Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbfd74e52bc31d6d…

MALICIOUS

PDF

44.9 KB Created: 2021-05-19 11:32:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 15555a93061121ba83d22a119eb46b11 SHA-1: 58d81c19a9b146f0de7a095b46c29b90ef41a539 SHA-256: bbfd74e52bc31d6dd5bd551f527ca3925c211152b92a9f67621399dc6bfca1b5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "free coin master game hack" and includes multiple embedded URLs pointing to similar scam-related content. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest a phishing or scam attempt, likely leading to a malicious download or further redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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 https://netcdn.xyz/app/406889139/free-coin-master-game-game-hack PDF link annotation
    • http://membersonlysupplements.com/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://membersonlysupplements.com/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://membersonlysupplements.com/images/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://membersonlysupplements.com/images/se-puede-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://membersonlysupplements.com/images/free-appsfor-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://membersonlysupplements.com/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://membersonlysupplements.com/images/daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://membersonlysupplements.com/images/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://membersonlysupplements.com/images/smart-lodhi-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://membersonlysupplements.com/images/how-to-get-100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://membersonlysupplements.com/images/are-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://membersonlysupplements.com/images/robux-without-verification_GM431946152.pdfIn PDF document text
    • http://membersonlysupplements.com/images/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://membersonlysupplements.com/images/blox-rewards_GM431946152.pdfIn PDF document text
    • http://membersonlysupplements.com/images/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://membersonlysupplements.com/images/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://membersonlysupplements.com/images/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://membersonlysupplements.com/images/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://membersonlysupplements.com/images/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://membersonlysupplements.com/images/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004830.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4830 25384 bytes
SHA-256: 3b517c3311fc9ea140e5f289c2096ea9524d7030ab84a7169dd2451aaaab79fb
font_01_sfnt_off000082e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82E1 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off00008e0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E0B 17968 bytes
SHA-256: 26c9c4b875abe90d5a203e632a25aafef6162dffda8186c61deacbdf7b71a521

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