Malicious PDF — malware analysis report

Static analysis result for SHA-256 dabfe5b7c7ba45ba…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 05:24:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4f2bc729356e6ace7027e7947529c219 SHA-1: 174801b6166596626b1c2df02cee616ff91199f3 SHA-256: dabfe5b7c7ba45ba5e2988658e08326827838d14c8faf07e2bfad380854cfbf9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free Robux or game hacks, directing users to a malicious redirector URL. This is a common social engineering tactic to trick users into visiting potentially harmful sites. The ML classifier strongly indicated maliciousness, and the embedded URL is associated with known malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.tw/app/431946152/free-robux-no-human-verification-generator-game-hack In PDF document text
    • https://c2o-library.net/catalog/repository/howto-hack-gear-in-the-roblox-catalog_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-200-robux_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/minecraft-font-free_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-gift-card-free-no-human-very-or-survey-youtube_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/2021-no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-event-hack_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-kick-a-hacker-in-a-server-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/all-links-for-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-profile-picture-free-to-use_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/strucid-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-work-at-a-pizza-place-cheats-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-free-models_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/back-to-hack-roblox-id_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/bebe-rexha-i-got-you-cheat-codes-remix-roblox-id_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-shinobi-story-cheat-script_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-best-hack_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-of-free_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
font_00_sfnt_off00002fee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FEE 22472 bytes
SHA-256: 24fea35c7738af17822aff4579769815409c5dfaf07cacd7990f6450aa1cfb96
font_01_sfnt_off000061e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E3 19336 bytes
SHA-256: 7dda9f1c66f8ad938334bacfca0b21453aa6b405ce0ba8c60d4a58d10419e0cd

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