Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c2eb76c2ad3894f…

MALICIOUS

PDF

44.9 KB Created: 2021-06-03 22:15:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 72651ed2205a220d5d88e2c0dafc5373 SHA-1: b3d175bb987a76dcd0cfca0d29c988639e035002 SHA-256: 8c2eb76c2ad3894f43f05c4646c5796d2992353f0dc61fe0078cf55513c9159c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting "free generator / game hack" lures. The presence of multiple links to similar scam-related content suggests a phishing or social engineering attempt to trick users into visiting potentially harmful sites. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a malicious intent to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/is-java-minecraft-free-game-hack In PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-roblox-wings_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-hack-mod-apk-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/minecraft-free-install_GM479516143.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-spin-and-win-coin-master_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/optifine-pe_GM479516143.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-free-spin-and-coin-link-2021-today_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-hack-without-verification-ios_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/roblox-login-hack_GM431946152.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_004_off000053a4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53A4 25776 bytes
SHA-256: ce74fc1cb3d70dc903d27faa7c0bafd7572ad42b67b23cb95769f487360163ce
font_01_sfnt_off00008e81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E81 17848 bytes
SHA-256: 2812ffd3b6569d14fce824048316eedc6e3758fbb22d1025bbcec1b053185b7d

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