Malicious PDF — malware analysis report

Static analysis result for SHA-256 2648bcd2fba9fbb8…

MALICIOUS

PDF

20.6 KB Created: 2019-05-01 18:06:23 +01:00 Authoring application: mPDF 5.7
MD5: 0982ca23e23fec6f5fcbf3a52e5411e3 SHA-1: 67d75bb13b38a14e962d477a9d9c621ab4f9b645 SHA-256: 2648bcd2fba9fbb88d1d96676d2bc4dead43c54aeba34e9de8976eecd55516bf
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to external PDF files. While the ML classifier strongly indicates maliciousness, the specific intent beyond link farming is unclear due to the lack of executable scripts or exploitable content within the PDF body itself. The primary IOCs are the numerous URLs hosted on loaminoo.linkpc.net.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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/2092098097095093/Child-of-Satan-Child-of-God-by-Susan-Atkins---Whitehouse.pdf
    • http://loaminoo.linkpc.net/1096091098090091/Child-of-Satan-Child-of-God-by-Bob-Slosser.pdf
    • http://loaminoo.linkpc.net/3095098092093098/The-Other-Child-by-Lucy-Atkins.pdf
    • http://loaminoo.linkpc.net/4093095098093091/Global-Child-Welfare-and-Well-Being-Global-Child-Welfare-and-Well-Being-by-Susan-C-Mapp.pdf
    • http://loaminoo.linkpc.net/3099099098097091/Roots-of-Empathy-Changing-the-World-Child-by-Child-by-Mary-Gordon.pdf
    • http://loaminoo.linkpc.net/3095096099099095/When-your-Child-is-6-to-12-Middle-Childhood-Is-The-Last-Good-Chance-To-Hold-Your-Child-Close-by-John-M-Drescher.pdf
    • http://loaminoo.linkpc.net/9097091091093093/The-Child-and-the-State-in-India-Child-Labor-and-Education-Policy-in-Comparative-Perspective-by-Myron-Weiner.pdf
    • http://loaminoo.linkpc.net/1091091092092090099/Grieving-the-Child-I-Never-Knew-A-Devotional-for-Comfort-in-the-Loss-of-Your-Unborn-or-Newly-Born-Child-by-Kathe-Wunnenberg.pdf
    • http://loaminoo.linkpc.net/1090091097092091/To-a-Child-Love-Is-Spelled-Time-What-a-Child-Really-Needs-from-You-by-Mac-Anderson.pdf
    • http://loaminoo.linkpc.net/1090093094092094/Child-of-Faerie-Child-of-Earth-by-Jane-Yolen.pdf
    • http://loaminoo.linkpc.net/7094096095093/No-Child-of-Mine-by-Susan-Lewis.pdf
    • http://loaminoo.linkpc.net/3093096098093093/No-Child-of-Mine-by-Susan-Lewis.pdf
    • http://loaminoo.linkpc.net/1090096093093098090/Biker-Chicks-Volume-3-by-Susan-Child.pdf
    • http://loaminoo.linkpc.net/4095098094097096/Child-Care-A-Comprehensive-Guide-4-Volumes-Volume-1--Rationale-for-Child-Care-Services-Programs-Vs-Politics-by-Stevanne-Auerbach.pdf
    • http://loaminoo.linkpc.net/3099099095097097/Between-Parent-and-Child-The-Bestselling-Classic-That-Revolutionized-Parent-Child-Communication-by-Haim-G-Ginott.pdf
    • http://loaminoo.linkpc.net/2098095098092090/Phoenix-Child-Phoenix-Child-1-by-Alica-McKenna-Johnson.pdf
    • http://loaminoo.linkpc.net/5092091095093/Child-Witch-Kinshasa-Child-Witch-1-by-Mike-Ormsby.pdf
    • http://loaminoo.linkpc.net/1090094091098091096/Child-Adolescent-Mental-Health-CNS-Review-Child-Adolescent-Nurse-Review-Book-1-by-Kathleen-Courtney.pdf
    • http://loaminoo.linkpc.net/2091095091090093/Marie-Th-r-se-Child-of-Terror-The-Fate-of-Marie-Antoinette-s-Daughter-by-Susan-Nagel.pdf
    • http://loaminoo.linkpc.net/4092095098096095/Marie-Th-r-se-Child-of-Terror-The-Fate-of-Marie-Antoinette-s-Daughter-by-Susan-Nagel.pdf
    • http://loaminoo.linkpc.net/1091091092092090099

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