Overview

overview

10

Static

static

5

b21cf75d3a...18.exe

windows7-x64

10

b21cf75d3a...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    16/06/2024, 06:23

Sharing

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General

  • Target

    b21cf75d3af35edff90548d77f47ed24_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    b21cf75d3af35edff90548d77f47ed24

  • SHA1

    33ee13f7b0bc65413d341f17fced080da3e2572d

  • SHA256

    0d78f3d3721275e6f861b09f7f0f20d1cb83da011cf3ef1b6d3265e2928492d6

  • SHA512

    410b1ed4f22290f4ef06ebcfa4d92cd5bfea2c19b862d5a35a50e33ba650f2eb34a28f2b040413cc638b2fbc6b023a2983abf596df6c316d5e1d57f0a9e93b6d

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj69:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm52

Score
10/10
evasionpersistencespywarestealertrojan

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
    evasion
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
    evasion
  • Windows security bypass 2 TTPs 5 IoCs
    evasiontrojan
  • Disables RegEdit via registry modification 1 IoCs
    evasion
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Windows security modification 2 TTPs 6 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 2 IoCs
    persistence
  • AutoIT Executable 8 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b21cf75d3af35edff90548d77f47ed24_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b21cf75d3af35edff90548d77f47ed24_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2260
    • C:\Windows\SysWOW64\vndggaessd.exe
      vndggaessd.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Loads dropped DLL
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2120
      • C:\Windows\SysWOW64\gexafjtm.exe
        C:\Windows\system32\gexafjtm.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2520
    • C:\Windows\SysWOW64\tkujggwqpkdjeha.exe
      tkujggwqpkdjeha.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2748
    • C:\Windows\SysWOW64\gexafjtm.exe
      gexafjtm.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2316
    • C:\Windows\SysWOW64\nwnrqepmdvhtx.exe
      nwnrqepmdvhtx.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2704
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\mydoc.rtf"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2496
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:2536

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe
            Filesize

            512KB

            MD5

            a05a17498cf20a7c293ab981a3695b4c

            SHA1

            5686d3017c94f0b3364c212f28baa13d5fc79f81

            SHA256

            49f61f75fcfe45410d10db174842b507a02f1dc875f25bf6de10a7dbd331919f

            SHA512

            463e32c276f02091ced61cffc16046d3d1682696fc38c5d31670e29622610cba91688bc424210e46ff8a0748568d3eae6cbedc733b89f464beab405fdb2fb032

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          • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe
            Filesize

            512KB

            MD5

            8d9a859f03c783f0b9d720382d2749f2

            SHA1

            374dfffcd15e8786ce67e134d370e200df3538b8

            SHA256

            f24bace651f49f19109393744125673c7437163d25663b6468de5e937c7bc702

            SHA512

            265e36ba5eb2d8c461832fc0ee69a0e392fafe50fa623a57d258aa175ca73b68247d72e956ad9e6abb1f171cb4241853a6124a461108d711d694d0095c25c18b

            Download Submit

          • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm
            Filesize

            20KB

            MD5

            74f385c1b0ce502c8c7ebc1f04e092bb

            SHA1

            575354279fe5c4829c42c5ecf60912c6398a89a1

            SHA256

            6e5cf7fc6373060ea467ad58a4014557ebe39bae7dd4c1c6a5337068377eec88

            SHA512

            cd2e57495e08537406071401b166429fb0aab15d568f49d8675a0e8f73cb32dd2e0b5594ac291f588a18925666ad076f615222bf1ccacbf7654979eff143e7a2

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          • C:\Users\Admin\Downloads\UnpublishFormat.doc.exe
            Filesize

            512KB

            MD5

            b65a47a06ec491a54bb9826f90ed1b5b

            SHA1

            4b9f24920c55c508e5fb84618d6df80c59a08a43

            SHA256

            6f5ca9ce369966909079c25f5970bab7dc130ac2552983571156c15a7c7e49c2

            SHA512

            82a0a39782926fbf9e0771fb2f4c31e6ee1f8d491d581d3e01f874e4ed2f8e5341b74997a94b70e984159765659516ca6e6cbf0bf65275eeb36fd9daddff7aab

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          • C:\Windows\SysWOW64\nwnrqepmdvhtx.exe
            Filesize

            512KB

            MD5

            de2b949ce06122d2e7d05c08c70ee8c3

            SHA1

            8d551cce5c3f63e53dceed0a78faec37d29a03a5

            SHA256

            b11468a344935ee90031e9eee4775d6ecda152a5e990df550e64be0583d3217c

            SHA512

            373f3b2711c40493073c26c8eda7869f2bddb2a049574c895d6b7951baeff2818bba244d99d0934b5deb1721d038515e07c776016d3cf581550767993416b045

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          • C:\Windows\SysWOW64\tkujggwqpkdjeha.exe
            Filesize

            512KB

            MD5

            af878b50d5c79fd65dbab6c0f09ca6e4

            SHA1

            ec810180ab2c4b617f173a518b087f65cb19b77c

            SHA256

            61f312ecc62873197b427471a7b36e50d8a87b0e6e7a96beedc1c9b65e1cddb0

            SHA512

            16309ab1234e39f21e713884b5175defd8329e1513e7c767b5a147dcd33d33c9b2d7342456eecad798d36f62873e3c684f919c8bdc12a59c6439fc81b14c8f06

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          • C:\Windows\mydoc.rtf
            Filesize

            223B

            MD5

            06604e5941c126e2e7be02c5cd9f62ec

            SHA1

            4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

            SHA256

            85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

            SHA512

            803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

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          • \Windows\SysWOW64\gexafjtm.exe
            Filesize

            512KB

            MD5

            402fb7e649adba87f0b7614d80823fd5

            SHA1

            be9a12fdd7a754c0b5e2581471a231f9106171ff

            SHA256

            a8be02be808c41a00e952641ead80a0c85ac5016a48b2cb37a038d7163e1de1d

            SHA512

            e64447460dbbc45d01e1e3bcd242b77241e1cfbda1ebd06afad8690c631f3540b1251bca255b38e64174b25683a527cac83ecbe11b80752f71c5fdeb6c99f31f

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          • \Windows\SysWOW64\vndggaessd.exe
            Filesize

            512KB

            MD5

            4122b325b367eb931ae1ba69520ada0b

            SHA1

            214b66c78a1cf83a037711367da85dc664ffb187

            SHA256

            a4843e4cf1e05168ff170f4d5cdc4380e63e3e72cf29af196eabbc76926e66d6

            SHA512

            4246291ff6f7ee82237b80b53b16ea05e65569930c5757e830fcd6eb22b9e25c77f7a9efd69ec114dd9bde0ac78fab5ca5a7789f4558effe6191911f900e7b02

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          • memory/2260-0-0x0000000000400000-0x0000000000496000-memory.dmp

            Filesize

            600KB

            Download

          • memory/2496-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

            Download

          • memory/2496-99-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

            Download