Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b97c87257da2333…

MALICIOUS

PDF

33.5 KB Created: 2021-06-19 06:15:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 425f95481dd835b1e299e260346dc49b SHA-1: d8aa262ed6853230dd5d37a3b260c7434da81ca2 SHA-256: 1b97c87257da23337fd380455a1250ab0346fe14715f9cf7f39e921707682881
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of free game hacks and accounts. The document body and embedded URLs suggest a phishing or scam attempt to trick users into visiting malicious sites. The primary attack vector is likely spearphishing attachment, leading to further malicious content.

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/free-unused-noob-roblox-accounts-game-hack In PDF document text
    • http://magnipsor.su/images/robux-2021_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/minecraft-free-download-laptop_GM479516143.pdfIn PDF document text
    • http://magnipsor.su/images/one-piece-millenium-roblox-found-a-hacki-book_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-hacks-reddit_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/roblox-codes-cheats_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-hack-download_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/best-free-roblox-skin_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/hack-robux-ilimit_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/roblox-patched-hacks_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • http://magnipsor.su/images/how-to-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-cheat-apk-free-download_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/pig-master-free-coins-and-spins_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_off00002b3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B3E 22592 bytes
SHA-256: 76aed8f1f8152153ea9b5849eda5541a6c03a83426062fb68da1b0a61c9a87e7
font_01_sfnt_off00005d9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D9D 19068 bytes
SHA-256: 0eab947221e2f1c3f44f97c38e0005a03a53402b4d3f3d3dcdd9fe2f35f477b2

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