MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF contains a large number of embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to surgical equipment manuals. The primary attack vector is likely a user being tricked into clicking the malicious link within the PDF, leading to the redirector.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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 https://ttraff.cc/wb?keyword=stealthstation%20s7%20surgical%20navigation%20system%20manual In PDF document text
- http://files.ginconferencegindc.org/uploads/1/3/2/6/132681210/6518339.pdfIn PDF document text
- http://files.nittennair.com/uploads/1/3/1/6/131636562/pajefowanomawu-dakikitu-telarevoweg.pdfIn PDF document text
- http://files.commiefaggots.com/uploads/1/3/2/7/132740804/saxelapolox-razefasavaza-gijazapezag.pdfIn PDF document text
- http://files.mlmedicalsupplies.com/uploads/1/3/1/3/131384286/8693757.pdfIn PDF document text
- http://files.cdastudio.org/uploads/1/3/0/7/130739076/fuzomis-xunemipani.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/surorut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1218/4474/files/lobosepadaziwulutikibezu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0093/9164/files/xonefevaposapiwemewoxux.pdfIn PDF document text
- https://woxujobeza.files.wordpress.com/2020/07/kubarapasavavatarepiz.pdfIn PDF document text
- https://mutemoxapeko.files.wordpress.com/2020/07/3819347980.pdfIn PDF document text
- https://vekokipevi722356982.files.wordpress.com/2020/06/zujudodilerosasosokenus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6971/8176/files/1841102581.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6464/7077/files/85056963637.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0396/9689/files/rifefibalazi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4189/1238/files/saxatorovubuvoniremesiwa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7102/7865/files/xubiwapikosudibor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1631/4277/files/97272949525.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1141/5962/files/rupinatojilugenom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7565/6094/files/54306318844.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8070/3399/files/27969593030.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9581/0455/files/75456324313.pdfIn 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
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007aaf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AAF | 5440 bytes |
SHA-256: 85caf45850e2d4ed0f63270d1221b8d0411a1edc6bdcd00cfdc74debd484ac72 |
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font_01_sfnt_off00008d05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D05 | 10948 bytes |
SHA-256: 311838f3b6c0bed5a1012ed6a17bb52d3b171b1961d449128d62325064ed67d3 |
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