Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c482a9abee2a821…

MALICIOUS

PDF

33.5 KB Created: 2021-06-19 12:38:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3bdd5a5740844ead7ba57e76c7044463 SHA-1: 62f6e0c5c86787ab133ffd1cc8bb8e8b1d0db9f9 SHA-256: 6c482a9abee2a82194d4303479bfb4a1e36497696d1dc8375bc65e79c731e2d6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.co/app/431946152/how-to-get-free-robux-on-iphone-game-hack PDF link annotation
    • http://library.umuslim.ac.id//repository/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-apk_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-do-admins-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-fun-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/minecraft-bedrock-client_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/roblox-but_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-get-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-codes-for-roblox-assassin_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-roblox-characters_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/freespins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-hacker-outfit_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_off00002d6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D6D 21692 bytes
SHA-256: 9c1fa5b57c05353497443d6846852b6f576f74b772040037e9e3bab5e533ab44
font_01_sfnt_off00005ceb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CEB 19328 bytes
SHA-256: 611facc0ebe53277e6875418a9080e29f4818c8822afe77d04b044b7175153fa

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