Malicious PDF — malware analysis report

Static analysis result for SHA-256 2342d9eba75fc77f…

MALICIOUS

PDF

31.5 KB Created: 2021-07-19 06:31:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 50b536481d36212e65d37f2a55d956c8 SHA-1: 1a1b2941873685ae605c15e346e94412c80b9987 SHA-256: 2342d9eba75fc77fe9c89ada2220e94588e9e972dd1dc10451102d9f734c8138
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/479516143/free-minecraft-texture-packs-game-hack. The document body also contains a call to action to 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', further indicating a lure for potentially malicious content. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9893

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/free-minecraft-texture-packs-game-hack In PDF document text
    • http://fiur-malermeister.de/images/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://fiur-malermeister.de/images/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://fiur-malermeister.de/images/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://fiur-malermeister.de/images/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://fiur-malermeister.de/images/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://fiur-malermeister.de/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://fiur-malermeister.de/images/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://fiur-malermeister.de/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://fiur-malermeister.de/images/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://fiur-malermeister.de/images/hack-tiktok-fans-free_GM835599320.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_off00002a4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A4B 21544 bytes
SHA-256: d18c86fb4077c41a5e242b2cce82d0714ec63597860705bed1a031a647d2f717
font_01_sfnt_off0000591d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x591D 18240 bytes
SHA-256: f1e7a9ae3acfaa3d56f6a9afcdcc307065316a5e3d8814942fd3993c062bfaf5