MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of external links, a technique often used to create link farms for SEO manipulation or to distribute malicious content. The document body, though partially corrupted, suggests a lure related to educational worksheets. The primary heuristic identified a link farm with numerous PDF links hosted on various domains, indicating a coordinated effort to redirect users. The IOCs are the URLs extracted from the document, which are likely part of this redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne 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://mainestead.com/uploads/1/3/1/3/131384713/131384713.html#free+division+worksheets+for+2nd+gra PDF link annotation
- http://myblueprintforchange.com/uploads/1/3/0/4/130475921/joderilijabun_joxaxo_malebasifa_wexewelapisixu.pdfIn PDF document text
- http://sharpfocuscctv.com/uploads/1/3/0/7/130739173/40bc8bd9482828.pdfIn PDF document text
- http://rehabnation.us/uploads/1/3/0/5/130588403/3071517.pdfIn PDF document text
- http://sevilleluxuryestate.com/uploads/1/3/0/6/130621829/dififalirivebib.pdfIn PDF document text
- http://welhealth.org/uploads/1/3/0/5/130546538/7685492.pdfIn PDF document text
- http://personaltransformation.ca/uploads/1/3/0/6/130605178/1987740.pdfIn PDF document text
- http://jilljohnsonstorybooks.com/uploads/1/3/0/6/130620272/wozulowukuxugu.pdfIn PDF document text
- http://hamzicphotography.com/uploads/1/3/1/1/131164136/605114.pdfIn PDF document text
- http://grahams-gallery.com/uploads/1/3/0/5/130539881/8806439.pdfIn PDF document text
- http://flickick.com/uploads/1/3/0/4/130483860/222515.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006ea6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6EA6 | 8268 bytes |
SHA-256: 22b08385f4b87635487a65b7d947ba9f2a42c8ff8e2510def52b915d0e759a68 |
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font_01_sfnt_off00008e9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E9B | 2652 bytes |
SHA-256: e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea |
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