Malicious PDF — malware analysis report

Static analysis result for SHA-256 043b8b010bb221f3…

MALICIOUS

PDF

15.6 KB Created: 2019-04-30 18:29:57 +01:00 Authoring application: mPDF 5.7
MD5: da09820856cb0f865e2b98b264046176 SHA-1: 79f0339bc057aae8a8dc9bd0d3df32445535294c SHA-256: 043b8b010bb221f3d66001d0e4713031bd86bd16a9e27a41308f4dfc0c6b67a5
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of its specific intent beyond link distribution.

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/6098099090094098/When-Money-Was-In-Fashion-Henry-Goldman-Goldman-Sachs-and-the-Founding-of-Wall-Street-by-June-Breton-Fisher.pdf
    • http://loaminoo.linkpc.net/4093099090091092/Money-and-Power-How-Goldman-Sachs-Came-to-Rule-the-World-by-William-D-Cohan.pdf
    • http://loaminoo.linkpc.net/7094099097098094/And-the-Money-Kept-Rolling-In-and-Out-Wall-Street-the-IMF-and-the-Bankrupting-of-Argentina-by-Paul-Blustein.pdf
    • http://loaminoo.linkpc.net/6098099091098094/A-Dream-for-Two-by-Kate-Goldman.pdf
    • http://loaminoo.linkpc.net/1093099095092092/Follies-by-James-Goldman.pdf
    • http://loaminoo.linkpc.net/1099094090097097/Marathon-Man-by-William-Goldman.pdf
    • http://loaminoo.linkpc.net/2097098092094092/Gone-to-Dust-A-Novel-by-Matt-Goldman.pdf
    • http://loaminoo.linkpc.net/2099090092090097/The-Lion-in-Winter-by-James-Goldman.pdf
    • http://loaminoo.linkpc.net/2090095091091090/The-Lion-in-Winter-by-James-Goldman.pdf
    • http://loaminoo.linkpc.net/4090094092090097/The-Ghost-and-the-Darkness-by-William-Goldman.pdf
    • http://loaminoo.linkpc.net/1093095099094/The-Ashwater-Experiment-by-Amy-Goldman-Koss.pdf
    • http://loaminoo.linkpc.net/2097096097094091/The-Princess-Bride-by-William-Goldman.pdf
    • http://loaminoo.linkpc.net/1093098095097096/Living-My-Life-Vol-2-by-Emma-Goldman.pdf
    • http://loaminoo.linkpc.net/2098097094092094/The-Princess-Bride-by-William-Goldman.pdf
    • http://loaminoo.linkpc.net/6098099090094097/Emma-Goldman-by-Bonnie-Haaland.pdf
    • http://loaminoo.linkpc.net/6091092095092091/Latin-Via-Ovid-A-First-Course-by-Norma-Goldman.pdf
    • http://loaminoo.linkpc.net/1098092097096091/The-Silent-Gondoliers-by-William-Goldman.pdf
    • http://loaminoo.linkpc.net/7093097094091/The-Princess-Bride-by-William-Goldman.pdf
    • http://loaminoo.linkpc.net/4094093091092092/The-Princess-Bride-by-William-Goldman.pdf
    • http://loaminoo.linkpc.net/4094090096091097/Witch-Glitch-by-Leslie-Goldman.pdf

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