Malicious PDF — malware analysis report

Static analysis result for SHA-256 68bfb5acdbf5dec4…

MALICIOUS

PDF

16.4 KB Created: 2019-04-30 02:17:10 +01:00 Authoring application: mPDF 5.7
MD5: addfe54c0f51ee9c9c6947d01bccfbea SHA-1: 47beeafb2cf867cc0411953eec4adadbb38759a4 SHA-256: 68bfb5acdbf5dec430efae13c67c1e5dbad7fe375df76aae0274924cfe460846
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified by the 'PDF_SEO_LINK_FARM' heuristic, which is a common technique for SEO manipulation or distributing malicious content. While the document body is heavily obfuscated, the presence of numerous URLs suggests an attempt to redirect users to external sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

Heuristics 2

  • 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.
  • 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://loaminoo.linkpc.net/1091094093095097093/Luanne-Rice-Collection-Follow-the-Stars-Home-Dream-Country-and-Summer-Light-by-Luanne-Rice.pdf
    • http://loaminoo.linkpc.net/1090092094093097/What-Matters-Most-by-Luanne-Rice.pdf
    • http://loaminoo.linkpc.net/7090099097096092/Little-Night-by-Luanne-Rice.pdf
    • http://loaminoo.linkpc.net/1098098099099095/The-Lemon-Orchard-by-Luanne-Rice.pdf
    • http://loaminoo.linkpc.net/1090092097095093/The-Perfect-Summer-by-Luanne-Rice.pdf
    • http://loaminoo.linkpc.net/3096094098091098/The-Edge-of-Winter-by-Luanne-Rice.pdf
    • http://loaminoo.linkpc.net/1090093090090095/Summer-s-Child-by-Luanne-Rice.pdf
    • http://loaminoo.linkpc.net/3095094099094093/Angels-All-Over-Town-by-Luanne-Rice.pdf
    • http://loaminoo.linkpc.net/2092092095090095/Summer-of-Roses-by-Luanne-Rice.pdf
    • http://loaminoo.linkpc.net/1090099091095093096/Barca-de-argint-by-Luanne-Rice.pdf
    • http://loaminoo.linkpc.net/1097095094093093/The-Secret-Language-of-Sisters-by-Luanne-Rice.pdf
    • http://loaminoo.linkpc.net/6092091092095/Follow-the-Stars-Home-by-Luanne-Rice.pdf
    • http://loaminoo.linkpc.net/1090092095090094097/Wie-Sand-in-meinen-H-nden-by-Luanne-Rice.pdf
    • http://loaminoo.linkpc.net/1091094093096098090/Reader-s-Digest-Select-Editions-Volume-261-2002-3-Safe-Harbor-The-Analyst-Fallen-Angel-Open-Season-by-Luanne-Rice.pdf
    • http://loaminoo.linkpc.net/1091094093095091099/Summer-s-Child-amp-Summer-of-Roses-by-Luanne-Rice.pdf
    • http://loaminoo.linkpc.net/5091099095096096/The-Rice-Book-The-Definitive-Book-on-the-Magic-of-Rice-with-Hundreds-of-Exotic-Recipes-from-Around-the-World-by-Sri-Owen.pdf
    • http://loaminoo.linkpc.net/1090094094098091095/The-Anne-Rice-Value-Collection-Lasher-The-Witching-Hour-Taltos-by-Anne-Rice.pdf
    • http://loaminoo.linkpc.net/9093093093097098/Treasure-of-Cumberland-Island-by-Joe-Hause.pdf
    • http://loaminoo.linkpc.net/9093093094099090/THE-PHANTOM-OF-THE-TALENT-SHOW-by-Joe-Hause.pdf
    • http://loaminoo.linkpc.net/4095092090096093/Eine-Zierde-in-ihrem-Hause-by-Asta-Scheib.pdf

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