Malicious PDF — malware analysis report

Static analysis result for SHA-256 b80e0029fc4dd26a…

MALICIOUS

PDF

35.0 KB Created: 2021-05-23 05:03:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d21b01a4513d0f3260a8208e29a542e3 SHA-1: 12a0098ad1746452755089ade820fa2cc662976b SHA-256: b80e0029fc4dd26a5d0caa51e39c994788d8cff5d345e049fb17ca3ad684428c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including a known malicious redirector, disguised as game hacks and generators. The document body and embedded links suggest a lure to download further content. The ML classifier also flagged this PDF as malicious, indicating a high probability of malicious intent.

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/406889139/coin-master-free-spins-app-game-hack In PDF document text
    • http://ukrainiansofbuffalo.com/images/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
    • http://ukrainiansofbuffalo.com/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ukrainiansofbuffalo.com/images/roblox-how-to-get-free-clothes_GM431946152.pdfIn PDF document text
    • http://ukrainiansofbuffalo.com/images/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://ukrainiansofbuffalo.com/images/coin-master-free-spins-for-today_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_off00003172.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3172 24152 bytes
SHA-256: 9118250bfe25882539cbb869fee5c7a31226a15094ede7c78c1feb717e0b3bf6
font_01_sfnt_off0000686e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x686E 17884 bytes
SHA-256: 21af4872a04c62c178ac31651a333ecdcea5bb1ed4ceeeef1956d42e8fc37ea8

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