Malicious PDF — malware analysis report

Static analysis result for SHA-256 49c17c38b539541b…

MALICIOUS

PDF

14.4 KB Created: 2019-05-07 06:02:40 +01:00 Authoring application: mPDF 5.7
MD5: ea0247b1978e5c0c2490a4945cb20c12 SHA-1: f2b7f4a8e1bffccf73de759157f53d5c3072087c SHA-256: 49c17c38b539541b621d7f71836fa7f905bec61a1587fa84c9c0a8b585304986
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a large number of embedded links, indicating a link farm or redirection scheme. The primary heuristic identified a "PDF_SEO_LINK_FARM" with 21 external links, suggesting the PDF's purpose is to distribute traffic to these URLs. No scripts were extracted from this sample. The presence of numerous links, coupled with the ML classification, strongly suggests a malicious intent, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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/3090093094097091/The-Bewitching-Tale-of-Stormy-Gale-Stormy-Gale-2-by-Christine-Bell.pdf
    • http://loaminoo.linkpc.net/2092091095097093/The-Twisted-Tale-of-Stormy-Gale-Stormy-Gale-1-by-Christine-Bell.pdf
    • http://loaminoo.linkpc.net/5098094096095096/A-Study-Guide-for-Yasunari-Kawabata-s-quot-grasshopper-and-the-Bell-Cricket-quot-by-Cengage-Learning-Gale.pdf
    • http://loaminoo.linkpc.net/2093092094098095/Call-Me-Sir-Sir-1-by-Stormy-Glenn.pdf
    • http://loaminoo.linkpc.net/2093092091099098/The-Master-s-Pet-by-Stormy-Glenn.pdf
    • http://loaminoo.linkpc.net/7096093090093091/Kaleidoscope-by-Stormy-Glenn.pdf
    • http://loaminoo.linkpc.net/4091090096099096/My-Girl-by-Stormy-Glenn.pdf
    • http://loaminoo.linkpc.net/2095095093090099/My-Lupine-Lover-by-Stormy-Glenn.pdf
    • http://loaminoo.linkpc.net/1097094097093096/Knaleg-Terraneu-3-by-Stormy-McKnight.pdf
    • http://loaminoo.linkpc.net/2098096099096094/The-Stormy-Petrel-by-Mary-Stewart.pdf
    • http://loaminoo.linkpc.net/2098094095090096/Stormy-Weather-by-Victoria-Clayton.pdf
    • http://loaminoo.linkpc.net/4099091099090098/Stormy-Petrel-by-Mary-Stewart.pdf
    • http://loaminoo.linkpc.net/3095095092091090/Protective-Custody-by-Stormy-Glenn.pdf
    • http://loaminoo.linkpc.net/3098090091090093/Knollig-Terraneu-2-by-Stormy-McKnight.pdf
    • http://loaminoo.linkpc.net/2093090092094099/Pleasing-Michael-by-Stormy-Glenn.pdf
    • http://loaminoo.linkpc.net/2096093092096095/Cowboy-Way-Blaecleah-Brothers-3-by-Stormy-Glenn.pdf
    • http://loaminoo.linkpc.net/4093091095093099/A-Dark-amp-Stormy-Night-by-Anne-Stuart.pdf
    • http://loaminoo.linkpc.net/3090093096096097/The-Cat-s-Meow-Assassin-s-Pride-1-by-Stormy-Glenn.pdf
    • http://loaminoo.linkpc.net/7094091098097094/Cali-amp-Drake-The-Alliance-1-by-Stormy-McKnight.pdf
    • http://loaminoo.linkpc.net/4094098096092092/Cowboy-Up-Blaecleah-Brothers-5-by-Stormy-Glenn.pdf
    • http://loaminoo.linkpc.net/209809609909

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