Malicious PDF — malware analysis report

Static analysis result for SHA-256 8609a0b00dfcbc9c…

MALICIOUS

PDF

14.8 KB Created: 2019-05-04 14:53:17 +01:00 Authoring application: mPDF 5.7
MD5: b023dceea1d429927ee5377f4517dace SHA-1: 0b49d894bcea22cb454b40b7532aed7ee814bae4 SHA-256: 8609a0b00dfcbc9c725ba05f662ade8b9e1d2ce2a5b3dc73381f81eac4ee3f51
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious with high confidence. While the extracted URLs themselves are currently marked as benign, the sheer volume and the heuristic firing indicate a malicious intent. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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/9099099092094091/The-Seal-of-Solomon-The-Gifts-of-Solomon-Volume-1-by-Ryan-Mitchell.pdf
    • http://loaminoo.linkpc.net/2093090099091097/The-Seal-of-Solomon-Alfred-Kropp-2-by-Rick-Yancey.pdf
    • http://loaminoo.linkpc.net/1099096099091090/Solomon-vs-Lord-Solomon-vs-Lord-1-by-Paul-Levine.pdf
    • http://loaminoo.linkpc.net/5094099090094097/12-Years-a-Slave-Book-by-Solomon-Northup-Full-Twelve-Years-a-Slave-Original-Book-with-Annotated-Teaching-Lesson-Study-Guide-with-45-Essay-Questions-and-Answers-by-Solomon-Northup.pdf
    • http://loaminoo.linkpc.net/2095092098091095/Solomon-s-Oak-by-Jo-Ann-Mapson.pdf
    • http://loaminoo.linkpc.net/1095096096097097/The-Bow-of-Destiny-by-P-H-Solomon.pdf
    • http://loaminoo.linkpc.net/5096090092096097/Pampered-by-Germaine-Solomon.pdf
    • http://loaminoo.linkpc.net/9099099093094093/The-Art-of-Frozen-by-Charles-Solomon.pdf
    • http://loaminoo.linkpc.net/1098099091094091/Swept-Away-by-Kamery-Solomon.pdf
    • http://loaminoo.linkpc.net/9091099090094/Get-Down-Stories-by-Asali-Solomon.pdf
    • http://loaminoo.linkpc.net/3099096093097090/Snowed-In-by-F-Leonora-Solomon.pdf
    • http://loaminoo.linkpc.net/9091091099092098/Elements-by-Solomon-Deep.pdf
    • http://loaminoo.linkpc.net/4099096093096094/Beethoven-by-Maynard-Solomon.pdf
    • http://loaminoo.linkpc.net/1098096094096096/The-Little-Bride-by-Anna-Solomon.pdf
    • http://loaminoo.linkpc.net/1097093092093096/Solomon-s-Song-by-Sarah-De-Carvalho.pdf
    • http://loaminoo.linkpc.net/9099099093094092/The-Wisdom-of-Solomon-by-Ronald-Dunn.pdf
    • http://loaminoo.linkpc.net/9097090099097099/Illuminati-Manifesto-by-Solomon-Tulbure.pdf
    • http://loaminoo.linkpc.net/4093097091097090/The-Epidemic-of-Our-Time-by-Dr-Solomon-Agbor.pdf
    • http://loaminoo.linkpc.net/9099099093094099/Solomon-Kane-by-Ramsey-Campbell.pdf
    • http://loaminoo.linkpc.net/1091097095092/Two-Lethal-Lies-by-Annie-Solomon.pdf
    • http://loaminoo.linkpc.net/3099096093097090/Snowed-In-by-F-Leonora-Solom

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