Malicious PDF — malware analysis report

Static analysis result for SHA-256 84fbb87564661a65…

MALICIOUS

PDF

33.6 KB Created: 2021-06-28 06:45:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 88ab0f37b7b22084fdcc0c0eeb6a3595 SHA-1: 1e23710ba683e9bac8897b7bae040f0e57f42efd SHA-256: 84fbb87564661a65b5872cdc4829a7a19eda8058b9d01b9cb9bb0adf0948b02b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, 'Get Me Free Robux Now', designed to trick users into clicking. The primary link redirects to malicious infrastructure known for distributing unwanted or malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or redirection attack.

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/get-me-free-robux-now-game-hack In PDF document text
    • https://www.tena-g.hr/files/roblox-murder-mystery-2-cheat_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/como-descargarse-hacks-en-roblox-jailbreak-agosto-2021_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/old-roblox-accounts-for-free_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • https://tena-g.hr/files/free-robux-discord_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/make-free-robux_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-roblox-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/legit-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/free-level-7-exploits-2021-roblox_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-master-free-spin-and-coins-links_GM406889139.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_off00002d6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D6E 21928 bytes
SHA-256: 4939fd1bca8849cefa352a21ec91b9daefb6fb9e9856668c708f71e3bbf65b06
font_01_sfnt_off00005ddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DDB 19180 bytes
SHA-256: f836723eee857073e4f74e5de126249e92735a00fe0103b8f50ce19afec4c3f4

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