Malicious PDF — malware analysis report

Static analysis result for SHA-256 96df8d9aa2be94b4…

MALICIOUS

PDF

35.5 KB Created: 2021-06-23 02:00:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: e310491e3349805e310572345c5abd30 SHA-1: 788ebc4e0012c27c85e3ea547ca5ff905cbbc317 SHA-256: 96df8d9aa2be94b4c247cfaf208738c0f299e15ef0d9c6cb6dd443146b1a522c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of game hacks and free currency, indicating a phishing or scam attempt. The embedded URLs, such as http://netcdn.co/app/431946152/roblox-python-hack-scripts-game-hack, are designed to lead users to potentially harmful content. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest a malicious intent to trick users into downloading further malware or visiting malicious sites.

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-python-hack-scripts-game-hack In PDF document text
    • http://ofthalmiatrosthess.gr/images/minecraft-the-complete-handbook-collection_GM479516143.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/roblox-hack-rar_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-unused-roblox-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/pointsprizes-com-earn-free-robux-legally_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/best-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/roblox-tracker_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-roblox-script-executor-2021_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/free-shirt-templates-for-roblox_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/tiktok-free-to-use_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C9 22712 bytes
SHA-256: 278a8b824abca2ccfcfe2215c37c4e272524cd4cd36d6b79c5cc888b1faeefb7
font_01_sfnt_off00006460.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6460 19556 bytes
SHA-256: 5d1959193bec4575ee9bc10479c2e538bcb54222cff67a96b126109c92bd4b44

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