Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1143807726ca992…

MALICIOUS

PDF

38.4 KB Created: 2021-05-20 23:48:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c52d5f685b22dd19eef3389ff84d9a0e SHA-1: ad4fa88666c02e9abc1dc4ff442d1c4fb759ea01 SHA-256: d1143807726ca992e56323100f54d0c3964c6f281fd4029c86b1c5cbad854fa3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised with lures related to game hacks and generators. The ML classifier also flagged the document as malicious. The embedded links likely lead to further malicious content or malware downloads, indicating a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7268

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-java-server-hosting-free-game-hack In PDF document text
    • http://bgnails.nl/images/coin-master-raid-hack_GM406889139.pdfIn PDF document text
    • http://bgnails.nl/images/free-robux-accounts_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/can-you-still-get-minecraft-windows-10-for-free_GM479516143.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003343.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3343 24380 bytes
SHA-256: 618bc4759815db0e449bfe45df488dc7f90ae707c2de7ffd4e10ba271888bc0d
font_01_sfnt_off00006af6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF6 2820 bytes
SHA-256: 96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689
font_02_sfnt_off00007497.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7497 18276 bytes
SHA-256: 5e44962821fb2565cfe95a9f549b7a0fbd0587c00345fc69eb3db563df392af4

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