Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f2d02cba07a40ee…

MALICIOUS

PDF

34.8 KB Created: 2021-07-10 03:22:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3b35141a66ddb27881535a6aa0b30f5f SHA-1: 7132e35028901625ab4e7b8a9a29116420b21887 SHA-256: 0f2d02cba07a40eeeb8465bfb201226e92d1857d7a99a44260c6f4fa9857838a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free currency, directing users to a suspicious URL. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs and a call-to-action phrase reinforces the phishing or malware distribution intent. No scripts were extracted, but the document's structure and content point towards a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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/431946152/get-robux-today-game-hack PDF link annotation
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/how-to-hack-in-roblox-games-2021_GM431946152.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/robux-points-redeem-free-gift-cards_GM431946152.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/roblox-hack-lua-game-guardian_GM431946152.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/coin-master-spin-link_GM406889139.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/free-robux-2021-generator_GM431946152.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/how-to-get-free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/coin-master-spin-link-2021_GM406889139.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/headless-head-roblox-free_GM431946152.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/free-roblox-com_GM431946152.pdfIn PDF document text
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/code-pour-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F5D 22888 bytes
SHA-256: 56b17bed64b2104b242fa3bd180c4e0e34b13047a7593f64a1c1946de917250e
font_01_sfnt_off00006306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6306 19012 bytes
SHA-256: 9215c9201218ab6c8d10252376bfc8cd06165ecb9060389a52a88ae940a9f8ad

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