Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c3419e18f430455…

MALICIOUS

PDF

42.4 KB Created: 2021-05-11 02:31:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: bd57ddd34043407f43f277607477c1a8 SHA-1: 15e759cf4216bee83a741df28befc1d3e8dd3466 SHA-256: 7c3419e18f4304559c6ace49c1d3167783606322ff6c60ca0f6b670bd40f75a2
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/431946152/free-robux-site-game-hack PDF link annotation
    • https://www.arquetopia.org/images/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/mcpe-com_GM479516143.pdfIn PDF document text
    • https://www.arquetopia.org/images/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/roblox-printables-free_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/wurst-download_GM479516143.pdfIn PDF document text
    • https://www.arquetopia.org/images/coin-master-links-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/login-robux_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/free-spins-and-coins-for-coin-master-game_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_off0000492f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x492F 26412 bytes
SHA-256: db8452aa0f7d01c974888fff29edca6a8e2740054733cb90d171ad0b9c1fdb64
font_01_sfnt_off00008371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8371 18236 bytes
SHA-256: d17cd47be652198dd65b1182653c5b68eec39c9a25c2fe205f68dda680ae7be3

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