MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious due to a high number of embedded links pointing to external resources, characteristic of a link farm. One critical heuristic identified a link to a known malicious redirector infrastructure. The document body contains text related to 'key informant interview questions community assessment' and metadata indicating it was generated by wkhtmltopdf, suggesting a potential lure for users seeking information. The presence of numerous shopify.com URLs, some marked as benign, alongside unknown domains, indicates a broad distribution strategy.
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=key+informant+interview+questions+community+assessment In PDF document text
- http://vakonow.doublejoutfittersny.com/uploads/1/3/1/6/131606271/2717341.pdfIn PDF document text
- http://files.jjsdeepcreektubes.com/uploads/1/3/1/8/131871569/mifiw.pdfIn PDF document text
- http://dorev.mwenya-uganda.org/uploads/1/3/2/7/132740449/f01c0271.pdfIn PDF document text
- http://files.spartanburgrepertory.com/uploads/1/3/2/6/132681836/3615501.pdfIn PDF document text
- http://files.eogburn.com/uploads/1/3/2/3/132303175/xepagaminozuzu-xesasataguwidun.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/1/0430/3847/4397/files/4086456700.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9181/2767/files/gimifofe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6955/4329/files/jakavevekit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6971/8182/files/peptic_ulcer_disease_pathophysiology.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7426/4996/files/rodijuvudomen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8514/3965/files/ejercicios_bisectriz_y_mediatriz_6_primaria.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0463/3952/2717/files/47563579438.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8714/3839/files/21986391423.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2806/7990/files/64055807931.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8457/0019/files/9609827834.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5452/1758/files/online_payment_form_template_html_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8648/7455/files/communist_anime_girl.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000069a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69A8 | 5224 bytes |
SHA-256: a8b03c871b5d2459514837eb7d46cc95a92a0b877ebd95694dea2c4cf0f4384b |
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font_01_sfnt_off00007b77.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B77 | 9988 bytes |
SHA-256: 9bbb0cf93232f7cff3911599ad38ed2c31ec118b843c3b3bfe651abc2107d366 |
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font_02_sfnt_off00009d2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9D2E | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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