Malicious PDF — malware analysis report

Static analysis result for SHA-256 32815df37b57ffa7…

MALICIOUS

PDF

18.0 KB Created: 2019-04-30 20:28:03 +01:00 Authoring application: mPDF 5.7
MD5: b87fabb1af29a10f5be090634ce1e833 SHA-1: 9ec0cabff08ff14851024beddef081b64919fdb4 SHA-256: 32815df37b57ffa7dd9698b067dea86be1e98154542f079799f5d11d8925b1dc
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a PDF_SEO_LINK_FARM heuristic. While the URLs themselves are currently marked as benign, the sheer volume and structure suggest a malicious intent, likely for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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/3098096092090097/Mistress-of-the-Monarchy-The-Life-of-Katherine-Swynford-Duchess-of-Lancaster-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3092096090/Katherine-of-Arag-n-The-True-Queen-Six-Tudor-Queens-1-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3091098093097097/Katherine-of-Aragon-The-True-Queen-Six-Tudor-Queens-1-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/2096091092096093/Katherine-of-Aragon-the-True-Queen-Six-Tudor-Queens-1-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3095096091092092/Wallis-in-Love-The-Untold-Life-of-the-Duchess-of-Windsor-the-Woman-Who-Changed-the-Monarchy-by-Andrew-Morton.pdf
    • http://loaminoo.linkpc.net/3099091098097/Eleanor-of-Aquitaine-A-Life-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/8093097091098/Innocent-Traitor-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/6095098092098091/Innocent-Traitor-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/1090093097098091/A-Dangerous-Inheritance-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3090095092092096/The-Lady-Elizabeth-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3094096092096/The-Six-Wives-of-Henry-VIII-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/2090098098093098/Captive-Queen-A-Novel-of-Eleanor-of-Aquitaine-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3097098095098094/Eleanor-of-Aquitaine-By-the-Wrath-of-God-Queen-of-England-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/1091091098090097095/Innocent-Traitor-A-Novel-of-Lady-Jane-Grey-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/1097098093091095/Anne-Boleyn-A-King-s-Obsession-Six-Tudor-Queens-2-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/5097094092/Anne-Boleyn-A-King-s-Obsession-Six-Tudor-Queens-2-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3097095099098091/Against-Our-Better-Judgment-The-Hidden-History-of-How-the-United-States-Was-Used-to-Create-Israel-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/9092094099094097/The-Richest-Girl-in-England-Katherine-Manners-Duchess-of-Buckingham-by-Lita-Rose-Betcherman.pdf
    • http://loaminoo.linkpc.net/7092092091093096/Queens-of-the-Conquest-England-s-Medieval-Queens-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/3093099095098091/Elizabeth-the-Queen-The-Lady-Elizabeth-by-Alison-Weir.pdf

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