MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, many with numeric slugs, suggesting a link farm for SEO manipulation or to host malicious content. The ML classifier strongly indicated maliciousness. The document body, though partially garbled, contains text related to medical guidelines and the wkhtmltopdf application, which is often used to generate PDFs from web content, further supporting the link farm hypothesis. No scripts were extracted from this sample.
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://host117.carmichaelnl.com/uploads/1/3/0/7/130775833/130775833.html#american+college+of+gastroenterology+guideline+management+of+acute+pancreatitis+2017
- http://www.dev.kl-creation.fr/uploads/1/3/0/4/130435821/179ddd.pdf
- http://oahupix.com/uploads/1/3/0/6/130620564/mebajal.pdf
- http://www.treasuredbits.shop/uploads/1/3/0/7/130740623/wususevoma.pdf
- http://mrvangeelsclass.com/uploads/1/3/0/8/130814351/toxumuga_votofiku_lavinixarevo_dunerejiwajo.pdf
- http://www.onestepborders.com/uploads/1/3/0/7/130776037/tevof_ditozut_lobudonikel_pejiwisegaxe.pdf
- http://christieaariaemby.com/uploads/1/3/0/4/130490687/xajixavage_xopisapew.pdf
- http://blackbusinessexpo1.com/uploads/1/3/0/5/130588987/8fabaa2e0.pdf
- http://ohioccwtraining.net/uploads/1/3/0/6/130639030/sasagavim-kopesosufeb-zedujegub-fizurekazujaxaf.pdf
- http://creativityrevival.com/uploads/1/3/0/6/130620693/dafuwedisiw.pdf
- http://cassidytrom.com/uploads/1/3/0/8/130874035/162140.pdf
- http://totalplasma.org/uploads/1/3/0/6/130620185/wotezofusi.pdf
- http://brushlove.ca/uploads/1/3/0/7/130775918/2713055.pdf
- http://wordwatts.com/uploads/1/3/0/6/130620990/2538559.pdf
- http://fibromyalgiahealingnaturally.net/uploads/1/3/0/3/130379928/9324021.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006d9b.binf4881b7b7552003f63bc1ffa2bcb3c2d16e2d15aef780e48d80610e86cba8457 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D9B | 8856 bytes |
font_01_sfnt_off00008ef7.binc96d6750c986962f8c59bcd816ed2d5df4b0e62bd7ecc8e827034f7b10343afe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8EF7 | 16200 bytes |
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