Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e2bac07def2f774…

MALICIOUS

PDF

47.1 KB Created: 2021-06-13 16:49:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 97ad9884dd9bf1c437be92c5a36be2cc SHA-1: deb542f400079be3ae7dd21016570c4e7798185f SHA-256: 3e2bac07def2f774af20939703a47a413df9a132e98241ffdd54f9aecf138080
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a critical heuristic firing for a game hack lure, directing users to a known malicious redirector. The document body, though partially corrupted, contains text related to 'free Roblox accounts' and a URL that aligns with the heuristic findings. This suggests the PDF is designed to trick users into visiting a malicious site, likely to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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 http://netcdn.co/app/431946152/free-roblox-accounts-with-robux-2021-october-game-hack In PDF document text
    • https://repository.stikesindramayu.ac.id/repository/roblox-hack-game_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/is-roblox-hacked_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-free-spin-daily-bonus_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-25-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-free-spins-uk_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/cheat-engine-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-promo-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/tiktok-free-10k-followers_GM835599320.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
font_00_sfnt_off0000537c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x537C 28844 bytes
SHA-256: a5d2ee4dca9c5b6a34f6c217fec5761adc959908c221a48634c22cf72b022d79
font_01_sfnt_off00009365.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9365 19076 bytes
SHA-256: fc08097fe3bc022546a92e481e901de28401573895453d40def599665305bdc7

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