Malicious PDF — malware analysis report

Static analysis result for SHA-256 216ddda70e4ff474…

MALICIOUS

PDF

43.0 KB Created: 2021-05-17 14:50:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: cae5aec2a7ca42c89f95a1b487b5d90f SHA-1: ab4bc9f385c94439e80ef96585816d9f0209361e SHA-256: 216ddda70e4ff474078f2949e048cb8e924be4f35c75fff73f60861ddc4ceab9
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-2021-spin-link-game-hack PDF link annotation
    • https://masseymotorcars.com/images/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://masseymotorcars.com/images/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://masseymotorcars.com/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://masseymotorcars.com/images/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • https://masseymotorcars.com/images/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • https://masseymotorcars.com/images/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://masseymotorcars.com/images/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://masseymotorcars.com/images/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://masseymotorcars.com/images/hack-robux_GM431946152.pdfIn PDF document text
    • https://masseymotorcars.com/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://masseymotorcars.com/images/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://masseymotorcars.com/images/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
    • https://masseymotorcars.com/images/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://masseymotorcars.com/images/hack-coin-master-net_GM406889139.pdfIn PDF document text
    • https://masseymotorcars.com/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://masseymotorcars.com/images/free-robux-app_GM431946152.pdfIn PDF document text
    • https://masseymotorcars.com/images/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • https://masseymotorcars.com/images/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
    • https://masseymotorcars.com/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://masseymotorcars.com/images/free-spins-for-coin-master-2021_GM406889139.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
stream_003_off00004bb6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BB6 24952 bytes
SHA-256: 0d664c2de7e9a11de842b38a814d26ff0cd054a18b3ec67ab377efa4b8a1db68
font_01_sfnt_off00008513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8513 18456 bytes
SHA-256: b7ae3d16bb028351929840db057611194e7c02105e6dbd3e36d0326cc4cd0414

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