Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f16556deb63858b…

MALICIOUS

PDF

17.0 KB Created: 2019-05-02 01:05:40 +01:00 Authoring application: mPDF 5.7
MD5: 12439a285645ece5c6d06b43a958050a SHA-1: f8a8ee9bb0e8653e292cc16d8e0941b5f6148f99 SHA-256: 0f16556deb63858b22f051f72b545f2f442b42c3a58409b0c5f518521e56a5e4
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded URLs, identified as a link farm. While the document body is heavily obfuscated, the heuristic firings and extracted URLs suggest the primary purpose is to direct users to external resources. The ML classifier strongly indicates malicious intent, likely related to SEO manipulation or distributing further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/9096099097091092/The-Silver-Lining-The-Benefits-of-Natural-Disasters-by-Seth-R-Reice.pdf
    • http://loaminoo.linkpc.net/6091090091099093/Silver-Lining-Silver-Cove-1-by-Jill-Sanders.pdf
    • http://loaminoo.linkpc.net/4093096091092094/Silver-Lining-by-E-J-Shortall.pdf
    • http://loaminoo.linkpc.net/9096099097091090/The-Silver-Lining-by-Rohini-Vij.pdf
    • http://loaminoo.linkpc.net/2092091091096097/Man-amp-Other-Natural-Disasters-by-Nerys-Parry.pdf
    • http://loaminoo.linkpc.net/9096099096099095/silver-lining-by-Gemma-Robson.pdf
    • http://loaminoo.linkpc.net/9096099096094096/A-Silver-Lining-by-Christine-Murray.pdf
    • http://loaminoo.linkpc.net/9096099094092099/Silver-Lining-by-Christiane-Heggan.pdf
    • http://loaminoo.linkpc.net/9096099096094094/Silver-Lining-by-Charles-Cohen.pdf
    • http://loaminoo.linkpc.net/9096099093095093/Look-for-the-Silver-Lining-by-June-Francis.pdf
    • http://loaminoo.linkpc.net/9096099096093095/Silver-Lining-by-Wendy-Soliman.pdf
    • http://loaminoo.linkpc.net/2090090094098094/Silver-Lining-by-Godwin-Iheanacho.pdf
    • http://loaminoo.linkpc.net/1092090093097096/Silver-Lining-by-Maggie-Osborne.pdf
    • http://loaminoo.linkpc.net/9096099093095095/Searching-for-a-Silver-Lining-by-Miranda-Dickinson.pdf
    • http://loaminoo.linkpc.net/9096099095092095/Silver-Lining-The-Guardian-of-Man-2-5-by-Melissa-A-Smith.pdf
    • http://loaminoo.linkpc.net/9096099094092095/A-Silver-Lining-Hearts-of-Gold-3-by-Catrin-Collier.pdf
    • http://loaminoo.linkpc.net/2092096092092/Every-Silver-Lining-Has-a-Cloud-Relapse-and-the-Symptoms-of-Sobriety-by-Scott-Stevens.pdf
    • http://loaminoo.linkpc.net/6092091091099090/The-End-Natural-Disasters-Manmade-Catastrophes-and-the-Future-of-Human-Survival-by-Marq-de-Villiers.pdf
    • http://loaminoo.linkpc.net/2096098091096096/The-Cure-for-Catastrophe-How-We-Can-Stop-Manufacturing-Natural-Disasters-by-Robert-Muir-Wood.pdf
    • http://loaminoo.linkpc.net/7095099093091093/How-to-Survive-The-End-of-the-World-Preparing-for-Armageddon-Natural-Disasters-Nuclear-Strikes-the-Zombie-Apocalypse-and-Every-Other-Threat-to-Human-Life-on-Earth-by-Paul-Gump.pdf

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