MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a mass of external links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm for SEO poisoning or traffic redirection. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=sample+donation+request+letter'. The document body also contains text consistent with a callback phishing lure, asking the user to call a number in a billing or refund context. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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=sample+donation+request+letter In PDF document text
- http://files.lehighvalleycorporatecleaners.com/uploads/1/3/0/7/130739401/tesax.pdfIn PDF document text
- http://files.zennergystudios.com/uploads/1/3/2/7/132741241/9589253.pdfIn PDF document text
- http://files.talkitupbendigo.com/uploads/1/3/2/3/132303024/6aaedacb189.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/1/0433/0687/7080/files/19490865332.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4470/9276/files/96972962730.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9128/7461/files/68898007128.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93515438816.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4329/9232/files/46072401778.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5259/6374/files/gavemasobafumanirilom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kevimofurerofujasopam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4104/6171/files/40361188306.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6732/6110/files/72076064009.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7829/5450/files/41851984417.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2520/3354/files/dafexawopilade.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1737/9745/files/pajarog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5122/1143/files/zoxajevorojozano.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7811/3690/files/lomosebefojotokabegedunil.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_off0000617f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x617F | 5336 bytes |
SHA-256: 30cf7e4466339c744dbf82cc54d3ca0be21431890176ab7b9e80f5b75bbbd511 |
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font_01_sfnt_off0000737f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x737F | 10260 bytes |
SHA-256: effe09c20d7c0bb810ca1facb25b45649e26581b17c0ed9ff4586264d1c93b4b |
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