Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e068c3a0270afa…

MALICIOUS

PDF

29.0 KB Created: 2019-04-30 04:33:12 +01:00 Authoring application: mPDF 5.7
MD5: 3a1c01ba1e5baa9d1e67192a9ce8269d SHA-1: caf18435202f6603645d841f4096d05f6c734538 SHA-256: 34e068c3a0270afa808a394abcead90bd92827dd62aed02e85e8c6fb16fb437d
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF was flagged by a machine learning classifier and contains a large number of embedded links to external PDFs, a technique often used for SEO manipulation or to distribute malicious content. While no scripts were extracted, the PDF structure and link farm heuristic suggest an attempt to lure users to external resources. The primary attack pattern involves a link farm designed to manipulate search results or distribute further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9892

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/4094097092095098/Culturally-Responsive-Teaching-and-the-Brain-Promoting-Authentic-Engagement-and-Rigor-Among-Culturally-and-Linguistically-Diverse-Students-by-Zaretta-Lynn-Hammond.pdf
    • http://loaminoo.linkpc.net/8090093097092095/Assessment-Accommodations-for-Classroom-Teachers-of-Culturally-and-Linguistically-Diverse-Students-by-Socorro-G-Herrera.pdf
    • http://loaminoo.linkpc.net/5090093098092097/Culturally-Responsive-Teaching-Theory-Research-and-Practice-by-Geneva-Gay.pdf
    • http://loaminoo.linkpc.net/5090094092096099/With-Rigor-for-All-Teaching-the-Classics-to-Contemporary-Students-by-Carol-Jago.pdf
    • http://loaminoo.linkpc.net/6095098095090094/Becoming-Culturally-Oriented-Practical-Advice-for-Psychologists-and-Educators-by-Nadya-A-Fouad.pdf
    • http://loaminoo.linkpc.net/8095099091098090/Student-Engagement-in-Higher-Education-Theoretical-Perspectives-and-Practical-Approaches-for-Diverse-Populations-by-Shaun-R-Harper.pdf
    • http://loaminoo.linkpc.net/9093092092095094/Managing-Diverse-Classrooms-How-to-Build-on-Students-Cultural-Strengths-by-Carrie-Rothstein-Fisch.pdf
    • http://loaminoo.linkpc.net/6099098098091099/Teaching-on-a-Tightrope-The-Diverse-Roles-of-a-Great-Teacher-by-Jack-Zevin.pdf
    • http://loaminoo.linkpc.net/5090093097098094/Never-Work-Harder-Than-Your-Students-amp-Other-Principles-of-Great-Teaching-by-Robyn-R-Jackson.pdf
    • http://loaminoo.linkpc.net/6099098099099097/Young-Citizens-of-the-World-Teaching-Elementary-Social-Studies-through-Civic-Engagement-by-Marilynne-Boyle-Baise.pdf
    • http://loaminoo.linkpc.net/5090094091096092/Teaching-Children-Compassionately-How-Students-and-Teachers-Can-Succeed-with-Mutual-Understanding-by-Marshall-B-Rosenberg.pdf
    • http://loaminoo.linkpc.net/6096092095093098/Brain-Based-Teaching-in-the-Digital-Age-by-Marilee-Sprenger.pdf
    • http://loaminoo.linkpc.net/4094098091091096/The-Art-of-Changing-the-Brain-Enriching-the-Practice-of-Teaching-by-Exploring-the-Biology-of-Learning-by-James-E-Zull.pdf
    • http://loaminoo.linkpc.net/1091093090094099093/Authentic-Voices-Authentic-Singing-A-Multicultural-Approach-to-Vocal-Music-Therapy-by-Sylka-Uhlig.pdf
    • http://loaminoo.linkpc.net/5094091093093099/Teaching-Reading-Strategies-In-The-Primary-Grades-Engaging-Lessons-and-Activities-That-Help-Young-Students-Learn-Key-Reading-Strategies-and-Become-Independent-Readers-by-Bette-Bergeron.pdf
    • http://loaminoo.linkpc.net/1090093090095096097/Teaching-Empathy-Animal-Assisted-Therapy-Programs-for-Children-and-Families-Exposed-to-Violence-by-Lynn-Lohr.pdf
    • http://loaminoo.linkpc.net/6096092095094098/Becoming-a-quot-wiz-quot-at-Brain-Based-Teaching-How-to-Make-Every-Year-Your-Best-Year-by-Marilee-Sprenger.pdf
    • http://loaminoo.linkpc.net/5098091096094097/Rigor-Mortis-by-Tomi-Ungerer.pdf
    • http://loaminoo.linkpc.net/5090094090098096/Mindful-Teaching-and-Teaching-Mindfulness-A-Guide-for-Anyone-Who-Teaches-Anything-by-Deborah-Schoeberlein-David.pdf
    • http://loaminoo.linkpc.net/4096095099091095/Reason-amp-Rigor-How-Conceptual-Frameworks-Guide-Research-by-Sharon-M-Ravitch.pdf
    • http://loaminoo.linkpc.net/6095098095090094/Becoming-Culturally-Oriented-Practical-Advice-

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