Malicious PDF — malware analysis report

Static analysis result for SHA-256 50f131a1ea77fad5…

MALICIOUS

PDF

32.4 KB Created: 2021-07-19 03:31:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e4a739bb8e3e7ff8249fe074ac06e4c5 SHA-1: dcc60095907bdf26518ec2cea8fce41cb40b5b5e SHA-256: 50f131a1ea77fad59e03e5fbfbb9c844c906a2f9a615c33826d8a09736536679
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'free game hacks' and generators. The document body explicitly contains the URL http://netcdn.tw/app/479516143/how-to-get-minecraft-java-edition-for-free-game-hack, which is flagged as a malicious redirector. The presence of embedded URLs and the lure of free items suggest a phishing or scam attempt, likely to deliver further malware or steal credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9895

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 http://netcdn.tw/app/479516143/how-to-get-minecraft-java-edition-for-free-game-hack In PDF document text
    • http://verenacrow.at/images/free-tiktok-likes-app_GM835599320.pdfIn PDF document text
    • http://verenacrow.at/images/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://verenacrow.at/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://verenacrow.at/images/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • http://verenacrow.at/images/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://verenacrow.at/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://verenacrow.at/images/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://verenacrow.at/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://verenacrow.at/images/minecraft-realms-free-trial_GM479516143.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
font_00_sfnt_off00002bb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB3 22140 bytes
SHA-256: 2c150d39cba06e0203cec93de2c6691687a3a267eb4092a0a1bc55f6d48a91ca
font_01_sfnt_off00005c87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C87 18328 bytes
SHA-256: a790f51109e75a7469d42ca78e2bb2ee6ca1fa0985c1c579ea7802a52011e373