Malicious PDF — malware analysis report

Static analysis result for SHA-256 17a38aceb63c494f…

MALICIOUS

PDF

33.6 KB Created: 2021-06-18 13:13:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 33984a38ec059ab30f6b0bcef89ce5b3 SHA-1: 1c73b3a5a802907f0c18646d2168c388c4edc111 SHA-256: 17a38aceb63c494fffc164b53fb1e8c174d9089358397805b5d89983dc4db74c
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/paste-hack-roblox-game-hack PDF link annotation
    • https://www.devries-group.de/images/get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
    • https://www.devries-group.de/images/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/is-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • https://www.devries-group.de/images/hackcom-roblox-robloxin_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/free-tiktok-followers-and-likes_GM835599320.pdfIn PDF document text
    • https://www.devries-group.de/images/robux-free-com_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/coin-master-computer-hack_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/www-bloxyworld-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/free-roblox-clothes-codes_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • https://www.devries-group.de/images/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/get-free-robux-generator_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F79 21708 bytes
SHA-256: 8efcf3547c280032d8bb39358467ee5f84236bfdd2e996b101738a01c59aedfb
font_01_sfnt_off00005f36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F36 18728 bytes
SHA-256: be82435374c523eca9e6840152b0e092911d48f973d5ac28450026d04588ec10

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