Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb45d1d878b04588…

MALICIOUS

PDF

34.8 KB Created: 2021-06-26 19:16:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 51012d979e27009a192f30650b871677 SHA-1: f5ca77bf3ca7bd8dd8afb8d8416f3bf787bd25fb SHA-256: cb45d1d878b0458803139c2e8e4dd4f404a2dd8eeecd751774b9662217729325
160 Risk Score

Malware Insights

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

This PDF document contains multiple links, including one pointing to a malicious redirector infrastructure associated with game hacks and cheats. The document body and embedded links suggest a lure to download potentially unwanted or malicious software. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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/pastebin-headless-horseman-free-roblox-game-hack In PDF document text
    • https://www.cinemapalace.ro/trailer/files/roblox-highschool-hack_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/best-roblox-jailbreak-hack-2021-mod-menu-level-5_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/how-to-get-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/coin-master-500-free-spins_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/roblox-hack-2021-robux-download_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/try-minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/mcpe-download_GM479516143.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/roblox-studio-free-app_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/robux-online_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/coin-master-free-coins-spins_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/www-coinmaster_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/com-roblox_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_off00002ffd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FFD 22468 bytes
SHA-256: f7bdcf1ce5674996a324faaef62207974a60d87b10215aaeb89c9592c8561e90
font_01_sfnt_off000061df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61DF 19460 bytes
SHA-256: dbc37385b791204c1f10a51ebf36657db42f7fad28a1b9221d96b55e2736e12f