Malicious PDF — malware analysis report

Static analysis result for SHA-256 7abbd786f639cfb6…

MALICIOUS

PDF

40.3 KB Created: 2021-05-14 10:45:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1c9d4ec49934677250282f53966a699b SHA-1: e32ca64f1896644c42561817424c3336d187f400 SHA-256: 7abbd786f639cfb6841c75cb508cb09bf742317b8bb3a4e1a68f58c6c14c0c0c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free generators' or 'hacks' for popular games like Coin Master and Roblox. The primary malicious URL identified is https://netcdn.xyz/app/406889139/http-appsmob-info-coin-master-hack-game-hack. This indicates a social engineering tactic to trick users into visiting potentially harmful sites, likely for credential harvesting or further malware delivery.

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/406889139/http-appsmob-info-coin-master-hack-game-hack In PDF document text
    • https://brainpads.com/images/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://www.brainpads.com/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://brainpads.com/images/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • https://brainpads.com/images/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://www.brainpads.com/images/robux-free-online_GM431946152.pdfIn PDF document text
    • https://www.brainpads.com/images/minecraft-net-free_GM479516143.pdfIn PDF document text
    • https://www.brainpads.com/images/minecraft-bedrock-client_GM479516143.pdfIn PDF document text
    • https://brainpads.com/images/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
    • https://www.brainpads.com/images/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • https://www.brainpads.com/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://brainpads.com/images/coin-master-free-spins-link-2021-blogger_GM406889139.pdfIn PDF document text
    • https://www.brainpads.com/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://brainpads.com/images/daily-free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://brainpads.com/images/minecraft-bedrock-edition-hacks_GM479516143.pdfIn PDF document text
    • https://brainpads.com/images/how-to-add-mods-to-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://brainpads.com/images/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • https://www.brainpads.com/images/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • https://brainpads.com/images/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • https://brainpads.com/images/coin-master-cards-hack-2021_GM406889139.pdfIn PDF document text
    • https://brainpads.com/images/grabpoints-robux_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_off000045d5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45D5 23556 bytes
SHA-256: d3ed8c00eaeaa32bcce741fd988138a969e4c6bbe1e5077d507edff79d0f93f5
font_01_sfnt_off00007b00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B00 18308 bytes
SHA-256: 0953d93c21b53bfb1f31fa823a9d7d14e5862c498b99c1777eb7f5d92d60cab0

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