Malicious PDF — malware analysis report

Static analysis result for SHA-256 c82a0124599e8a87…

MALICIOUS

PDF

34.1 KB Created: 2021-06-19 13:50:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 673389fcb1e4edeb78ec4ad9a8eee816 SHA-1: a4467a662ed30639b64bebf5c909970ea15e0aa4 SHA-256: c82a0124599e8a87a8ad01852fc60108463db97fa3f84f1a2e7d8ca9d9085407
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to a lure for game hacks and cheats. The embedded URL, http://netcdn.co/app/431946152/pokemon-galaxy-cheats-roblox-game-hack, is identified as malicious infrastructure. The document body, though partially garbled, reinforces the lure by mentioning 'Pokemon Galaxy Cheats Roblox' and includes the same malicious URL. This suggests a phishing attempt to redirect users to a potentially harmful site.

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.co/app/431946152/pokemon-galaxy-cheats-roblox-game-hack In PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/how-to-make-a-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/what-is-wurst_GM479516143.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-free-coins-cheat_GM406889139.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/free-headless-horseman-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/how-to-get-free-robux-without-human-verification-on-pc_GM431946152.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/ways-to-get-free-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
font_00_sfnt_off00003125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3125 21100 bytes
SHA-256: 75c6de511f399aeee4e90b3400b384a612b5b33deeb280d4cc87e1c34e8ec301
font_01_sfnt_off00005eff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFF 19520 bytes
SHA-256: 2172bd08ec6c49848c5949f3f020206670e4c4d53a3501f1c6232b6bcccf77a7

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