Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf8d6ce28e6ba6cd…

MALICIOUS

PDF

34.2 KB Created: 2021-06-02 16:06:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 541ff3b9dd3354d2d926625a1de8ca7b SHA-1: b10aaf91bb34230dcd83d83f14eccdf9779442dd SHA-256: bf8d6ce28e6ba6cd2da9302799016c34c6406588fb3d25d07191eddf5b30069c
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links to external websites, many of which are SEO-optimized and related to game hacks and cheats. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, suggesting a malicious intent to redirect users to potentially harmful content or phishing sites. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 3

  • 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.
  • 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/431946152/pink-paradigm-hack-created-by-lord-of-robux-explication-game-hack
    • http://halitbayramoglu.com.tr/images/coins-master-hack_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/how-to-get-minecraft-java-edition-for-free_GM479516143.pdf
    • http://halitbayramoglu.com.tr/images/update-coin-master-free-spins_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/free-robux-survey_GM431946152.pdf
    • http://halitbayramoglu.com.tr/images/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdf
    • http://halitbayramoglu.com.tr/images/free-coin-master-link-2021_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/how-to-actually-get-free-robux_GM431946152.pdf
    • http://halitbayramoglu.com.tr/images/how-to-get-free-robux-for-free_GM431946152.pdf
    • http://halitbayramoglu.com.tr/images/impact-minecraft-hack_GM479516143.pdf
    • http://halitbayramoglu.com.tr/images/coin-master-free-spins-app_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/coin-master-spin-link-free_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/how-to-earn-free-robux_GM431946152.pdf
    • http://halitbayramoglu.com.tr/images/roblox-free-items_GM431946152.pdf
    • http://halitbayramoglu.com.tr/images/coin-master-free-coins-and-spins-daily_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/how-to-get-free-robux-2021_GM431946152.pdf
    • http://halitbayramoglu.com.tr/images/how-to-get-free-golden-card-in-coin-master_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdf
    • http://halitbayramoglu.com.tr/images/play-minecraft-online-free_GM479516143.pdf
    • http://halitbayramoglu.com.tr/images/free-robux-no-email_GM431946152.pdf
    • http://halitbayramoglu.com.tr/images/coin-master-hack-no-survey-or-verification_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000530c.bin
274ad50864fb552254be3f6f73168e68aa70a1f1cf6716dae009338ef4d1a677		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x530C 26020 bytes

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