Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eece02a52eced7a…

MALICIOUS

PDF

41.2 KB Created: 2021-05-14 10:39:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 69ed20239239f2b9d07015a150babe5b SHA-1: 3011e0cd262b8eb48e3376724d476bba0e492ffe SHA-256: 4eece02a52eced7afbdccf98f138a8e995874c40567d9913a8e9ac74afb648ca
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and generators. The primary link identified, https://netcdn.xyz/app/479516143/free-multiplayer-minecraft-server-game-hack, is associated with a critical heuristic firing for a game hack redirect lure. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest an attempt to redirect users to a site that likely hosts further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/479516143/free-multiplayer-minecraft-server-game-hack In PDF document text
    • http://ptts.pl/images/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • http://ptts.pl/images/free-robux-games_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/mcpe-com_GM479516143.pdfIn PDF document text
    • http://ptts.pl/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://ptts.pl/images/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://ptts.pl/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/how-to-get-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://ptts.pl/images/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • http://ptts.pl/images/microsoft-roblox_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://ptts.pl/images/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://ptts.pl/images/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://ptts.pl/images/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://ptts.pl/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/coin-master-connection-lost_GM406889139.pdfIn PDF document text
    • http://ptts.pl/images/free-robux-website_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/how-to-download-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://ptts.pl/images/roblox-games-that-give-you-free-robux_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
stream_003_off00004677.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4677 24856 bytes
SHA-256: eb6cdc2844f717de276ca1dd7817df289fc616ef753e60360e4f503ca0fa2931
font_01_sfnt_off00007eb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB1 18252 bytes
SHA-256: 15432e288a3c492c6d4ea8af11726bc455bd5b0901c9f366813dc1a1d3aad7a5

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