Malicious PDF — malware analysis report

Static analysis result for SHA-256 7617ba4bcc92f9ed…

MALICIOUS

PDF

14.4 KB Created: 2019-04-30 02:00:06 +01:00 Authoring application: mPDF 5.7
MD5: 1b982a1231ed38c3008c21945dd5c29c SHA-1: 7c429f3497ad1b1472c74d32116b22adcf876cf1 SHA-256: 7617ba4bcc92f9ed5271c6c354b6497a1f9282ee86b08fc0ba11f2f94743a079
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. While the document body is heavily obfuscated, the presence of numerous links suggests an attempt to manipulate search engine results or redirect users to malicious sites. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious nature of the file. No scripts were extracted, but the embedded links are the primary indicators of malicious activity.

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

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