Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dcf3a1a05992cf9…

MALICIOUS

PDF

36.6 KB Created: 2021-05-20 14:09:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-30
MD5: fc0ef44bf9e79cea42751c7b52420d6b SHA-1: bf7e2ecaa87d679a1d7d3a2d5b751b1ec76154ad SHA-256: 1dcf3a1a05992cf9ca8ef16f1af75eea752f66cc5ca2fdc7c0a2d3bcaa0def28
200 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/431946152/free-robux-link-game-hack In PDF document text
    • http://baxtton.com/sites/default/files/files/free-diamonds-coin-master_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/roblox-hair-for-free_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/roblox-c9m_GM431946152.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_off00003142.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3142 26124 bytes
SHA-256: a5078333c6d43dd0ecb5142d543cf6359977ab3b89e2108106f5d30ec8b572cd
font_01_sfnt_off00006dfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DFD 18304 bytes
SHA-256: a4aae99c46e0a0f586669c3aecb8c0d6e5f23962dc49b2f1654f133382ac5317

Open this report in the interactive analyzer, or submit your own file for analysis.