Malicious PDF — malware analysis report

Static analysis result for SHA-256 da482ba393a9102c…

MALICIOUS

PDF

12.5 KB Created: 2019-05-02 18:22:33 +01:00 Authoring application: mPDF 5.7
MD5: 158d2134e021709ed2374026327abc82 SHA-1: 50502e1207973b84f0c631ce0b9d482e25ba120b SHA-256: da482ba393a9102c5a4059f4a050751e3f7856f372acc3428a7f4cf2d424a38e
90 Risk Score

Malware Insights

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

The PDF file exhibits a critical heuristic firing for a link farm, containing numerous embedded URLs. The ML classifier also flagged the document as malicious. The primary attack pattern appears to be SEO manipulation or distributing links to potentially malicious content, rather than direct exploitation within the PDF itself.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8780

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/3094098097095092/Letting-You-In-Letting-You-In-1-by-Nora-Flite.pdf
    • http://loaminoo.linkpc.net/1092098090093095/Zoe-Letting-Go-by-Nora-Price.pdf
    • http://loaminoo.linkpc.net/3095091096093096/Last-of-the-Bad-Boys-by-Nora-Flite.pdf
    • http://loaminoo.linkpc.net/5095093099/Royally-Bad-Bad-Boy-Royals-1-by-Nora-Flite.pdf
    • http://loaminoo.linkpc.net/3095091094096095/For-the-Fight-Beyond-Blood-2-by-Nora-Flite.pdf
    • http://loaminoo.linkpc.net/6093090093099/Letting-Ana-Go-by-Anonymous.pdf
    • http://loaminoo.linkpc.net/4099092093093090/Falling-Letting-Go-2-by-S-T-Prussing.pdf
    • http://loaminoo.linkpc.net/2097092098098099/Not-Letting-Go-by-Danni-Keane.pdf
    • http://loaminoo.linkpc.net/3098097097098092/Letting-Go-by-Megan-Hart.pdf
    • http://loaminoo.linkpc.net/2093093093099092/Letting-In-the-Light-by-Fae-Sutherland.pdf
    • http://loaminoo.linkpc.net/3095097092091098/Letting-You-Go-by-Anouska-Knight.pdf
    • http://loaminoo.linkpc.net/3099090094096099/Letting-Go-Rock-Bay-2-by-M-J-O-39-Shea.pdf
    • http://loaminoo.linkpc.net/7096094092093099/Letting-Go-Holding-On-2-by-Meg-Jolie.pdf
    • http://loaminoo.linkpc.net/1091097099098094094/Letting-Go-by-Abbie-Zanders.pdf
    • http://loaminoo.linkpc.net/1094097093095093/Letting-Go-Awakenings-1-by-Michele-Zurlo.pdf
    • http://loaminoo.linkpc.net/1095097094093090/Letting-in-Light-by-Emma-Davies.pdf
    • http://loaminoo.linkpc.net/2099096097099098/Letting-Go-Adventures-Inc-1-by-Danielle-Taylor.pdf
    • http://loaminoo.linkpc.net/3097095090095091/The-Secret-to-Letting-Go-by-Katherine-Fleet.pdf
    • http://loaminoo.linkpc.net/1097095093098094/The-Secret-to-Letting-Go-by-Katherine-Fleet.pdf
    • http://loaminoo.linkpc.net/1097090094097092/Letting-Evil-In-by-Ellie-Eden.pdf
    • http://loaminoo.linkpc.net/7096094092093099/Letting-

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