Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf866e80ada4e4e0…

MALICIOUS

PDF

34.6 KB Created: 2021-06-30 04:28:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 2df7cca2a15799ec00038847ceeb6ee2 SHA-1: 1b11e013ebaea601c83ed5cd6cc55eae5a540e17 SHA-256: cf866e80ada4e4e0e5b40e147be114b76448a0872b952545ea2ea00775a20549
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for game hacks and free generators, directing users to a known malicious redirector. The embedded URLs and the document body content strongly suggest a phishing attempt to lure users to malicious websites. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious redirection capabilities.

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-sunset-city-hack-game-hack In PDF document text
    • https://www.taline.hr/files/roblox-hack-scrip_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • https://www.taline.hr/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/coin-master-free-rewards-link_GM406889139.pdfIn PDF document text
    • https://www.taline.hr/files/tiktok-free-gift_GM835599320.pdfIn PDF document text
    • https://www.taline.hr/files/free-robux-no-human-verification-no-inspect_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.taline.hr/files/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • https://www.taline.hr/files/free-promo-robux-code_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • https://www.taline.hr/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://www.taline.hr/files/freer-pro-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://www.taline.hr/files/robux-claimer_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/roblox-cheat-2021-with-temp-files_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/roblox-glasses-free_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/cheat-tembus-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • https://www.taline.hr/files/free-robux-no-human-verification-or-survey-2021_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_off00002f89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F89 22492 bytes
SHA-256: a6c806ca7baf217353c4f06ac751d85cd6c39fa89e9cab9b4773bd5ececae23a
font_01_sfnt_off000061d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D7 19200 bytes
SHA-256: a9fda4ea45769f9015e46af357c793b9f081e2a0fef6723f04dd19a61fbf01df

Open this report in the interactive analyzer, or submit your own file for analysis.