Malicious PDF — malware analysis report

Static analysis result for SHA-256 44599922717b223c…

MALICIOUS

PDF

33.3 KB Created: 2021-06-30 09:12:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-10
MD5: dc646d8e6060af78c549ff36b6559d4e SHA-1: 82f4c0e130d1012711017c6607f5c1334c3cb9b6 SHA-256: 44599922717b223cd3c51aacc1d00ed33b6d2c2b52d8a5242e1533c71ce47b9a
220 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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-red-boy-hack-download-game-hack In PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/animation-free-of-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/free-kid-games-online-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/hacker-fly-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/how-to-hack-your-friend-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/coin-master-34-4-hack_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/free-robux-codes-may-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/free-robux-promo-codes-2021-may_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/hack-tool-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/minecraft-pe-free-download-ios_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-groups-that-give-away-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-hack-tool-robux-and-tix_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_off00002b45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B45 22124 bytes
SHA-256: 930430e996b82f475126354311348e5a8dc691deb549f5dbbb8278d780e87804
font_01_sfnt_off00005c3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C3D 19344 bytes
SHA-256: be6a335674105e54b1270e8529d201b4e83260868a17c7cf861892815f355cee