MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to external resources, indicating a link farm. One of the primary links directs to a known malicious redirector, ttraff.ru, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains references to the redirector URL and other benign-looking URLs hosted on Shopify, suggesting a lure to disguise the malicious intent. The presence of numerous PDF links and a malicious redirector strongly suggests a phishing or redirection attack.
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.ru/pify?keyword=mumford+and+sons+believe+lyrics In PDF document text
- http://files.behindthebars.org/uploads/1/3/0/8/130814279/kuratamifobuwuw.pdfIn PDF document text
- http://files.fitupfabrication.com/uploads/1/3/1/4/131437474/jerafenawewiwubeper.pdfIn PDF document text
- http://files.kellytuckercreates.com/uploads/1/3/1/6/131637419/nunolabux_gotevupuw.pdfIn PDF document text
- http://files.futureprairie.com/uploads/1/3/1/4/131437725/porite.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/1/0431/7596/8928/files/17042273550.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7035/6637/files/39309231524.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4117/7248/files/63301044253.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9633/4753/files/49441028881.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gabagijujusudizal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39748763391.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3290/3829/files/25089503964.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5868/3291/files/18288123459.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3524/5216/files/50740760092.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5523/4710/files/53651906778.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2562/9347/files/18359370922.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6397/5835/files/jidexivuteg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/91960476686.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3123/2666/files/rolitezalojixogujuj.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_off00005ac7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AC7 | 5472 bytes |
SHA-256: 06f5903c1a4a85b09da948ecd1b1b99f21f2b6a74e980c5fc632cd34ed2eea2e |
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font_01_sfnt_off00006d64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D64 | 9924 bytes |
SHA-256: faeaaddebe1b2fc33c347397cf8e5981bcb01c81852d985b4fc86586cc4b0da0 |
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