MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) known for malicious activity. The document body, though corrupted, contains the URL https://ttraff.cc/pify?keyword=numerical+mathematics+and+computing+solutions+manual+pdf, suggesting a lure to download a fake manual. The presence of numerous Shopify-hosted links, while some are benign, contributes to a link farm SEO strategy to obscure the malicious intent. No scripts were extracted, but the primary attack vector is the redirection to malicious infrastructure.
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/pify?keyword=numerical+mathematics+and+computing+solutions+manual+pdf In PDF document text
- http://files.postnco.com/uploads/1/3/1/0/131069764/1259597.pdfIn PDF document text
- http://files.gbwgrassseed.com/uploads/1/3/0/7/130739892/nodoju.pdfIn PDF document text
- http://files.christinefoghmusic.com/uploads/1/3/1/4/131438616/65ebc12f62.pdfIn PDF document text
- http://files.mtprospectlimo.com/uploads/1/3/0/7/130775098/bixigosutogiveg-satutazikigu-jiwufumowe.pdfIn PDF document text
- http://files.spinalunwinding.com/uploads/1/3/1/3/131398097/3746671.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/1/0434/8418/4728/files/mopalixobufutebogizopuvip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7207/0556/files/68523834955.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3806/5308/files/39661720092.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57790570823.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6716/2276/files/sotokoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8889/6415/files/85683851134.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1591/2098/files/mubasomubodalineb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7400/8741/files/html_doc_template.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/temufaxilagig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6056/0021/files/bijivebujetenilitom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8787/9580/files/ladagisaminidananupuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9758/7861/files/67033779945.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5788/0996/files/pamunipugodamevazubes.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_off00005193.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5193 | 4112 bytes |
SHA-256: 9a6e6a446db693f7c96855fe9daf23605a19d442d73f703ef9285d75e4ffae09 |
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font_01_sfnt_off00006054.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6054 | 5536 bytes |
SHA-256: ea35aaca1176c7a448d83205ef021fba54a69972cc077c2f9911b109bb49a672 |
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font_02_sfnt_off00007300.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7300 | 9984 bytes |
SHA-256: 0dd9e523ca7787619607a8c706a3f124b7c7f1b2aaa1144547066761265219c5 |
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