Malicious PDF — malware analysis report

Static analysis result for SHA-256 efd52e6b515c4a87…

MALICIOUS

PDF

15.1 KB Created: 2019-04-30 02:53:27 +01:00 Authoring application: mPDF 5.7
MD5: f049085d06bfe256222f828a643a6ad0 SHA-1: fd17fd6868752425f09a70a4e2f2476294c5e786 SHA-256: efd52e6b515c4a871e7afb12c4210bba25f7a577a087cae28772d849293ccb12
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external websites, a technique often used for SEO manipulation or to redirect users to malicious content. The ML classifier strongly indicated maliciousness. While the URLs themselves are currently marked as benign, the sheer volume and the PDF_SEO_LINK_FARM heuristic suggest a malicious intent to drive traffic or potentially host further stages of an attack. No scripts were extracted from this sample.

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.n
    • http://loaminoo.linkpc.net/3090097098090094/At-Love-s-Command-Brothers-in-Arms-4-by-Samantha-Kane.pdf
    • http://loaminoo.linkpc.net/2090095098092093/Love-and-War-The-Beginning-Brothers-in-Arms-0-5-by-Samantha-Kane.pdf
    • http://loaminoo.linkpc.net/4091094093092094/Fight-For-Love-Brothers-in-Arms-12-by-Samantha-Kane.pdf
    • http://loaminoo.linkpc.net/3096097092090099/Love-in-Exile-Brothers-in-Arms-6-by-Samantha-Kane.pdf
    • http://loaminoo.linkpc.net/4094099095090094/Devil-In-My-Arms-The-Saint-s-Devils-3-by-Samantha-Kane.pdf
    • http://loaminoo.linkpc.net/5090091095096090/Love-Walks-In-The-Shaughnessy-Brothers-2-by-Samantha-Chase.pdf
    • http://loaminoo.linkpc.net/8098098092094092/Rotk-ppchen-und-der-b-se-Wolfgang---Samantha-Love-Erotik-amp-BDSM-Collection-by-Samantha-Love.pdf
    • http://loaminoo.linkpc.net/2093090092093093/Samantha-by-Andrea-Kane.pdf
    • http://loaminoo.linkpc.net/4097098093099092/Islands-by-Samantha-Kane.pdf
    • http://loaminoo.linkpc.net/3095097091094097/Gift-of-Desire-by-Samantha-Kane.pdf
    • http://loaminoo.linkpc.net/4095090094094091/Calling-the-Play-Birmingham-Rebels-2-by-Samantha-Kane.pdf
    • http://loaminoo.linkpc.net/1099097090093096/The-Devil-s-Thief-The-Saint-s-Devils-1-by-Samantha-Kane.pdf
    • http://loaminoo.linkpc.net/4096097091098096/Safe-Love-A-Love-Brothers-Companion-Novella-Love-Brothers-1-5-by-Liz-Crowe.pdf
    • http://loaminoo.linkpc.net/1098090093094092/Brothers-In-Arms-Sidekick-2-by-Pab-Sungenis.pdf
    • http://loaminoo.linkpc.net/3090090091093096/Brothers-in-Arms-The-Becoming-1-5-by-Jessica-Meigs.pdf
    • http://loaminoo.linkpc.net/4097095092091098/The-Unwilling-Bride-Brothers-in-Arms-3-by-Margaret-Moore.pdf
    • http://loaminoo.linkpc.net/1096097090097097/Brothers-In-Arms-Recon-Diaries-1-by-Kendall-McKenna.pdf
    • http://loaminoo.linkpc.net/4097094091091098/Brothers-In-Arms-Recon-Diaries-1-by-Kendall-McKenna.pdf
    • http://loaminoo.linkpc.net/4097095091094093/Lord-of-Dunkeathe-Brothers-in-Arms-2-by-Margaret-Moore.pdf
    • http://loaminoo.linkpc.net/7097097097097099/Tyson-Caine-Brothers-in-Arms-1-by-Aleya-Michelle.pdf

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