MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external resources, a common tactic for SEO poisoning or link farms. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic, suggesting a lure related to 'skin cancer journal pdf'. No scripts were extracted from this sample.
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.com/pify?keyword=skin+cancer+journal+pdf In PDF document text
- http://files.oakparkbands.org/uploads/1/3/2/6/132695543/vonam.pdfIn PDF document text
- http://files.hereverydayrentalservice.ca/uploads/1/3/0/8/130813841/luluxalosaregaf_kodix_kipaworutefux.pdfIn PDF document text
- http://files.huntervalleypuppies.com/uploads/1/3/0/8/130873965/ba87f.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0430/6026/5117/files/plot_a_circle_in_matlab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9496/6436/files/43693726489.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5663/6828/files/59006133195.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6341/8784/files/law_of_cosine_formula.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0979/4463/files/66858570523.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3311/6315/files/dukedakuvej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2745/5400/files/mukubanikumumili.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7102/0954/files/36832065805.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0844/0995/files/50595984991.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/3415/7991/files/81040329386.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6277/1358/files/sanenipugiregudimakexu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7329/7814/files/suwobizidolapekeviw.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007fee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FEE | 5016 bytes |
SHA-256: be08f09593132c414b304056b569f36daf0c5a502d60a80590ee60cdac05ec6f |
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font_01_sfnt_off000090f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x90F8 | 11732 bytes |
SHA-256: 02dbe0727be353028b77d909be8b616975c33d3676c8389c4e8a443ba2087d6a |
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font_02_sfnt_off0000b75c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB75C | 16204 bytes |
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15 |
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font_03_sfnt_off0000cc8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC8A | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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