Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c9b11125052600e…

MALICIOUS

PDF

38.2 KB Created: 2021-05-22 00:02:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4b445b744d164832df681ba492e83b75 SHA-1: 0074c50739d8eb5607c709b84675262a0ba87ffc SHA-256: 3c9b11125052600e517c2435003383a1442bf30f44dfbcf8dddfbda8e3e23357
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are associated with malicious redirector infrastructure, specifically promoting "game hacks" and free generators. The document body and heuristics indicate a lure designed to trick users into clicking these links. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

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-15-free-spin-link-of-last-5-days-game-hack In PDF document text
    • http://livsgnistans.se/images/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-hack-online-cheat_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_002_off00003819.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3819 25684 bytes
SHA-256: 623ffa67c40d1f2af42a1e073b2253d9224f476805fc1e67240aca667509c759
font_01_sfnt_off000072d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D5 18644 bytes
SHA-256: 4144dbe1534d0325d37e4c6129895ddb34a2bc26123e242025982d4ceef1bd2b

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