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Analysis

  • max time kernel
    134s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    24/12/2023, 15:19

General

  • Target

    03785c361c90be52900c5136081911e6.exe

  • Size

    249KB

  • MD5

    03785c361c90be52900c5136081911e6

  • SHA1

    c44b7caedf38bcabb8813f8a7f2720782c66e161

  • SHA256

    6dbbe86be4a70e91a8b8f1e21202b6e733dec8d35f535cd81643fcd02e8e263b

  • SHA512

    dbf4bb452dd50f6743edad031be99f47f003c6bebbd675c656ab6836f9b064d68599d64d70aa4d08ecff39416d4b274deca952fb8eaf9ff5550a67ba3bd02a84

  • SSDEEP

    3072:obpDCw1p3vmLvsZIaVwiwDcIbDHDCm/DER4eQSq54p1YYhD/6KgXz:gDCwfG1bnxLERRLT3YYhLrgXz

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
  • Loads dropped DLL 5 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 key 1 TTPs 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\03785c361c90be52900c5136081911e6.exe
    "C:\Users\Admin\AppData\Local\Temp\03785c361c90be52900c5136081911e6.exe"
    1⤵
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2064
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:2548
    • 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
      • Loads dropped DLL
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2140
      • C:\Users\Admin\AppData\Local\Temp\avscan.exe
        C:\Users\Admin\AppData\Local\Temp\avscan.exe
        3⤵
        • Executes dropped EXE
        PID:2836
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c c:\windows\W_X_C.bat
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2608
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2776
        • 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:2644
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1224
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2264
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1564
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1976
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c c:\windows\W_X_C.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2804
      • 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
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in Windows directory
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2580
        • 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:2400
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c c:\windows\W_X_C.bat
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1080
          • C:\windows\hosts.exe
            C:\windows\hosts.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:2240
          • 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:484
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:1764
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:2312
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:1816
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:2368
      • 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:2936

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Admin.bmp

    Filesize

    547KB

    MD5

    e481594d5dc008525a424d94442b99b8

    SHA1

    f83a63bd6d3d5dff5dffe5fec97e4c4280163189

    SHA256

    a5ffa38752f3ab799f7a769fca635d9784a6f1b58a183e58aaa0acc6b3d210c4

    SHA512

    43c6f21b253de549c3ac1415af03feb3b35a087c1e0c0c572281df48c9ffac9d740fe8ad44f6b3738cda540047282faeb2c3876c68165a132105c775c3919f21

  • C:\Users\Admin\AppData\Local\Temp\Admin.bmp

    Filesize

    797KB

    MD5

    6ef769bbe12775b035b51344f71c4721

    SHA1

    55b990a6d65a7c765ccf84a7bdd9c6efc8847bc7

    SHA256

    ad53cea4576b3668dbaf11978c2fe5210b7f6a67810832ee4303c625060f486e

    SHA512

    5f70b006c95120ca0c82343d44d7a370ee9b24420a14670dfd888811bfbffb8d8064aa5155dc7c89434c71a064fdc7380e9b138d8ece567349722238384359b8

  • C:\Users\Admin\AppData\Local\Temp\Admin.bmp

    Filesize

    1.0MB

    MD5

    8879d59b94344a79644e2602a8bf1569

    SHA1

    14b64c29314285cba1b179684326b2792789b239

    SHA256

    4a8c60f264eb418f67f682301df9f13db3f2415b94c860a2805559d249f471fa

    SHA512

    e293a472dd6dfa18fa34e2ccc43cb2d6b0b74152a5c4d2a1a25923730170f952018422f8435d2ced4ac64c669c0a47b4e75058a4fcc550ac004170d13de75076

  • C:\Users\Admin\AppData\Local\Temp\Admin.bmp

    Filesize

    1.3MB

    MD5

    47d9a0501be64d936d498f129f198179

    SHA1

    d09956f920c6e4d65e2dcaed6db3d3a7a1729f89

    SHA256

    5c5e3c6ac3a03e81ff233aff377d8fda5b978e91bdc94dbdb8b28907e9ce934c

    SHA512

    bb5336742da2826272bf5a9e07cba215cd582dd5eae5a58aa6d8bcab02229a2b6e8f249a95d372df0e1d55119f3b191c75375cf484df7fe5527c6b032f151719

