Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bd382c7ed373770…

MALICIOUS

PDF

17.5 KB Created: 2019-05-01 08:07:30 +01:00 Authoring application: mPDF 5.7
MD5: aae2686f1a51d3d710cc3f498506eaec SHA-1: 67044ab6290207b92cba9e54818be0c7fcce9daa SHA-256: 0bd382c7ed373770b9bfcc0acdfddee90fa43eec8e0e95c8476dfe279befe637
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. These URLs point to external sites, suggesting the document's primary purpose is to redirect users to these locations. The ML classifier also flagged this PDF as malicious, reinforcing the suspicious nature of the embedded links. No scripts were extracted from this sample.

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/1097091095098092/Puerto-Rico-Around-the-World-in-80-Men-21-by-Rebecca-Ratliff.pdf
    • http://loaminoo.linkpc.net/1097091094098096/Holland-Around-the-World-in-80-Men-25-by-Rebecca-Ratliff.pdf
    • http://loaminoo.linkpc.net/1097091096092095/Finland-Around-the-World-in-80-Men-16-by-Rebecca-Ratliff.pdf
    • http://loaminoo.linkpc.net/1097091094097093/Argentina-Around-the-World-in-80-Men-18-by-Rebecca-Ratliff.pdf
    • http://loaminoo.linkpc.net/1097091096090094/Romania-Around-the-World-in-80-Men-19-by-Rebecca-Ratliff.pdf
    • http://loaminoo.linkpc.net/1097091095099094/Nevada-Around-the-World-in-80-Men-22-by-Rebecca-Ratliff.pdf
    • http://loaminoo.linkpc.net/1097091095093091/Poland-Around-the-World-in-80-Men-27-by-Rebecca-Ratliff.pdf
    • http://loaminoo.linkpc.net/3099095095095093/Costa-Rica-Around-the-World-in-80-Men-30-by-Rebecca-Ratliff.pdf
    • http://loaminoo.linkpc.net/1090093099094092095/Puerto-Rico-by-Brendan-Sainsbury.pdf
    • http://loaminoo.linkpc.net/7093091099090091/Puerto-Rico-Remembered-by-Fernando-Pic-.pdf
    • http://loaminoo.linkpc.net/1090093099093091098/Puerto-Rico-City-by-David-R-Martin.pdf
    • http://loaminoo.linkpc.net/1094093093093094/Parrots-Over-Puerto-Rico-by-Susan-L-Roth.pdf
    • http://loaminoo.linkpc.net/7093091099090090/Puerto-Rico-Inside-and-Out-Changes-and-Continuities-by-Fernando-Pic-.pdf
    • http://loaminoo.linkpc.net/1094093099093095/The-Golden-Flower-A-Taino-Myth-from-Puerto-Rico-by-Nina-Jaffe.pdf
    • http://loaminoo.linkpc.net/6094092099094090/Puerto-Rico-in-the-American-Century-a-History-Since-1898-by-C-sar-J-Ayala.pdf
    • http://loaminoo.linkpc.net/1090093099094091095/Reproducing-Empire-Race-Sex-Science-and-U-S-Imperialism-in-Puerto-Rico-by-Laura-Briggs.pdf
    • http://loaminoo.linkpc.net/5092096092091090/Suaves-Dominaciones-Criticas-y-Utopias-de-Los-Medios-En-Puerto-Rico-by-H-ctor-Sep-lveda.pdf
    • http://loaminoo.linkpc.net/9093090091094097/Prion-Birdwatchers-Guide-to-Cuba-Jamaica-Hispaniola-Puerto-Rico-and-the-Caymans-by-Guy-M-Kirwan.pdf
    • http://loaminoo.linkpc.net/8097095096090092/Scripts-of-Blackness-Race-Cultural-Nationalism-and-U-S-Colonialism-in-Puerto-Rico-by-Isar-P-Godreau.pdf
    • http://loaminoo.linkpc.net/8092098094097091/Imposing-Decency-The-Politics-of-Sexuality-and-Race-in-Puerto-Rico-1870-1920-by-Eileen-J-Su-rez-Findlay.pdf

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