Malicious PDF — malware analysis report

Static analysis result for SHA-256 60caca1707f6db56…

MALICIOUS

PDF

227.9 KB Created: 2021-07-04 08:18:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: fe5b399d769b5954c68996d68c39b223 SHA-1: 7c2de3c1974bc99240cc7f44240c6968c5fdefb3 SHA-256: 60caca1707f6db562a5f4dbeb39b6bc11c7558aa4cc37015bf8589d906b02016
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains heuristics indicating it presents a fake CAPTCHA and a browser extension installation lure to trick the user. It also contains an embedded URI pointing to a suspicious URL, likely for downloading a secondary payload. The document body, though partially corrupted, references a URL related to game hacks, aligning with social engineering tactics.

Machine Learning

  • Nyx PDF Classifier clean score 0.0118

Heuristics 6

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/1094591345/is-pokemon-go-free-to-download-game-hack
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/a-code-that-gives-you-free-robux_GM431946152.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/how-to-get-free-tattos-in-roblox_GM431946152.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/roblox-redeem-robux_GM431946152.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/coin-master-free-soins_GM406889139.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/robloxbux-us-generator_GM431946152.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/free-minecraft-account-and-password_GM479516143.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/earn-robux-for-freecom_GM431946152.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/free-shields-coin-master_GM406889139.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/blogger-coin-master-free-spins_GM406889139.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/50-free-spins-coin-master-links_GM406889139.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/coin-master-daily-free-spins-link-app_GM406889139.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/free-coin-spin-daily-link-coin-master_GM406889139.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/free-robux-codes_GM431946152.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/free-spins-promo-code-for-coin-master_GM406889139.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/roblox-adopt-me-hacks-2021_GM431946152.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/free-item-give-obby-roblox_GM431946152.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/best-free-minecraft-servers_GM479516143.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/free-spin-coin-master-2021_GM406889139.pdf
    • https://elearning.mtsn6blitar.com/__statics/gudangsoal/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_023_off00032317.bin
06724a503afe51e13d7a15efcdf540062d4777d93eba8b104e2faeed2112c0ba		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32317 25576 bytes
font_01_sfnt_off00035f27.bin
05af2b3813ba21ece7bb2df7f901ea99817295b5e34cb066a84ed72981aa6b0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x35F27 18940 bytes

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