Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a371e9f27b48b7e…

MALICIOUS

PDF

36.5 KB Created: 2021-05-23 19:35:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7b89efc78084d56d167cc4d2f8a77f4d SHA-1: 5583de611f6aba7ce050d5d8941062127380ee59 SHA-256: 1a371e9f27b48b7e71ca1cc5174a6c2c2ca8ddacc8824209f65926b2c2786013
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF contains embedded JavaScript and links to known malicious redirector infrastructure, specifically disguised as a "free generator / game hack" lure. The embedded JavaScript likely facilitates the redirection or execution of a second-stage payload upon user interaction. The document body and heuristics strongly suggest a phishing or scam attempt designed to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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-games-free-download-game-hack In PDF document text
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/pubg-uc-download_GM1330123889.pdfIn PDF document text
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/how-to-get-a-refund-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/coin-master-free-spin-bonus_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000034a4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34A4 24432 bytes
SHA-256: 2d01269cffa52b26d22697722768090cc4d67adccfd5ede71b600563e1896b6c
font_01_sfnt_off00006cb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB8 18548 bytes
SHA-256: ca1316f27781c6024a610b7b161693a7a162d40ad3e3bb281154e4fcfa7f8f80