Malicious PDF — malware analysis report

Static analysis result for SHA-256 e11f64f34cb8a2aa…

MALICIOUS

PDF

34.3 KB Created: 2021-07-04 02:40:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 533ac177c0c1d8e62991e12ebc6f35a6 SHA-1: 35c77877ae4b373809f1ff90de19509e64412165 SHA-256: e11f64f34cb8a2aa9a3c141a82740773311481233de0833ff3d84ab806fc2311
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to IP addresses, that are designed to lure users into downloading game-related hacks and currency. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a link farm for distributing malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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 http://netcdn.tw/app/431946152/freerubux-game-hack
    • http://110.232.83.89/slimsppks/repository/minecraft-bedrock-free_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/mcpe-master-unlimited-coins-hack-apk_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/roblox-jailbreak-lamborghini-hack_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/free-spin-link-of-coin-master_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/coin-master-free-mighty-lion-card_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/how-to-get-free-robux-on-iphone_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/coin-master-free-spins-heaven_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-microsoft_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/play-minecraft-free-online-no-download_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-generator-no-surveys-2021_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/get-free-gear-in-roblox_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/coin-master-free-spin-trick_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/how-to-get-free-codes-in-roblox_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/coin-master-hack-spins-free_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-only-username-no-human-verification_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/blox-supply-free-robux_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/bux-gg-robux-free_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/real-free-spins-for-coin-master_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/hack-icebreaker-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030af.bin
f72f36cf209d1f15710df1714a610d3826c8244f1f6407d44b6399008f85488c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30AF 22360 bytes
font_01_sfnt_off00006287.bin
a4910544a3301e21d5425f47d387c0dcd2b1454e32e0c532c02705c370365377		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6287 18572 bytes

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