Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae70c9d5d53e5b21…

MALICIOUS

PDF

38.5 KB Created: 2021-05-22 23:38:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c4e77973f1f9db67cba9df7ca89ba65f SHA-1: e0cf7dcf1fdfaaff30d3d1ab0497d97b358bab07 SHA-256: ae70c9d5d53e5b21050e1f3060e024f7998bf7085cf1d73a76f08f526e3dd403
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector domains, including one that masquerades as a 'free generator / game hack'. The document body explicitly mentions 'Minecraft Games To Play For Free' and includes a call to action 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the lure. The presence of embedded URLs and the ML classifier's flagging indicate malicious intent, likely to lead the user to download further malware or engage in phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/minecraft-games-to-play-for-free-game-hack In PDF document text
    • http://astdubai.co/userfiles/files/coin-master-hack-download_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-op-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003323.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3323 24936 bytes
SHA-256: d4d7b9b32058b766ec365cfda039cfc573aa1722c1cab888afcde5735a184c62
font_01_sfnt_off00006b1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B1C 2856 bytes
SHA-256: 8c5d9bcb386d88c7f99323d8d482e46ea21dea038a5b842744dd5d39b26b2c44
font_02_sfnt_off000074f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74F3 18380 bytes
SHA-256: e4e6021f190597b5ba2cc648d82e873dd3d7a425745f666e69b81b8efe23a832

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