Malicious PDF — malware analysis report

Static analysis result for SHA-256 759c7e55d0925352…

MALICIOUS

PDF

15.8 KB Created: 2019-05-04 14:20:32 +01:00 Authoring application: mPDF 5.7
MD5: 4c656f223a175b08097cbe55e2ae6f2e SHA-1: 037d263c861a4adee53b99ae47b0ced91aa5325e SHA-256: 759c7e55d092535242df9386e011846cb902d1724bf7f4150ab3ec2274940d8f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on the same domain, suggesting an attempt to manipulate search engine results or distribute content. While the ML classifier strongly flagged this as malicious, the specific intent beyond link farming is unclear, leading to an unknown family classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9892

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/1097094096092097/Bride-Reborn-Star-Brides-2-by-Solange-Ayre.pdf
    • http://loaminoo.linkpc.net/1097094096090093/One-Thousand-Brides-Star-Brides-1-by-Solange-Ayre.pdf
    • http://loaminoo.linkpc.net/4093093091093096/The-Bride-Star-Civil-War-Brides-Book-6-by-Tracey-Jane-Jackson.pdf
    • http://loaminoo.linkpc.net/4098099097099/The-Brides-Trilogy-A-3-In-1-Edition-Including-The-Sherbrooke-Bride-The-Hellion-Bride-And-The-Heiress-Bride-by-Catherine-Coulter.pdf
    • http://loaminoo.linkpc.net/1099096097097092/Trinity-Blood-Reborn-on-the-Mars-Volume-1-The-Star-of-Sorrow-by-Sunao-Yoshida.pdf
    • http://loaminoo.linkpc.net/4099095095095093/The-Bartered-Bride-The-Brides-3-by-Lena-Goldfinch.pdf
    • http://loaminoo.linkpc.net/1092090094092091/The-Sherbrooke-Bride-Brides-1-by-Catherine-Coulter.pdf
    • http://loaminoo.linkpc.net/2093093098091093/Every-Bride-Has-Her-Day-Brides-with-Style-3-by-Janice-Thompson.pdf
    • http://loaminoo.linkpc.net/2090094095091094/Desperate-Bride-Forever-Brides-3-by-A-S-Fenichel.pdf
    • http://loaminoo.linkpc.net/3099095098097090/The-Bride-Says-No-The-Brides-of-Wishmore-1-by-Cathy-Maxwell.pdf
    • http://loaminoo.linkpc.net/2092096091093093/Reborn-Vol-08-The-Neighboring-Town-Boys-Arrives-Reborn-8-by-Akira-Amano.pdf
    • http://loaminoo.linkpc.net/2091096094091099/His-Brother-s-Bride-Kansas-Brides-4-by-Denise-Hunter.pdf
    • http://loaminoo.linkpc.net/2096092099099093/Alien-General-s-Bride-Brion-Brides-3-by-Vi-Voxley.pdf
    • http://loaminoo.linkpc.net/2092092098091092/Accidental-Bride-Beaufort-Brides-3-by-Noelle-Adams.pdf
    • http://loaminoo.linkpc.net/9096091092096097/A-Bride-for-Ethan-Sun-River-Brides-3-by-Karla-Gracey.pdf
    • http://loaminoo.linkpc.net/9096091091098095/A-Bride-for-Mackenzie-Sun-River-Brides-2-by-Karla-Gracey.pdf
    • http://loaminoo.linkpc.net/2099091094090095/The-Scarlet-Bride-School-for-Brides-3-by-Cheryl-Ann-Smith.pdf
    • http://loaminoo.linkpc.net/2097099097093099/The-Highlander-Takes-a-Bride-Highland-Brides-3-by-Lynsay-Sands.pdf
    • http://loaminoo.linkpc.net/4094093091092095/The-Brazilian-s-Blackmailed-Bride-The-Ramirez-Brides-2-by-Michelle-Reid.pdf
    • http://loaminoo.linkpc.net/2095090094098090/The-Earl-s-London-Bride-The-Chase-Brides-1-by-Lauren-Royal.pdf

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