Malicious PDF — malware analysis report

Static analysis result for SHA-256 84b8b9612ee13260…

MALICIOUS

PDF

41.2 KB Created: 2021-05-20 00:00:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3f53ad78fad047e3e16c5791667e5d5d SHA-1: 084819818941f00ea2e66605b3185a09704bd35f SHA-256: 84b8b9612ee132600b79b063e7b83cecc58809e5c63be32bfef984cd13b78f9e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and free currency, directing users to malicious redirector links. The primary malicious link identified is https://netcdn.xyz/app/1094591345/pokemon-go-free-install-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at driving traffic to potentially malicious sites, likely for malware distribution or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/1094591345/pokemon-go-free-install-game-hack In PDF document text
    • http://ff-obertraun.at/images/coin-master-free-account_GM406889139.pdfIn PDF document text
    • http://ff-obertraun.at/images/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://ff-obertraun.at/images/coin-master-hack-link_GM406889139.pdfIn PDF document text
    • http://ff-obertraun.at/images/how-to-get-100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ff-obertraun.at/images/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • http://ff-obertraun.at/images/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ff-obertraun.at/images/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://ff-obertraun.at/images/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://ff-obertraun.at/images/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
    • http://ff-obertraun.at/images/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • http://ff-obertraun.at/images/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://ff-obertraun.at/images/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • http://ff-obertraun.at/images/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://ff-obertraun.at/images/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://ff-obertraun.at/images/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • http://ff-obertraun.at/images/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://ff-obertraun.at/images/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://ff-obertraun.at/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://ff-obertraun.at/images/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://ff-obertraun.at/images/free-robux-easy-and-fast_GM431946152.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_003_off00004798.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4798 24216 bytes
SHA-256: d868f6ecead54399503bd532bc540f9bd5eaf32ee9591efe8147eefc8a82826f
font_01_sfnt_off00007eea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EEA 18248 bytes
SHA-256: 220e9299b27b60949a7cc9bf7893284df140725ba1b267f19c0ff6b77b753957

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