Malicious PDF — malware analysis report

Static analysis result for SHA-256 376e9ced8129487e…

MALICIOUS

PDF

45.6 KB Created: 2021-05-12 17:11:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 58643ae647a13897f64d071466153e9d SHA-1: c7c87b4a81a05e01bcfed0bb2331dc2ebb2f9418 SHA-256: 376e9ced8129487e353965ba6c94fcbf2f629e22fa27f02d91d19b3631cb5b35
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising free generators or game hacks. The primary malicious URL identified is https://netcdn.xyz/app/431946152/www-bandicam-com-free-robux-game-hack. This indicates a social engineering lure designed to trick users into visiting potentially harmful sites, likely for credential harvesting or further malware delivery.

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 https://netcdn.xyz/app/431946152/www-bandicam-com-free-robux-game-hack In PDF document text
    • http://www.europeancamerata.com/userfiles/files/minecraft-app-free-download_GM479516143.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/robux-com-free_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/coin-master-free-coins-app_GM406889139.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/rbx-hut_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/hack-coin-master-xyz_GM406889139.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/coin-master-fb-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/minecraft-free-download-mac-full-version_GM479516143.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/coin-master-hack-apk-android_GM406889139.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://www.europeancamerata.com/userfiles/files/daily-coin-master-free-spins_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_off00004be2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BE2 28536 bytes
SHA-256: 577dfea12cd9bcf1a13c53188e519bbd14141012cd6acda063b514f3f7b2fc41
font_01_sfnt_off00008d8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D8F 19156 bytes
SHA-256: 046fece166e0c344053b4db6f28898a504184055d343b56560be82d41958fbf7

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