Malicious PDF — malware analysis report

Static analysis result for SHA-256 b71694969b87d359…

MALICIOUS

PDF

41.8 KB Created: 2021-05-11 08:08:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: cece199c1a6d095219445db159c10c2c SHA-1: 799a0d989cb5bf862b5fedd3f78b630289acf53d SHA-256: b71694969b87d359be744e6a6bf4be839102a07bc14d9cc3c7b5e34f3e908159
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, many of which are part of a link farm designed to direct users to pages promising free in-game items. The ML classifier strongly indicated maliciousness, and the presence of a call-to-action button further supports a deceptive intent. The document's content and structure suggest it's part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/how-do-you-get-roblox-for-free-game-hack
    • http://serviio.org/images/master-coin-free-link_GM406889139.pdf
    • http://serviio.org/images/20-free-spin-link-coin-master_GM406889139.pdf
    • http://serviio.org/images/earn-rbx_GM431946152.pdf
    • http://serviio.org/images/free-robux-without-human-verification-2021_GM431946152.pdf
    • http://serviio.org/images/coin-master-ios-gods-hack_GM406889139.pdf
    • http://serviio.org/images/how-do-i-get-free-coins-on-coin-master_GM406889139.pdf
    • http://serviio.org/images/roblox-free-robux-no-verification_GM431946152.pdf
    • http://serviio.org/images/websites-that-give-you-free-robux_GM431946152.pdf
    • http://serviio.org/images/give-me-robux-now_GM431946152.pdf
    • http://serviio.org/images/free-money-links-coin-master_GM406889139.pdf
    • http://serviio.org/images/free-spins-for-coin-master-app_GM406889139.pdf
    • http://serviio.org/images/android-coin-master-3433-apk-hack_GM406889139.pdf
    • http://serviio.org/images/free-spins-coin-master-2021-today_GM406889139.pdf
    • http://serviio.org/images/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdf
    • http://serviio.org/images/roblox-free-bundles_GM431946152.pdf
    • http://serviio.org/images/free-robux-gift-card-codes-2021_GM431946152.pdf
    • http://serviio.org/images/free-spins-coin-master-hack-2021_GM406889139.pdf
    • http://serviio.org/images/free-robux-discord-servers_GM431946152.pdf
    • http://serviio.org/images/coin-master-free-pin_GM406889139.pdf
    • http://serviio.org/images/roblox-robux-hack-generator_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047a1.bin
4451810e5f7c16a6efabac7840df2e633d5975d7348218c0cbe7fa781470723e		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47A1 25096 bytes
font_01_sfnt_off00007f9f.bin
c319980467b8bcea808cf7446b1cb0422dd1c28f9b99e7a79dce679e259df094		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F9F 18688 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.