Malicious PDF — malware analysis report

Static analysis result for SHA-256 dea496910a7f13ec…

MALICIOUS

PDF

15.5 KB Created: 2019-05-02 05:06:26 +01:00 Authoring application: mPDF 5.7
MD5: fb1d9d6ee7190978035454660496ef01 SHA-1: c2c10063e561ea4227398236a2f4b65e55f58be1 SHA-256: dea496910a7f13ec57c9e5f08c65dddf4c04ab284b4094a64cd6bca13ca99837
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic. While the document body is unreadable, the presence of numerous links suggests an attempt to manipulate search engine results or distribute content from these linked URLs. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/1090092098097094094/Summerhill-for-and-Against-Outstanding-Writers-in-Education-and-Psychology-Evaluate-the-Concepts-of-A-S-Neill-by-A-S-Neill.pdf
    • http://loaminoo.linkpc.net/1090092098098098092/Talking-of-Summerhill-by-A-S-Neill.pdf
    • http://loaminoo.linkpc.net/1090092098097090097/Summerhill-And-A-S-Neill-by-Mark-Vaughan.pdf
    • http://loaminoo.linkpc.net/4095095095095093/The-Price-of-Loyalty-George-W-Bush-the-White-House-and-the-Education-of-Paul-O-Neill-by-Ron-Suskind.pdf
    • http://loaminoo.linkpc.net/1091092094091095/Only-Ever-Yours-by-Louise-O-39-Neill.pdf
    • http://loaminoo.linkpc.net/3097094098099/Only-Ever-Yours-by-Louise-O-39-Neill.pdf
    • http://loaminoo.linkpc.net/5093095098095/The-Last-Man-Alive-by-A-S-Neill.pdf
    • http://loaminoo.linkpc.net/3095096094098/The-Dog-by-Joseph-O-39-Neill.pdf
    • http://loaminoo.linkpc.net/4094090099095099/Asking-For-It-by-Louise-O-39-Neill.pdf
    • http://loaminoo.linkpc.net/1090092098097095092/You-Can-Have-What-You-Want-by-Michael-Neill.pdf
    • http://loaminoo.linkpc.net/3093091095091092/Asking-For-It-by-Louise-O-39-Neill.pdf
    • http://loaminoo.linkpc.net/1095099091095095/Ah-Wilderness-by-Eugene-O-39-Neill.pdf
    • http://loaminoo.linkpc.net/2093090092098099/Netherland-by-Joseph-O-39-Neill.pdf
    • http://loaminoo.linkpc.net/5092090097097096/Bennett-amp-Company-by-J-M-O-39-Neill.pdf
    • http://loaminoo.linkpc.net/7094092093095099/Skabt-for-dig-by-Louise-O-39-Neill.pdf
    • http://loaminoo.linkpc.net/1094090098094096/The-Hopeful-by-Tracy-O-39-Neill.pdf
    • http://loaminoo.linkpc.net/3093093098090094/Netherland-by-Joseph-O-39-Neill.pdf
    • http://loaminoo.linkpc.net/1090092098097093098/Freedom-Not-License-by-A-S-Neill.pdf
    • http://loaminoo.linkpc.net/2095097094094093/Deepwater-by-Judith-O-39-Neill.pdf
    • http://loaminoo.linkpc.net/1096096097098092/Almost-Right-with-the-World-by-Lucinda-O-39-Neill.pdf

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