Malicious PDF — malware analysis report

Static analysis result for SHA-256 61c9fe250dd7fe3f…

MALICIOUS

PDF

15.2 KB Created: 2019-04-30 03:58:58 +01:00 Authoring application: mPDF 5.7
MD5: a0bb621bfd590dd6c31e0fe247c7700f SHA-1: f18b51bb66d655a56c237c85974cc4effa95f953 SHA-256: 61c9fe250dd7fe3f5f4d2f99e2582136d5b10204eec610082034951d53bc5a7f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which suggests an attempt to direct users to external content. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious nature of the file. No scripts were extracted from this sample, and the document body was unreadable, limiting further analysis of the specific lure.

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/3093097091096099/H-E-R-O-E-S-Trio-1-by-Kevin-Lee.pdf
    • http://loaminoo.linkpc.net/3092093094099094/Your-Mother-Was-a-Neanderthal-Time-Warp-Trio-r-i-Time-Warp-Trio-4-by-Jon-Scieszka.pdf
    • http://loaminoo.linkpc.net/2090096090093097/A-Perfect-Trio-by-Jade-Belfry.pdf
    • http://loaminoo.linkpc.net/4097096098099093/A-Trio-of-Murders-by-Jill-McGown.pdf
    • http://loaminoo.linkpc.net/3092093092096099/Tut-Tut-Time-Warp-Trio-6-by-Jon-Scieszka.pdf
    • http://loaminoo.linkpc.net/4091092098094094/The-New-Girl-Alpha-Trio-2-by-Ana-Vela.pdf
    • http://loaminoo.linkpc.net/1094098090090/The-Feel-Trio-by-Fred-Moten.pdf
    • http://loaminoo.linkpc.net/5095095092094097/The-Beaux-Arts-Trio-by-Nicholas-Delbanco.pdf
    • http://loaminoo.linkpc.net/5090091099096095/Wheel-of-Fortune-A-Western-Trio-by-Max-Brand.pdf
    • http://loaminoo.linkpc.net/7092093090091094/Trio-A-Novel-Biography-of-the-Schumanns-and-Brahms-by-Boman-Desai.pdf
    • http://loaminoo.linkpc.net/1096099099095092/Plays-Well-With-Others-A-Trio-of-Erotic-Tales-by-Selena-Kitt.pdf
    • http://loaminoo.linkpc.net/8090096092097/The-Not-So-Jolly-Roger-Time-Warp-Trio-2-by-Jon-Scieszka.pdf
    • http://loaminoo.linkpc.net/1091090099091091097/Dead-To-Me-A-Trio-of-Chilling-Tales-by-Kelley-Armstrong.pdf
    • http://loaminoo.linkpc.net/3092093092099097/Viking-It-and-Liking-It-Time-Warp-Trio-12-by-Jon-Scieszka.pdf
    • http://loaminoo.linkpc.net/3096095096099096/Coming-Clean-Monkey-Business-Trio-3-by-C-L-Parker.pdf
    • http://loaminoo.linkpc.net/3092093094097092/Da-Wild-Da-Crazy-Da-Vinci-Time-Warp-Trio-14-by-Jon-Scieszka.pdf
    • http://loaminoo.linkpc.net/5097097091093090/Trio-Oona-Chaplin-Carol-Matthau-Gloria-Vanderbilt-Portrait-Of-An-Intimate-Friendship-by-Aram-Saroyan.pdf
    • http://loaminoo.linkpc.net/1090098094097096092/Shootin-the-Shit-with-Kevin-Smith-The-Best-of-the-SModcast-by-Kevin-Smith.pdf
    • http://loaminoo.linkpc.net/4091098090099096/Reckless-Youth-Reckless---The-Smoky-Mountain-Trio-Book-1-by-Sierra-Hill.pdf
    • http://loaminoo.linkpc.net/1091096097090094094/Kevin-McCloud-s-Techniques-of-Decorating-by-Kevin-McCloud.pdf

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