Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d50dd1cf1ffb209…

MALICIOUS

PDF

36.1 KB Created: 2021-05-23 03:04:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e82fc04a34d9c2b72dea95239566457a SHA-1: a6e85e259b61197cf3bc7a96a2f7b3b427e734c6 SHA-256: 2d50dd1cf1ffb20902973815c85e4d7abf472dae015e1a0a5cd7388e2898e64d
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks and generators. The document body explicitly contains a call to action, 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', and embedded URLs point to potentially malicious content. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/free-minecraft-server-maker-game-hack In PDF document text
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/minecraft-18-9-hacked-client_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
stream_002_off00003533.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3533 24976 bytes
SHA-256: e18ec5a660397dbfaf4edc82e3f65619ea886b3f6ed256cb90209de87bf7ab6c
font_01_sfnt_off00006d1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D1B 17852 bytes
SHA-256: a2113846211f941d41962086a33418b46c13efddcea93467eebdb757cad7d920

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