MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru', which is used in a link farm to disguise the malicious intent. The document body, though heavily obfuscated, contains the same URL and keywords related to 'pc app store free', suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, further supports the link farm tactic. No scripts were extracted, limiting the analysis of direct execution capabilities.
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=pc+app+store+free In PDF document text
- http://files.hfscounseling.com/uploads/1/3/0/7/130775465/2054505.pdfIn PDF document text
- http://files.hannahviera.com/uploads/1/3/2/8/132814306/sugavesox_livoz.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/1/0434/2503/8498/files/bodogexisedepezunazaxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1538/6789/files/comparative_irregular_adjectives_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9907/8299/files/nulodomufazojevemivaxam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3237/8517/files/93952243708.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2702/9400/files/cell_structure_and_function_test.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6086/9785/files/academic_writing_and_composition_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2537/3083/files/printable_brain_teasers_worksheets_with_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kilezibuvi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2562/8327/files/bon_de_livraison_excel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9309/0714/files/kudojiwu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0846/6845/files/79565537276.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0524/5597/files/nisamuwazekokatisinebit.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_off0000787f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x787F | 4612 bytes |
SHA-256: dc29a93d756b80fa21043be31ac24b8c05c8c186ada9025388d3ec42a3b7a956 |
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font_01_sfnt_off0000882d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x882D | 10336 bytes |
SHA-256: e525763e4a748111f7f10220210f7f5fd70b156f5b6b70acdae0879b4859ac35 |
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font_02_sfnt_off0000ab8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAB8F | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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