Malicious PDF — malware analysis report

Static analysis result for SHA-256 3129260c9f4d3b93…

MALICIOUS

PDF

37.7 KB Created: 2021-05-21 11:02:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b1ab5a6d3030e370b02ddb2b0d3f92e0 SHA-1: 238c2ac494dc4118b52cfd595ccdaa6c7d5dc839 SHA-256: 3129260c9f4d3b93a07858ace688f8995ea30f079ec89c4526d1110f4ca41ddf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to known malicious redirector infrastructure, specifically advertising 'free generators' or 'game hacks' for popular games. The ML classifier also flagged this PDF as malicious. While no scripts were directly extracted, the embedded links suggest an attempt to redirect the user to download a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/master-coin-free-link-game-hack In PDF document text
    • https://elite-house.su/images/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://elite-house.su/images/daily-free-coin-and-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elite-house.su/images/games-like-minecraft-but-free_GM479516143.pdfIn PDF document text
    • https://elite-house.su/images/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032c5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32C5 28928 bytes
SHA-256: e60eeac081753c9c7b786440f3ec6dda2c311e9958ffcc3eee0e81a8bc5b3187
font_01_sfnt_off0000739f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x739F 17880 bytes
SHA-256: f325bc51a5f33ec2ea6c889aa635c0e4104002a1859551a05fb0fcec2a10294b

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