Malicious PDF — malware analysis report

Static analysis result for SHA-256 72c96be8d5c81f41…

MALICIOUS

PDF

43.3 KB Created: 2021-05-13 03:09:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 6810d6680ca94e4b0c8e862f7c2edbc3 SHA-1: 216c822b1f7b8540eb8f61ff34165b40ba534c18 SHA-256: 72c96be8d5c81f413aaafa9bc9ef344bc062b23155deb804fed45ac4846cfa1e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as free game hacks or generators. The primary redirector URL is https://netcdn.xyz/app/479516143/minecraft-gun-mod-download-free-game-hack, which likely serves as a landing page for further malicious content or exploits. The presence of a visual download button and the overall lure suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/479516143/minecraft-gun-mod-download-free-game-hack In PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-bedrock-edition-pc-free_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-free-spins-and-cards_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-daily-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-tool-hack_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-pet-food-for-coin-master_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-play-now-for-free_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/my-roblox-account-was-hacked_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
    • https://youtuIn PDF document text
    • https://discord.ggIn 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_off00004da5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DA5 25492 bytes
SHA-256: 62bb444152d899cdf07556bc532a8641f080cbc0a91937a45687d5c0cb95c1bd
font_01_sfnt_off000086a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86A9 18428 bytes
SHA-256: a1a6f3ae66b5d922a0a4092004751a3e9c0d20fb317db8442b8cbfc32d6436e9

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