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Analysis

  • max time kernel
    134s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/12/2022, 23:23

General

  • Target

    44da43b39e86d7d67da9b05feb586f7077f935c23c780a1033774702c76f8c36.exe

  • Size

    195KB

  • MD5

    9468c8093437fcb3e5a83662398990a4

  • SHA1

    883a0c3cfc7302255124420f2fa763665e1a08f4

  • SHA256

    44da43b39e86d7d67da9b05feb586f7077f935c23c780a1033774702c76f8c36

  • SHA512

    98b35ad9b4815f7dcbeb1e9d348ded8b91054fdfc95c5db37ac76e0b27ba591e9d65a803a1ce4af20215e829e8912d3810b5e169eaa35c4963abef4cae456838

  • SSDEEP

    3072:obpDCw1p3vmLvsZIaVwiwDcIbDHDCm/DEeoUsDnukbDktLgr7E:gDCwfG1bnxLE3bDnu3tZ

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\44da43b39e86d7d67da9b05feb586f7077f935c23c780a1033774702c76f8c36.exe
    "C:\Users\Admin\AppData\Local\Temp\44da43b39e86d7d67da9b05feb586f7077f935c23c780a1033774702c76f8c36.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:1508
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:3020
    • 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:440
      • 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:5020
      • 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:3440
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2284
        • 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:3428
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4000
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4452
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4532
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4080
    • 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:3040
      • 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:4784
        • 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:1648
        • 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:3524
          • C:\windows\hosts.exe
            C:\windows\hosts.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:3992
          • 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:3120
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:2444
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:3360
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:4812
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:4500
      • 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:1856
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4064

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      195KB

      MD5

      0cca37822b0b3abfbbf39dee4822c775

      SHA1

      c01fe9c8e7c0d445b861611d83bbc4de1c4492d3

      SHA256

      62fa718f3e1249b44ca790dd8066b0a19a52ad1a9343bbdba2d45d9ba645fb4a

      SHA512

      6e78ec731601d74a37ee762f0f79c241475996401dcf7e4ba66e193635a70de2f3d47518d15dac900e5de66b28a64230e6a5f21add42cbdb61bcf00883ff1859

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

      Filesize

      195KB

      MD5

      0cca37822b0b3abfbbf39dee4822c775

      SHA1

      c01fe9c8e7c0d445b861611d83bbc4de1c4492d3

      SHA256

      62fa718f3e1249b44ca790dd8066b0a19a52ad1a9343bbdba2d45d9ba645fb4a

      SHA512

      6e78ec731601d74a37ee762f0f79c241475996401dcf7e4ba66e193635a70de2f3d47518d15dac900e5de66b28a64230e6a5f21add42cbdb61bcf00883ff1859

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

      Filesize

      195KB

      MD5

      0cca37822b0b3abfbbf39dee4822c775

      SHA1

      c01fe9c8e7c0d445b861611d83bbc4de1c4492d3

      SHA256

      62fa718f3e1249b44ca790dd8066b0a19a52ad1a9343bbdba2d45d9ba645fb4a

      SHA512

      6e78ec731601d74a37ee762f0f79c241475996401dcf7e4ba66e193635a70de2f3d47518d15dac900e5de66b28a64230e6a5f21add42cbdb61bcf00883ff1859

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

      Filesize

      195KB

      MD5

      0cca37822b0b3abfbbf39dee4822c775

      SHA1

      c01fe9c8e7c0d445b861611d83bbc4de1c4492d3

      SHA256

      62fa718f3e1249b44ca790dd8066b0a19a52ad1a9343bbdba2d45d9ba645fb4a

      SHA512

      6e78ec731601d74a37ee762f0f79c241475996401dcf7e4ba66e193635a70de2f3d47518d15dac900e5de66b28a64230e6a5f21add42cbdb61bcf00883ff1859

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      7fc0db81060e343fd209dc050b401f77

      SHA1

      08ce8975b023bf90c21b8e64cd54fdd39debce04

      SHA256

      4a21d378652d4291a6b9e88a1934ac51e9eccd5c9a42aa09076219301509367f

      SHA512

      e0d13ba3713707f7cb9be56240930a8f47d8c302e692b49dcb01f7bdf3e3475f829e1ead60ce6a5f98bed591be96456e9c3ef67bb27f88dc70343c1412e9de57

    • C:\Windows\hosts.exe

      Filesize

      195KB

      MD5

      7b93ea405954796acad484f9513b9268

      SHA1

      19578d765566904f02992118707eac72c9695b50

      SHA256

      963410ffbdc648c00eefab97f622b8922ac3cfcef298b8ade78cbfe730689c20

      SHA512

      76beba9b4db25af2cc8ae7e8cd43deb8574c2a45d9cffef0a7f0bb15878ddc9d59916c7666a47001f42a11ef76cb530dedd3b575745ed393a45ebcdadece2728

    • C:\Windows\hosts.exe

      Filesize

      195KB

      MD5

      7b93ea405954796acad484f9513b9268

      SHA1

      19578d765566904f02992118707eac72c9695b50

      SHA256

      963410ffbdc648c00eefab97f622b8922ac3cfcef298b8ade78cbfe730689c20

      SHA512

      76beba9b4db25af2cc8ae7e8cd43deb8574c2a45d9cffef0a7f0bb15878ddc9d59916c7666a47001f42a11ef76cb530dedd3b575745ed393a45ebcdadece2728

    • C:\Windows\hosts.exe

      Filesize

      195KB

      MD5

      7b93ea405954796acad484f9513b9268

      SHA1

      19578d765566904f02992118707eac72c9695b50

      SHA256

      963410ffbdc648c00eefab97f622b8922ac3cfcef298b8ade78cbfe730689c20

      SHA512

      76beba9b4db25af2cc8ae7e8cd43deb8574c2a45d9cffef0a7f0bb15878ddc9d59916c7666a47001f42a11ef76cb530dedd3b575745ed393a45ebcdadece2728

    • C:\Windows\hosts.exe

      Filesize

      195KB

      MD5

      7b93ea405954796acad484f9513b9268

      SHA1

      19578d765566904f02992118707eac72c9695b50

      SHA256

      963410ffbdc648c00eefab97f622b8922ac3cfcef298b8ade78cbfe730689c20

      SHA512

      76beba9b4db25af2cc8ae7e8cd43deb8574c2a45d9cffef0a7f0bb15878ddc9d59916c7666a47001f42a11ef76cb530dedd3b575745ed393a45ebcdadece2728

    • C:\windows\hosts.exe

      Filesize

      195KB

      MD5

      7b93ea405954796acad484f9513b9268

      SHA1

      19578d765566904f02992118707eac72c9695b50

      SHA256

      963410ffbdc648c00eefab97f622b8922ac3cfcef298b8ade78cbfe730689c20

      SHA512

      76beba9b4db25af2cc8ae7e8cd43deb8574c2a45d9cffef0a7f0bb15878ddc9d59916c7666a47001f42a11ef76cb530dedd3b575745ed393a45ebcdadece2728

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b