Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0a7ff2147586e05…

MALICIOUS

PDF

42.5 KB Created: 2021-05-17 13:05:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 19648bdcb6d682b5d812b1124e905619 SHA-1: 15825f9b2ca2720660487f11036bbc81d4206445 SHA-256: f0a7ff2147586e05b149556fc5734e9d84fb31979591e8cbe05e9b73ed3817eb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-confidence heuristic indicating it links to a game hack lure, specifically mentioning 'Coin Master'. The embedded URL directs to a suspicious domain that likely hosts malicious content or redirects to further phishing pages. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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-firebird-card-free-game-hack PDF link annotation
    • http://eleveurs-autrement.fr/images/free-roblox-toys_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/roblox-lovenet_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/online-coin-master-free-spin-app_GM406889139.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/free-spins-in-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/free-game-pack-with-google-play-coin-master_GM406889139.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/coin-master-spin-and-coins-free_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_off00004c58.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C58 24572 bytes
SHA-256: d08f626036c4059dfce72a110541f62b3ab24fb6cc100065fe33dd63c7bf85ba
font_01_sfnt_off0000849c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849C 18044 bytes
SHA-256: ef563ee888471be2e7de1f4e56dc736aa6d19b3e21b6f3e80ee32cc0c21e6a46

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