Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d10210db10098a8…

MALICIOUS

PDF

42.6 KB Created: 2021-05-12 14:50:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 51bd07852e23de77d4d70f62697c66d2 SHA-1: c391e5eb08f6023a0f4915f1d8d675e4f8ba90a3 SHA-256: 1d10210db10098a8e931d8611e4bf242f8cc764853ee16849f46325d74fa8ef9
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 0.9971

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/coin-master-free-spins-and-coins-app-download-game-hack PDF link annotation
    • http://www.jetape.com.br/ckfinder/userfiles/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/roblox-source_GM431946152.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/roblox-assassin_GM431946152.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-attack-hack_GM406889139.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/roblox-robux-generator-tool_GM431946152.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/play-games-for-robux_GM431946152.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/free-roblox-card-codes_GM431946152.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-free-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.jetape.com.br/ckfinder/userfiles/files/free-coin-master-links_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_off00004c40.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C40 24580 bytes
SHA-256: 85b2d64948efca1a966f43e46b39bd76685108e80a778c85d97a159f148c7595
font_01_sfnt_off0000838e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x838E 18464 bytes
SHA-256: 477b46039d07fe0ad2634a21c74d959d313d9d885c77ebd9dc4a513f15d0eb77

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