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 a redirector service (ttraff.cc) that is known to host malicious content. The document body, though heavily obfuscated, appears to be a lure related to academic papers, likely intended to trick users into clicking the malicious links. The heuristic firings confirm the presence of a malicious redirector and a link farm.
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=karl%20barth%20church%20dogmatics%20pdf In PDF document text
- http://files.palouserivercounseling.org/uploads/1/3/0/8/130813834/sosolasunewod.pdfIn PDF document text
- http://files.terroirs-du-monde-education.com/uploads/1/3/1/4/131406606/600441c9.pdfIn PDF document text
- http://files.paynesculptures.com/uploads/1/3/1/4/131410818/dokobezasaxugegenit.pdfIn PDF document text
- http://files.cthorwigs.com/uploads/1/3/0/8/130814586/9029941.pdfIn PDF document text
- http://files.gcrpc.org/uploads/1/3/0/8/130874058/padupok-pogib-gegipupemobeno-dasaxiralif.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/1/0435/6440/0798/files/giwisa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7235/4459/files/96420889628.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7039/8372/files/reluzerufamejipasadoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1566/6849/files/garigav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5689/0013/files/nusirotixosob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4899/2930/files/wosijikufajija.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1218/5499/files/wukobinanoruxuvurav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3631/8616/files/65106553109.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5888/6806/files/78089704635.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9314/8313/files/xexumixol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8840/2839/files/durasuxijaxilikivokusido.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4424/9499/files/lavafexidobilosesovojew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7557/5709/files/zubadugevumitejajini.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2670/1726/files/87483749318.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
🗂 Part of campaign:
cthorwigs.com
3 samples
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007723.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7723 | 5336 bytes |
SHA-256: f0035375a8f969811ae33d2004f5f4423cd9cc9401fd32db65675154c94b6c67 |
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font_01_sfnt_off00008944.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8944 | 10004 bytes |
SHA-256: b5107ce81ec9d8c185a78bd8731e71c04415b377ea120beb7bef288470fe6257 |
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