MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link directs to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the URL for the malicious redirector and several other PDF files, suggesting a lure to download further malicious content. The presence of numerous external links indicates a strategy to distribute malicious payloads or phish for information.
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=chat+alternative+app+free In PDF document text
- http://files.awhillans.com/uploads/1/3/0/8/130873781/fa6d13970d3.pdfIn PDF document text
- http://zitagiwe.firstlutheranpreschoolec.com/uploads/1/3/0/7/130738721/fagagijarasi.pdfIn PDF document text
- http://files.lukalahfarm.com/uploads/1/3/1/4/131409442/nugojederefa_bupebijefazix_dopijon_tabolutap.pdfIn PDF document text
- http://files.12monthbeauty.com/uploads/1/3/0/8/130874128/6301925.pdfIn PDF document text
- http://files.jamestowneducationfoundation.org/uploads/1/3/0/7/130738889/wegeravuwub.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/1/0430/2936/4889/files/plural_of_rhino.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0001/0664/files/34409950720.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3770/4867/files/91348788613.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0255/2742/files/wesepawinumunujopolavef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0877/0726/files/sopuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9201/7305/files/la_cabala_y_el_tarot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/4350/9656/files/encoding_and_decoding_huffman_code_in_java.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0533/0083/files/nezeselobalapowir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6591/5045/files/relod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5744/6038/files/fovubasu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7047/9768/files/duxusubukodumafugi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6889/1040/files/tovosusobedopebetoteni.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/0979/1384/files/moreover_furthermore_in_addition_exercises.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_off0000676f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x676F | 4776 bytes |
SHA-256: 455245a5a131338f3ca9a7c5a15aa2af4b9dba737aa40ea0d707d7fe4c0feb53 |
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font_01_sfnt_off000077ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77AE | 9888 bytes |
SHA-256: dfd41f714793b6bcb0cfb4579c636f200bb5c3a1c500b5c9035ca33add8d19b8 |
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