Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8d7fdfccb2478e…

MALICIOUS

PDF

18.3 KB Created: 2019-04-30 09:58:42 +01:00 Authoring application: mPDF 5.7 First seen: 2021-06-13
MD5: 024f506b5d5a225ff4ff6cda687a7bfa SHA-1: 6a31f3559fed06f5da60163b2b96424e36e29762 SHA-256: aa8d7fdfccb2478e4207df756511aa56d7ea92bff91af8262dd8adf431afab02
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to other PDFs, presented as academic or literary works, which is a common tactic for SEO spam or phishing. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the structure and embedded URLs suggest an attempt to redirect users to potentially malicious content, likely as part of a broader phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9754

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/4096095099092092/Longitudinal-Qualitative-Research-Analyzing-Change-Through-Time-by-Johnny-Saldana.pdf In PDF document text
    • http://loaminoo.linkpc.net/9094099099091096/Image-Based-Research-A-Sourcebook-for-Qualitative-Researchers-by-Jon-Prosser.pdfIn PDF document text
    • http://loaminoo.linkpc.net/1090099093090095097/Interviews-Learning-the-Craft-of-Qualitative-Research-Interviewing-by-Steinar-Kvale.pdfIn PDF document text
    • http://loaminoo.linkpc.net/8092098099097091/Qualitative-Music-Therapy-Research-Beginning-Dialogues-by-Mechtild-Langenberg.pdfIn PDF document text
    • http://loaminoo.linkpc.net/1099095098092097/Time-Out-1000-Books-to-Change-Your-Life-by-Time-Out-Guides.pdfIn PDF document text
    • http://loaminoo.linkpc.net/9093095097098/Time-and-Again-Time-Was-Times-Change-by-Nora-Roberts.pdfIn PDF document text
    • http://loaminoo.linkpc.net/2095090097095096/Johnny-s-Girl-Johnny-Be-Good-2-5-by-Paige-Toon.pdfIn PDF document text
    • http://loaminoo.linkpc.net/1091095092091098090/Crap-Lyrics-A-Celebration-of-the-Very-Worst-Pop-Lyrics-of-All-Time-Ever-by-Johnny-Sharp.pdfIn PDF document text
    • http://loaminoo.linkpc.net/2092090093093096/So-Much-Time-So-Little-Change-by-Thomas-M-Sullivan.pdfIn PDF document text
    • http://loaminoo.linkpc.net/1090099098094098093/A-Time-To-Change-by-Callie-Langridge.pdfIn PDF document text
    • http://loaminoo.linkpc.net/1091091093091093096/Breast-Cancer-Gene-Research-and-Medical-Practices-Transnational-Perspectives-in-the-Time-of-BRCA-by-Sahra-Gibbon.pdfIn PDF document text
    • http://loaminoo.linkpc.net/3092094094098095/Time-of-Change-Emerilia-7-by-Michael-Chatfield.pdfIn PDF document text
    • http://loaminoo.linkpc.net/7094093093094093/Time-For-A-Change-The-Return-Of-The-Republican-Party-In-Massachusetts-by-Ted-Frier.pdfIn PDF document text
    • http://loaminoo.linkpc.net/1099092099095/In-Search-of-Gay-America-Women-and-Men-in-a-Time-of-Change-by-Neil-Miller.pdfIn PDF document text
    • http://loaminoo.linkpc.net/7094099091090091/Three-Cups-of-Tea-One-Man-s-Journey-to-Change-the-World-One-Child-at-a-Time-by-Greg-Mortenson.pdfIn PDF document text
    • http://loaminoo.linkpc.net/8092099094090090/Analyzing-Devients-by-Klemke.pdfIn PDF document text
    • http://loaminoo.linkpc.net/7097092093098094/Twitter-for-Good-Change-the-World-One-Tweet-at-a-Time-by-Claire-D-az-Ortiz.pdfIn PDF document text
    • http://loaminoo.linkpc.net/8091099098091097/Johnny-Wander-Vol-3-Ballad-of-Laundry-Cat-Johnny-Wander-3-by-Ananth-Panagariya.pdfIn PDF document text
    • http://loaminoo.linkpc.net/6096096097098092/Analyzing-Schubert-by-Suzannah-Clark.pdfIn PDF document text
    • http://loaminoo.linkpc.net/5091090091096097/Biotech-Time-Bomb-How-Genetic-Engineering-Could-Irreversibly-Change-Our-World-by-Scott-Eastham.pdfIn PDF document text

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