Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9a8726d5be83eb5…

MALICIOUS

PDF

34.7 KB Created: 2021-06-20 07:30:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a79fa23d3b00cba4faf345144a7c19dd SHA-1: dc9876c14c8c00e2ce26aa95a66b227ac99ea93e SHA-256: a9a8726d5be83eb57bde870d2038a6c886b06b0253b25fe2e04ca62b5a718b55
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/how-to-speed-hack-roblox-booga-booga-game-hack PDF link annotation
    • http://daskrimti-jabar.web.id/library/repository/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/moon-active_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-roblox-gfx_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-hacks-for-gold-cards_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-unlimited-money-hack-mad-city-script_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-hack-cbro-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/oprewards-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-free-spin-today-2021_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/get-coin-master-hack_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
font_00_sfnt_off00003190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3190 21916 bytes
SHA-256: 9b56f51c1652a2de8bb3acdcffe67c883a8d668469d6322669ccb2ffab7abeaa
font_01_sfnt_off000061f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F4 19168 bytes
SHA-256: af70c80066ec87597b63d0b3679d128166e3d56f3db96a52e4c2028e187b094c

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