Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7f132f4fb064e8f…

MALICIOUS

PDF

16.1 KB Created: 2019-04-30 05:13:54 +01:00 Authoring application: mPDF 5.7
MD5: 1c597b05cf4e00f9459a351c0c35a5fe SHA-1: 23c7a4f513c55cb338066e2af35df3c07964888a SHA-256: f7f132f4fb064e8f3638e79dbf6866af1ab88915f3c45809e1446aa42953f654
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, hosted on a dynamic DNS domain. This behavior is indicative of a link farm or a redirection scheme designed to obscure the ultimate destination or to distribute content. 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 0.9898

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/7099098092090093/Les-Aventures-d-Archibald-Le-Grillon-The-Adventures-Of-Archibald-The-Cricket-by-Patrick-Huet.pdf
    • http://loaminoo.linkpc.net/6092097092099/Force-of-Gravity-Gravity-1-by-Kelly-Stevenson.pdf
    • http://loaminoo.linkpc.net/2094096093095090/Gravity-Happens-Forcing-Gravity-2-by-Monica-Alexander.pdf
    • http://loaminoo.linkpc.net/8091099096098095/Letters-of-Archibald-MacLeish-1907-to-1982-by-Archibald-MacLeish.pdf
    • http://loaminoo.linkpc.net/4093097092095098/Unpacked-Travel-Disaster-Stories-by-Tony-Wheeler-and-Other-Lonely-Planet-Authors-by-Tony-Wheeler.pdf
    • http://loaminoo.linkpc.net/8091099096093093/Collected-Works-of-Archibald-Lampman-by-Archibald-Lampman.pdf
    • http://loaminoo.linkpc.net/2095097098090093/Spacetime-Physics-by-Edwin-F-Taylor.pdf
    • http://loaminoo.linkpc.net/3090094093099096/Planetary-Volume-4-Spacetime-Archaeology-by-Warren-Ellis.pdf
    • http://loaminoo.linkpc.net/1098090092091/Genuine-Value-The-John-Deere-Journey-by-John-J-Gerstner.pdf
    • http://loaminoo.linkpc.net/3098093098096091/Forcing-Gravity-Forcing-Gravity-1-by-Monica-Alexander.pdf
    • http://loaminoo.linkpc.net/1092092093096090/The-Magic-Journey-by-John-Nichols.pdf
    • http://loaminoo.linkpc.net/9095095094091092/An-Unsuccessful-Journey-by-John-Loeff.pdf
    • http://loaminoo.linkpc.net/4093096094096091/Jamaal-s-Journey-by-John-McCormack.pdf
    • http://loaminoo.linkpc.net/2093092093091091/Class-of-59-American-Journey-4-by-John-A-Heldt.pdf
    • http://loaminoo.linkpc.net/6098092092095090/A-Journey-of-Riches-Making-Changes-by-John-Spender.pdf
    • http://loaminoo.linkpc.net/5099094091096/Journey-Into-Darkness-Mindhunter-2-by-John-Edward-Douglas.pdf
    • http://loaminoo.linkpc.net/2093092092099097/Indiana-Belle-American-Journey-3-by-John-A-Heldt.pdf
    • http://loaminoo.linkpc.net/4092098090097090/Waiting-for-Pops-A-Journey-from-Boy-to-Man-by-John-Philip-Riffice.pdf
    • http://loaminoo.linkpc.net/1097098093098/A-Personal-Journey-to-the-Heart-of-Teaching-by-John-Fioravanti.pdf
    • http://loaminoo.linkpc.net/2093092092091097/Mercer-Street-American-Journey-2-by-John-A-Heldt.pdf

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