MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a link to a known malicious redirector, ttraff.cc, disguised as a service manual download. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and a date, suggesting it was generated programmatically. The presence of numerous links to external PDFs, many hosted on Shopify, indicates a link farm or SEO poisoning attempt to drive traffic to malicious sites. The primary malicious IOC is the redirector URL.
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.cc/wb?keyword=honda%20astrea%20grand%20service%20manual%20pdf In PDF document text
- http://files.bafwv.org/uploads/1/3/2/6/132681660/latuxesi.pdfIn PDF document text
- http://files.rare-prints.com/uploads/1/3/1/3/131383456/5926186.pdfIn PDF document text
- http://files.oxfordcountyanimalrescue.com/uploads/1/3/2/7/132710601/1263078.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/1/0431/7400/2848/files/wutuwolebuluwe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5621/5702/files/tools_of_data_analysis_in_research.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3986/7559/files/2526500630.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9117/3278/files/gelaxakakodu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1080/8217/files/60581021505.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4447/0945/files/radial_nerve_examination.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7507/5225/files/prioritization_delegation_and_assignment_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6764/5852/files/fakamazanexodawe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0902/2886/files/ziwat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0015/8629/files/towebomoxorafem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74808095599.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1381/5966/files/larivituzunotifazi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dekafarisajanitid.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_off00004c46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4C46 | 3312 bytes |
SHA-256: ac66ddecb1889e99694234647e4a1e19b6174440e696c9ee44c6cb9711419273 |
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font_01_sfnt_off00005827.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5827 | 5496 bytes |
SHA-256: f8f6eb009a013ab99f903c665b492f0516f1fade90716404c9895a92f07294d7 |
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font_02_sfnt_off00006aca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6ACA | 9988 bytes |
SHA-256: cba5cad91c0a87fb2822db35051a984cf1f6abcfaf5aece0b77ef01844b3aef8 |
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