Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ea3916f35cfbeda…

MALICIOUS

PDF

26.1 KB Created: 2019-05-01 13:53:15 +01:00 Authoring application: mPDF 5.7
MD5: b23ce645ae5e98cdb3942a3919315e51 SHA-1: f1fe3d2b60351406925abb70a3afe3337353b057 SHA-256: 4ea3916f35cfbedaa54d7b01131c3f642cb6d746d6b87742b02961275d67c6af
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, which strongly suggests a malicious intent to manipulate search engine results or redirect users to potentially harmful content. The ML classifier also flagged this PDF with high confidence. While no scripts were extracted, the sheer volume of links and the heuristic firing indicate a malicious document designed to lead users to external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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
    • http://loaminoo.linkpc.net/8099092093098095/Breasts-The-Owner-s-Manual-Every-Woman-s-Guide-to-Reducing-Cancer-Risk-Making-Treatment-Choices-and-Optimizing-Outcomes-by-Kristi-Funk.pdf
    • http://loaminoo.linkpc.net/1090098094093097099/Earth-Ponds-Sourcebook-The-Pond-Owner-s-Manual-and-Resource-Guide-by-Tim-Matson.pdf
    • http://loaminoo.linkpc.net/8096091095099094/The-Ultimate-Bicycle-Owner-s-Manual-The-Universal-Guide-to-Bikes-Riding-and-Everything-for-Beginner-and-Seasoned-Cyclists-by-Eben-Weiss.pdf
    • http://loaminoo.linkpc.net/1090095096090093090/Where-Do-I-Go-from-Here-an-Inspirational-Guide-to-Making-Authentic-Career-and-Life-Choices-by-Kenneth-Ruge.pdf
    • http://loaminoo.linkpc.net/1090095095098094094/Where-Do-I-Go-From-Here-An-Inspirational-Guide-To-Making-Authentic-Career-And-Life-Choices-by-Kenneth-C-Ruge.pdf
    • http://loaminoo.linkpc.net/1091094097093097098/Recovery-from-Cancer-The-Remarkable-Story-of-One-Woman-s-Struggle-with-Cancer-by-Elaine-Nussbaum.pdf
    • http://loaminoo.linkpc.net/4096090099092096/The-Owner-s-Manual-to-Terrible-Parenting-by-Guy-Delisle.pdf
    • http://loaminoo.linkpc.net/1090093092097090/Type-2-Diabetes-The-Owner-s-Manual-by-Daryl-Wein.pdf
    • http://loaminoo.linkpc.net/5092093098/You-Are-Here-An-Owner-s-Manual-for-Dangerous-Minds-by-Jenny-Lawson.pdf
    • http://loaminoo.linkpc.net/2092098092092090/YOU-Having-a-Baby-The-Owner-s-Manual-to-a-Happy-and-Healthy-Pregnancy-by-Michael-F-Roizen.pdf
    • http://loaminoo.linkpc.net/1091096092091092095/Cancer-Cureology-The-Ultimate-Survivor-s-Holistic-Guide-Integrative-Natural-Anti-Cancer-Answers-The-Science-and-Truth-by-Steven-A-Vasilev.pdf
    • http://loaminoo.linkpc.net/9099091091096094/Cancer-Metastasis-Molecular-and-Cellular-Biology-Host-Immune-Responses-and-Perspective-for-Treatment-by-V-Schirrmacher.pdf
    • http://loaminoo.linkpc.net/8094092095090092/Little-Green-Book-An-Owner-s-Manual-to-the-Planet-by-quot-Vole-quot-.pdf
    • http://loaminoo.linkpc.net/8096090091090098/On-Animal-and-Vegetable-Parasites-of-the-Human-Body-A-Manual-of-Their-Natural-History-Diagnosis-and-Treatment-Volume-1-by-Friedrich-Kuchenmeister.pdf
    • http://loaminoo.linkpc.net/9099094098096093/8-Choices-That-Will-Change-a-Woman-s-Life-by-Jill-Brisco.pdf
    • http://loaminoo.linkpc.net/5098094092090094/La-cocina-antic-ncer-The-Anticancer-Diet-Reduce-Cancer-Risk-Through-the-Foods-You-Eat-by-David-Khayat.pdf
    • http://loaminoo.linkpc.net/6099095096090093/The-New-Owner-s-Guide-to-Papillons-by-Deborah-Wood.pdf
    • http://loaminoo.linkpc.net/5091096098093097/The-Lesbian-S-M-Safety-Manual-Basic-Health-and-Safety-for-Woman-To-Woman-S-M-by-Patrick-Califia-Rice.pdf
    • http://loaminoo.linkpc.net/8099092095090091/Funk-on-Parables-Collected-Essays-by-Robert-W-Funk.pdf
    • http://loaminoo.linkpc.net/4097090092094095/The-Woman-s-Book-of-Choices-Abortion-Menstrual-Extraction-RU-486-by-Rebecca-Chalker.pdf

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