Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c8c364d009863b6…

MALICIOUS

PDF

35.1 KB Created: 2021-07-05 00:46:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 77c7bed79e67c2867faaf22f03988e70 SHA-1: 3b35eff2d07425853bd3f04e03a819b3e045293d SHA-256: 8c8c364d009863b66d2198897a855608c8bf6231a3ba6f48e0a5a8243e5922d1
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.tw/app/406889139/hack-coin-master-without-verification-game-hack PDF link annotation
    • http://projectunionstreet.com/library/repository/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/hack-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-free-play_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-free-telechargement_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-hack-injection_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-games-hack_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-promo-codes-roblox-2021-june_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/20210-free-spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coinmaster-free-spins-link_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_002_off0000321b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x321B 22848 bytes
SHA-256: 4f77935080da4986cf19163a896eb0a795a12106f3332d2787cdc20f98f162c5
font_01_sfnt_off00006558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6558 18640 bytes
SHA-256: 559508295b341e167f22e0d2b3b81b0b04bdc2e4d78f98c2e91d6d027a190132

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