Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ca909d72bf1eb5e…

MALICIOUS

PDF

43.6 KB Created: 2021-05-15 08:07:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: b2507ec0e5ae75726141ca921e299351 SHA-1: 6ad2c72fc46776ffdb3d8bf8693c594853d9bc0f SHA-256: 8ca909d72bf1eb5ecf747d123cba916b79bf8ee43314f89f1d70cccd6f84831f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free in-game currency, directing users to malicious redirectors. The primary malicious URL identified is https://netcdn.xyz/app/479516143/minecraft-hack-mod-game-hack, which appears to host further malicious content. The document also contains numerous links to other PDFs hosted on friendshiptransport.net, likely part of a phishing or malware distribution chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/minecraft-hack-mod-game-hack In PDF document text
    • http://www.friendshiptransport.net/images/coin-master-hack-app-link_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/minecraft-windows-free_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/coin-master-hack-cheat-engine_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/coin-master-free-link-daily_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/http-bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/minecraft-free-school_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/coin-master-free-in-app-purchases_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/free-minecraft-mods-for-ps4_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/freespinandcoinblogspot-com-2021-11-coinmasterfreespins_GM406889139.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
stream_003_off00004ed9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ED9 25876 bytes
SHA-256: 160df6c19debe48ae941a73d8f7a364d1a74bbd27d9e702db8bd72afd1de633f
font_01_sfnt_off000088ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88FF 18056 bytes
SHA-256: c98163390533840513273057c02ab8b0002c23ddfc36b9b9583c7d176bc18763

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