Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2b0451c9cbdc6dd…

MALICIOUS

PDF

43.9 KB Created: 2021-05-11 12:37:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1ba4ccbcd05ad2b17c01f5a5a40fe852 SHA-1: 2c585910789b7512f04199d8ebfa16abf6886707 SHA-256: c2b0451c9cbdc6ddd1cc65d26df7c79b3cd8766c08a48cef6f305d0b35e5bf39
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of game hacks and free in-game currency. The ML classifier also flagged this PDF as malicious. The embedded links likely lead to further malicious content or phishing pages, indicating a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-online-hack-game-hack In PDF document text
    • http://alexanderautos.co/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://alexanderautos.co/images/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://alexanderautos.co/images/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • http://alexanderautos.co/images/coin-master-cards-free_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/cute-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://alexanderautos.co/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://alexanderautos.co/images/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://alexanderautos.co/images/free-robux-games_GM431946152.pdfIn PDF document text
    • http://alexanderautos.co/images/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://alexanderautos.co/images/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://alexanderautos.co/images/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://alexanderautos.co/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://alexanderautos.co/images/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://alexanderautos.co/images/coin-master-hack-org_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/online-coin-master-hack-here_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_003_off00004cf8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CF8 26696 bytes
SHA-256: ed9b4ade6e3459bc8a24f60a3bdf5640dc992ddd1f8005b8fea71d24437b1157
font_01_sfnt_off00008ab3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB3 17788 bytes
SHA-256: dd7a4057587595e78019333ccc667320d6d804c022730983449509c018bf4689

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