Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3b2c7f63e5e9ce0…

MALICIOUS

PDF

45.8 KB Created: 2021-06-03 12:00:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3f227796f5dbae4c7ba3cc61c491a822 SHA-1: b3890ac728294cb5de9c5b30468e818a2e444ce9 SHA-256: e3b2c7f63e5e9ce0624a1ac32efc82e530f73d8bdad5021c9d59620a96a36cc7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including one identified as a malicious redirector. The document body text and heuristic firings indicate a lure related to game hacks and account access, suggesting the intent is to redirect users to potentially malicious content or phishing sites. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/431946152/how-to-hack-peoples-roblox-accounts-game-hack In PDF document text
    • http://lib.mbp.ac.id/repository/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/moon-active_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/where-to-get-robux_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/robux-come_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/minecraft-pe-mod-menu_GM479516143.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_004_off00005233.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5233 26640 bytes
SHA-256: 1e2ed3ac425ec12b24fe3ff0b6f0477037bdd11ae57c098d3432d37872350640
font_01_sfnt_off00008e81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E81 18920 bytes
SHA-256: cd7407ef9aef6c4c50b1fdf01e763fd2e22944ade267215dee183f168e7b87f5

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