  • C:\Users\Admin\AppData\Local\Temp\Admin.bmp

    Filesize

    1.5MB

    MD5

    a6c9601580043ded493dc0e6817d0819

    SHA1

    4f1971d7ec128a90ebf0299fd27dae3256626077

    SHA256

    bb2e95e9bc7c7dee9ac4ee22250fc63cb31ad779671f49ccf4928feca9f69891

    SHA512

    ac05cfc6c5e09e978ae04448be0ee5a625066e383ad795dfa2011a4e0839d67be36bb1bc565bcf4ffa008315bd34440616d4143871cdffb20308290ad3998c48

  • C:\Users\Admin\AppData\Local\Temp\Admin.bmp

    Filesize

    1.8MB

    MD5

    50670a1fc27c6ac715ee663219057445

    SHA1

    0025f6fb89c429d5c78b3bb779dddb87f8587ae8

    SHA256

    47466cac2f1b91a946d8da22aa82c976ef89b4388b0f2098d637dd4a4678ebe2

    SHA512

    4e83ab3d19ff15f1cb087c3e5ab5fa5e6ed725153e5688d13b5a28a4f58dca106f22e34810f8f99101e03ed8047ec8e6990cd84495df4cc343beb211084f38ba

  • C:\Users\Admin\AppData\Local\Temp\Admin.bmp

    Filesize

    2.0MB

    MD5

    fc6901d571009c228467b436e0fa39fc

    SHA1

    8ccff1d5d23400825b5795ac2819859ac4d98689

    SHA256

    0ecb5bb5b1b64f364b7c4a7653bca6af6b3045fa731a6ac2745571f699b16956

    SHA512

    a2444f054ddb3fb7cf7573e590b677ce8d774370c8f54f9fae0aa033ddb79bbbe71e7519015ec0a8bb6dec6c4cc74f0164df5d9d467d4ba27b3f6e78d800a147

  • C:\Windows\W_X_C.bat

    Filesize

    336B

    MD5

    4db9f8b6175722b62ececeeeba1ce307

    SHA1

    3b3ba8414706e72a6fa19e884a97b87609e11e47

    SHA256

    d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

    SHA512

    1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b

  • C:\Windows\W_X_C.vbs

    Filesize

    195B

    MD5

    22f1fd14fe325764dab227173a9f41dd

    SHA1

    c261874cfc4188ca7143ab388abd013c75ee025a

    SHA256

    02c1c47b6a5a4d22b04d36f9f34e3f2f0a1c3153512f8e7aa115c4f60fe7f1ae

    SHA512

    1522c988877c80f38833b8fac45ed36850be2eeb6c9d06d00a4baa67c7f85157dd11553ff82ee4cdf38172cffee841e30ca6c93d090bf608b060222549646ed9

  • C:\Windows\hosts.exe

    Filesize

    249KB

    MD5

    f5a162d0a8f97fe703169e8f4721f87a

    SHA1

    968be97c92f7dfdfd855b1231647a3979a438c8b

    SHA256

    ffc5ceac8f1fbdb224b91b33d536b78aaa4afd8725ffc622950db368059babdf

    SHA512

    331b3eb4fdbb98afc1e8e52cc0d8f9ad77d8d2b524a00aa20b3a731e0a9b684046a8752ac1aeaa7348813a334891af65af30ffe850710d6db8bb69ad7bd71ea6

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

    Filesize

    249KB

    MD5

    206f5c6a44a62e3bd068cebf0ecf4b86

    SHA1

    b75942123859f310e27d35ad7ca8b8e3461072e5

    SHA256

    670b2dc3bbf345c068f6b784c6ef1706d6b758a68d9440750a143b029a5c467e

    SHA512

    56154ce7ef9ea668c833d893a7213101f25f3d3ca5e8d6bd26157bbdf10015e00c9076333d476b8c79fe24268d86a3fe8bb8a80f5d01743b9ac5a4fe514dbb77