Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa9c01ebfbfa9343…

MALICIOUS

PDF

34.6 KB Created: 2021-06-27 17:32:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cebd2e523fd562b2f25450d252cf6bd0 SHA-1: 095eb959cbfa3afe3ab53fadda9b59b6d278420a SHA-256: fa9c01ebfbfa934395ef5c403b920b0f02b4e0a93a690dcff1a50478d8d28018
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators' for popular games. The primary lure URL is http://netcdn.co/app/431946152/roblox-dragon-ball-after-future-clicker-script-hack-game-hack, which is flagged as a malicious redirector. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful sites, likely to download further malware or engage in scams. No scripts were extracted, but the embedded URLs and heuristic firings strongly indicate a malicious redirector chain.

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/roblox-dragon-ball-after-future-clicker-script-hack-game-hack In PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/lots-of-robux_GM431946152.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/free-robux-cards-that-havent-been-used-yet_GM431946152.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/royal-high-school-roblox-how-to-get-free-mony_GM431946152.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/i-need-robux_GM431946152.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/free-gfx-roblox-2021_GM431946152.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/roblox-star-wars-hack_GM431946152.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/free-robux-games_GM431946152.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/free-pink-hair-in-roblox_GM431946152.pdfIn PDF document text
    • https://kupinapopust.mk/pub/img/userfiles/files/how-to-make-a-free-minecraft-account_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
font_00_sfnt_off00002eb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB2 22408 bytes
SHA-256: ab315c6ebaf35d77fc993260d21882d82300351c54842078af692dc0a75931c4
font_01_sfnt_off000060b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B1 19528 bytes
SHA-256: 2df45650dcaefd3babb7379f8388989c1d2e30d2032bb0be334b675531fa118d