Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5b9a485451551c1…

MALICIOUS

PDF

44.1 KB Created: 2021-05-22 22:11:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 60273bafc43baba6e86a39ecb49cd3a0 SHA-1: 44dd29d11d80d971fbd4fb5d5028bbdf22f8369a SHA-256: a5b9a485451551c1bdac1d71770f7d0ad200faa4035644091bf521f0a0b6675f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded URLs and a call-to-action phrase, indicating a phishing or scam attempt. The primary lure, 'Minecraft Free Game Hack', redirects to the malicious URL https://netcdn.xyz/app/479516143/minecraft-free-game-hack. The presence of multiple PDF-specific heuristics related to malicious redirectors and lures strongly suggests a malicious intent to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7947

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-free-game-hack In PDF document text
    • http://only1you.ru/images/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/master-free-spin-and-coin-links-html-m-1_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/free-spins-coin-master-site-wwwquoracom_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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000030a8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30A8 23384 bytes
SHA-256: 6c35a55c2a00b180a7540cbcb7c5541ef08d7547439de8656eb014ec962d8042
font_01_sfnt_off00006588.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6588 7936 bytes
SHA-256: 218d53b68bdddb064f6fba4be822d5b3725ed1cef1a3b42796a8dd99c4a62f4e
font_02_sfnt_off00007eb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB1 4232 bytes
SHA-256: ab6320ab342704d2c5943abfba82ed4837bf2da871c91621741fd4cfd15c6ed5
font_03_sfnt_off00008d3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D3D 17568 bytes
SHA-256: 2778e064ee8e4e3a4bd3984a17bb7eaaeefaa41a67eb131b8ade69fe1653bbfc

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