Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd4608eedd1eac51…

MALICIOUS

PDF

43.2 KB Created: 2021-05-15 15:35:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 59726dcba05bde31e0bd5cb00aae58af SHA-1: 098a773af7f80828a208503df5911c6f5ead5f07 SHA-256: bd4608eedd1eac5154029a570bd45dc10a786941431a2466defa8207ae2c3265
122 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 0.9969

Heuristics 5

  • 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.
  • 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
  • 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/431946152/rbxoffer-com-free-robux-game-hack PDF link annotation
    • https://semanasantacehegin.com/images/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/ultimate-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/grab-points-login_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/www-free-robux_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/how-can-i-get-robux_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-minecraft-account-reddit_GM479516143.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-spins-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/coin-master-cards_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/roblox-free-item-codes_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/games-like-coin-master_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
    • https://semanasantacehegin.com/images/robux-no-survey_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-minecraft-education-edition_GM479516143.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • https://semanasantacehegin.com/images/coin-master-new-cards-hack_GM406889139.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000499c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x499C 26832 bytes
SHA-256: 20132e84f9127874847308ac9fa3dea18dfb9f08f7fdf927a3a79b266adc013b
font_01_sfnt_off00008698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8698 18276 bytes
SHA-256: 9aeb6f41d3354634239b7c8beac9b422ae3978a513a1679011b82127add4d155

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