Malicious PDF — malware analysis report

Static analysis result for SHA-256 2afea11b7891a30f…

MALICIOUS

PDF

42.6 KB Created: 2021-05-15 05:06:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 19dddc32d47b4963ff83d4aa428c8cdb SHA-1: acef5bc471b23c021679117357d1dd6ee5a44223 SHA-256: 2afea11b7891a30f9df59c578f3f7fa0bae7677f90325a24339668765109f392
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free spins. The primary link, https://netcdn.xyz/app/406889139/coin-master-daily-free-spins-link-today-game-hack, is identified as a malicious redirector. The document's content and embedded links strongly suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-daily-free-spins-link-today-game-hack In PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-card-link-coin-master_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/try-minecraft-free_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-jackpot-madness-hack_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-gifts-coin-master_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-free-spin-link-today-download_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-bonus_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-cheat-client_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-roblox-clothes-boy_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/card-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/hack-to-get-free-spins-on-coin-master_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_off000049ea.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49EA 24972 bytes
SHA-256: 41b6873a3fc71ad59d7d5841bfca83d66cae3424edc5cbcbd33ce1db87dfc301
font_01_sfnt_off000082e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82E9 18652 bytes
SHA-256: b7acebacf47409c7f0f2932ba41e4c1dc120b4ef5280387cf9333091bd47b2e0

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