Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7302b2a6e575458…

MALICIOUS

PDF

34.4 KB Created: 2021-06-30 08:01:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 566c80aea63986e69463f26c2286bdaf SHA-1: 232654b7b7247f4deb5ec9a83212412e36d5b830 SHA-256: d7302b2a6e575458b715c83414cc517da69483b63032940cac1e6438769bfc94
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure of game hacks and free currency to entice users to click on embedded links. These links lead to malicious redirectors that serve further malicious PDF files, indicating a multi-stage download and execution attack. The ML classifier strongly supports the malicious nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-hack-base-wars-roblox-2021-game-hack In PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/free-coin-master-cards-link_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/who-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/free-robux-now_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/roblox-free-bundles_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/reddit-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/free-vips-server-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/coin-master-tricks_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/free-stuff-on-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/free-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/coin-master-free-spain_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/coin-master-strategy_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/free-cool-boy-hair-roblox_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_off000030f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F8 21548 bytes
SHA-256: ae277188b7ab3d32bef1d0950f7b3df1066f9820831daf700d680e0975315f6a
font_01_sfnt_off00006019.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6019 19420 bytes
SHA-256: 49e7ab238302be537c2160211c565188ec83c4eab1e2e6fa06336ed0fce18745

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