Malicious PDF — malware analysis report

Static analysis result for SHA-256 364eec198f714823…

MALICIOUS

PDF

44.2 KB Created: 2021-05-18 05:35:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 1705573db4435c37d5b9acbcaa32c77c SHA-1: ad889f76d2b243aa833689cbb775db5879dd46eb SHA-256: 364eec198f714823248a70bf795114213c5f07b9b2e97b591a91b7bcf28c34f2
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF links. The document body and extracted URLs suggest a lure for free game items and software, likely leading to malware downloads. The ML classifier strongly indicated maliciousness, and the presence of a link farm points to a campaign distributing malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-java-edition-for-free-game-hack PDF link annotation
    • http://meisterhaus-guterl.de/images/minecraft-hacks-xbox_GM479516143.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/2021-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/roblox-account-taker_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/coin-master-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/7-year-old-roblox_GM431946152.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_off00004c05.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C05 30120 bytes
SHA-256: 7dcf1877f9e82f6373643d01b1b83794614c0be7de7ca8f6aa90f9f1fc8fa730
font_01_sfnt_off00008b0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B0E 18164 bytes
SHA-256: e28d0ded599416f75746d42b4ddd49ac4ed584cd54835945167b34c6d366202b

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