Malicious PDF — malware analysis report

Static analysis result for SHA-256 62f5d3ea4b8b4a50…

MALICIOUS

PDF

18.3 KB Created: 2019-05-02 10:39:36 +01:00 Authoring application: mPDF 5.7
MD5: 944c6462c537a04f0a8c370359b8f683 SHA-1: 3f93a3ec33859d07fe62a9dd9b84c5a706f59600 SHA-256: 62f5d3ea4b8b4a502095eae8a1c7028ba2e021273ab995bda3b7afb7cd22c6c6
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute malicious content. The ML classifier also flagged this document as malicious with high confidence. While no scripts were extracted, the embedded URLs and the heuristic firings suggest a malicious intent to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/2090099094096093/The-Christmas-Hope-Christmas-Hope-3-by-Donna-VanLiere.pdf
    • http://loaminoo.linkpc.net/2097091097094094/The-Christmas-Light-Christmas-Hope-7-by-Donna-VanLiere.pdf
    • http://loaminoo.linkpc.net/4097092099093/The-Christmas-Shoes-Christmas-Hope-1-by-Donna-VanLiere.pdf
    • http://loaminoo.linkpc.net/2090092096093092/Christmas-Wish-Hope-Falls-12-5-by-Melanie-Shawn.pdf
    • http://loaminoo.linkpc.net/6091098090097093/The-Hope-of-Christmas-with-Pope-Francis-by-Amette-Ley.pdf
    • http://loaminoo.linkpc.net/2096097091093099/The-Cowboy-s-Christmas-Bride-Hope-Montana-3-by-Patricia-Johns.pdf
    • http://loaminoo.linkpc.net/5090093090099094/A-Hope-Springs-Christmas-Brides-of-Amish-Country-7-by-Patricia-Davids.pdf
    • http://loaminoo.linkpc.net/7093094093098/A-Hope-Springs-Christmas-Brides-of-Amish-Country-7-by-Patricia-Davids.pdf
    • http://loaminoo.linkpc.net/3097093092091095/Christmas-Proposals-Her-Christmas-Romeo-The-Tycoon-s-Christmas-Engagement-A-Bride-for-Christmas-by-Carole-Mortimer.pdf
    • http://loaminoo.linkpc.net/3091096090092091/Sweet-Christmas-Kisses-Fourteen-Sweet-Christmas-Romances-by-Donna-Fasano.pdf
    • http://loaminoo.linkpc.net/3097094096092093/One-Christmas-Night-Highland-Christmas-A-Wife-For-Christmas-Ian-s-Gift-by-Ruth-Ryan-Langan.pdf
    • http://loaminoo.linkpc.net/2092095091092099/A-Bride-By-Christmas-Home-For-Christmas-The-Wise-Virgin-Tumbleweed-Christmas-by-Heather-Graham.pdf
    • http://loaminoo.linkpc.net/5090094099096091/Christmas-Once-Is-Christmas-Still-a-Christmas-Carol-with-Illustrations-by-Phillips-Brooks.pdf
    • http://loaminoo.linkpc.net/1090094098093094/His-Majesty-s-Hope-Maggie-Hope-Mystery-3-by-Susan-Elia-MacNeal.pdf
    • http://loaminoo.linkpc.net/7093096091092094/Hope-Rises-Hope-Trilogy-3-by-Alice-Bello.pdf
    • http://loaminoo.linkpc.net/2093093096094097/Undaunted-Hope-Beacons-of-Hope-3-by-Jody-Hedlund.pdf
    • http://loaminoo.linkpc.net/4096099097090091/Anne-Perry-s-Christmas-Vigil-A-Christmas-Promise-A-Christmas-Odyssey-Christmas-Stories-7-8-by-Anne-Perry.pdf
    • http://loaminoo.linkpc.net/3097094099095091/The-Angels-of-Morgan-Hill-by-Donna-VanLiere.pdf
    • http://loaminoo.linkpc.net/2092097091091095/A-Place-of-Hope-Hope-1-by-Anna-Jacobs.pdf
    • http://loaminoo.linkpc.net/9093090093097099/Hope-Forever-Looking-for-Hope-by-Colleen-Hoover.pdf

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