

      03abd4c70c3036eb9d47877ec151cffb

      SHA1

      375e0192606acd0a6483441eeedcedc866b1bda3

      SHA256

      ff698a0b4e783df3c25c7047482be4f901cec9839203cc2f0f7069f935e33b70

      SHA512

      324b6236939adef7ab1472d764ca38326a9a612249ad8243140f9b002799b632a80d815133d73dcbd5a8cf80982c1f1c33efa8bd1584e6ebe42d97571473e77c

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

      Filesize

      4.3MB

      MD5

      03abd4c70c3036eb9d47877ec151cffb

      SHA1

      375e0192606acd0a6483441eeedcedc866b1bda3

      SHA256

      ff698a0b4e783df3c25c7047482be4f901cec9839203cc2f0f7069f935e33b70

      SHA512

      324b6236939adef7ab1472d764ca38326a9a612249ad8243140f9b002799b632a80d815133d73dcbd5a8cf80982c1f1c33efa8bd1584e6ebe42d97571473e77c

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

      Filesize

      4.3MB

      MD5

      03abd4c70c3036eb9d47877ec151cffb

      SHA1

      375e0192606acd0a6483441eeedcedc866b1bda3

      SHA256

      ff698a0b4e783df3c25c7047482be4f901cec9839203cc2f0f7069f935e33b70

      SHA512

      324b6236939adef7ab1472d764ca38326a9a612249ad8243140f9b002799b632a80d815133d73dcbd5a8cf80982c1f1c33efa8bd1584e6ebe42d97571473e77c

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      8dc761a5bd70aa8de0e69df734cc1b5d

      SHA1

      141b753bb62edf7c09bcae744b837fe6cbd54b87

      SHA256

      6ba885c570d52ea2e9385e0d91b5a9235813e450798ea73815853e6941212682

      SHA512

      3c03d3f6a865f04bfcbc69deec00db554e9a6e84c8375e4d0a509cb5a72e6c0cbd35dd75d53e2edce63bcd7b6ff63d6c33be6203332fa34d4f6643c138ab8437

    • C:\Windows\hosts.exe

      Filesize

      4.3MB

      MD5

      775ab9b300bb2058c409a537710c8227

      SHA1

      9a20bf108c534b00c97cb08038c1a52279da858f

      SHA256

      235a8147d720c16a119bd6188b30896635a5e8265158129af72383e29c1986f8

      SHA512

      1e2d7cccba8943ff561a1097088d616f70cb7aee9728707814be13c944e5b335304ce66088423d5811c07ddc002e39bf5572d1e9e03f8701c7856770825338a4

    • C:\Windows\hosts.exe

      Filesize

      4.3MB

      MD5

      775ab9b300bb2058c409a537710c8227

      SHA1

      9a20bf108c534b00c97cb08038c1a52279da858f

      SHA256

      235a8147d720c16a119bd6188b30896635a5e8265158129af72383e29c1986f8

      SHA512

      1e2d7cccba8943ff561a1097088d616f70cb7aee9728707814be13c944e5b335304ce66088423d5811c07ddc002e39bf5572d1e9e03f8701c7856770825338a4

    • C:\Windows\hosts.exe

      Filesize

      4.3MB

      MD5

      775ab9b300bb2058c409a537710c8227

      SHA1

      9a20bf108c534b00c97cb08038c1a52279da858f

      SHA256

      235a8147d720c16a119bd6188b30896635a5e8265158129af72383e29c1986f8

      SHA512

      1e2d7cccba8943ff561a1097088d616f70cb7aee9728707814be13c944e5b335304ce66088423d5811c07ddc002e39bf5572d1e9e03f8701c7856770825338a4

    • C:\Windows\hosts.exe

      Filesize

      4.3MB

      MD5

      775ab9b300bb2058c409a537710c8227

      SHA1

      9a20bf108c534b00c97cb08038c1a52279da858f

      SHA256

      235a8147d720c16a119bd6188b30896635a5e8265158129af72383e29c1986f8

      SHA512

      1e2d7cccba8943ff561a1097088d616f70cb7aee9728707814be13c944e5b335304ce66088423d5811c07ddc002e39bf5572d1e9e03f8701c7856770825338a4

    • C:\Windows\hosts.exe

      Filesize

      4.3MB

      MD5

      775ab9b300bb2058c409a537710c8227

      SHA1

      9a20bf108c534b00c97cb08038c1a52279da858f

      SHA256

      235a8147d720c16a119bd6188b30896635a5e8265158129af72383e29c1986f8

      SHA512

      1e2d7cccba8943ff561a1097088d616f70cb7aee9728707814be13c944e5b335304ce66088423d5811c07ddc002e39bf5572d1e9e03f8701c7856770825338a4

    • C:\windows\hosts.exe

      Filesize

      4.3MB

      MD5

      775ab9b300bb2058c409a537710c8227

      SHA1

      9a20bf108c534b00c97cb08038c1a52279da858f

      SHA256

      235a8147d720c16a119bd6188b30896635a5e8265158129af72383e29c1986f8

      SHA512

      1e2d7cccba8943ff561a1097088d616f70cb7aee9728707814be13c944e5b335304ce66088423d5811c07ddc002e39bf5572d1e9e03f8701c7856770825338a4

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b