Malicious PDF — malware analysis report

Static analysis result for SHA-256 3efbaa0da20b05c0…

MALICIOUS

PDF

16.4 KB Created: 2019-04-30 04:08:41 +01:00 Authoring application: mPDF 5.7
MD5: aa6bced187da3c1c0e91f94c16fd2c90 SHA-1: 21d7a4518f19e7798d55ef1446231cc4cb1be422 SHA-256: 3efbaa0da20b05c0f0ec0ce6fbfedb518c738341a07e93d620df3eecd6e4f6d2
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various book titles hosted on the loaminoo.linkpc.net domain. While the URLs themselves are marked as benign, the sheer volume and the ML classifier's high confidence score suggest a malicious intent, likely to manipulate search engine results or redirect users to potentially harmful content. The attack pattern is consistent with SEO poisoning or a link farm used for traffic redirection.

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/6094095099096095/Heart-of-Darkness-Unabridged-Deluxe-Edition-An-Early-Modernist-Novel-From-the-Author-of-Nostromo-Lord-Jim-The-Secret-Agent-and-Under-Western-Eyes-Memoirs-Letters-amp-Critical-Essays-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/8091097091093093/Heart-of-Darkness-by-Joseph-Conrad-Illustrated-Heart-of-Darkness-1899-is-a-short-novel-by-Polish-novelist-Joseph-Conrad-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/6095091098099099/Heart-of-Darkness-Joseph-Conrad-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/1090095096097093090/The-Joseph-Conrad-Collection-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/4094093093091092/Amy-Foster-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/2092095097099095/The-Mirror-of-the-Sea-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/6098098098098/Youth-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/3097091091093092/The-Duel-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/1090096090091094091/Falk-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/7095096090098098/Amy-Foster-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/2092095096096096/An-Outcast-of-the-Islands-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/3097090098097092/Youth-amp-The-End-of-the-Tether-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/4094092092095094/An-Outcast-of-the-Islands-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/1090098097098096094/Heart-of-Darkness-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/5098090094097094/The-Heart-of-Darkness-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/5098093095091094/Heart-of-Darkness-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/4096095097097091/The-Secret-Agent-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/1090095092091095090/Heart-of-Darkness-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/3099097091091090/Gaspar-Ruiz-by-Joseph-Conrad.pdf
    • http://loaminoo.linkpc.net/8096099090097095/Heart-of-Darkness-by-Joseph-Conrad.pdf

Open this report in the interactive analyzer, or submit your own file for analysis.