Malicious PDF — malware analysis report

Static analysis result for SHA-256 55a91f5f26b8d55b…

MALICIOUS

PDF

12.5 KB Created: 2019-04-30 20:15:43 +01:00 Authoring application: mPDF 5.7
MD5: cc7b256138a041d80d1a462548718a44 SHA-1: 8c78d24eae745d5b6f1a63548731278285345625 SHA-256: 55a91f5f26b8d55b8c0eb0c68b6b3703a69779925c62e152859fa7712349a5cf
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. While many of these links were individually classified as benign, the sheer volume and the nature of the heuristic suggest a malicious intent, possibly for SEO manipulation or to distribute further malicious content. The ML classifier also flagged the document with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8780

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/3096090093092095/The-Twice-Dead-by-M-L-Katz.pdf
    • http://loaminoo.linkpc.net/3096094097099094/Katz-on-Dogs-A-Commonsense-Guide-to-Training-and-Living-with-Dogs-by-Jon-Katz.pdf
    • http://loaminoo.linkpc.net/5091092097095096/Glory-by-Ali-Katz.pdf
    • http://loaminoo.linkpc.net/6093095097090094/Nicolette-by-Herbert-M-Katz.pdf
    • http://loaminoo.linkpc.net/4097094092099091/The-Era-of-Courting-by-Jennifer-A-Katz.pdf
    • http://loaminoo.linkpc.net/7092091093093097/Gods-I-Have-Known-by-Brina-Katz.pdf
    • http://loaminoo.linkpc.net/3096098091091096/The-Information-Thieves-by-M-L-Katz.pdf
    • http://loaminoo.linkpc.net/3096097095097096/Raft-People-by-M-L-Katz.pdf
    • http://loaminoo.linkpc.net/4099097091098096/The-Day-the-Mustache-Took-Over-by-Alan-Katz.pdf
    • http://loaminoo.linkpc.net/2093098091099094/The-Manifesto-amp-Me-Meg-by-Bobbi-Katz.pdf
    • http://loaminoo.linkpc.net/9099094098098093/How-to-Remember-Practically-Everything-by-Eran-Katz.pdf
    • http://loaminoo.linkpc.net/4092095098093093/Freddy-Vs-Jason-Vs-Ash-by-Jeff-Katz.pdf
    • http://loaminoo.linkpc.net/1090096091090091092/Soho-Society-by-Bernie-Katz.pdf
    • http://loaminoo.linkpc.net/1090093093090091/Beauty-amp-Cruelty-by-Meredith-Katz.pdf
    • http://loaminoo.linkpc.net/3090096091091/The-Art-of-Fermentation-by-Sandor-Ellix-Katz.pdf
    • http://loaminoo.linkpc.net/1091090093097099090/F-hr-amp-Amrum-by-Dieter-Katz.pdf
    • http://loaminoo.linkpc.net/6091098091093096/Someplace-Warm-by-Annie-Katz.pdf
    • http://loaminoo.linkpc.net/1091090097099090096/Cabal-of-Zealots-by-Vincent-Katz.pdf
    • http://loaminoo.linkpc.net/6091090090093091/Alex-Katz-by-Carter-Ratcliffe.pdf
    • http://loaminoo.linkpc.net/1098097096099092/The-Principal-s-Daughter-by-Russ-Katz.pdf

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