MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, including a critical link to a known malicious redirector at 'ttraff.ru'. The document body, though corrupted, contains text related to 'Vernier caliper practical pdf', suggesting a lure to disguise malicious links as legitimate content. The presence of numerous links, many hosted on Shopify, indicates a link farm designed to distribute traffic to malicious sites.
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=vernier+calliper+practical+pdf In PDF document text
- http://files.chsvideo.com/uploads/1/3/1/4/131437410/wavelidekimanutexu.pdfIn PDF document text
- http://musawe.kathaleenkateoliverson.com/uploads/1/3/1/4/131452883/6217003.pdfIn PDF document text
- http://jirupu.sgttommyskids.org/uploads/1/3/1/4/131454012/getudumunobumu-xojerotiganenu-jejiwam-doxujefozi.pdfIn PDF document text
- http://files.feelartmaster.com/uploads/1/3/2/7/132711961/bd326634a0b5.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/1/0432/6660/5219/files/17901931667.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8638/0197/files/sudo_spctl-_master-_enable.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2304/6568/files/mufuvesirigif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8993/5003/files/kekofikuvob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3624/5142/files/makkar_ielts_speaking_download_may_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0342/8510/files/32474024842.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8001/5271/files/15369473923.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6885/8280/files/fosizawit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0621/4819/files/ganonisibowos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0727/0297/files/world_religion_and_belief_system.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5446/5175/files/xemeketekuvupe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7128/4135/files/widaxixon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6410/5886/files/wojesilapidan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4166/7734/files/what_is_convenience_sampling.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1574/0312/files/translating_words_into_algebraic_expressions_worksheet.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_off00006988.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6988 | 4936 bytes |
SHA-256: 743a8ccf529ea695e6b7f077b561d4d61dbfd5e5a83865fcd7d9c3e60ee416ad |
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font_01_sfnt_off00007a6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A6A | 10356 bytes |
SHA-256: d7216af1571a07c3c512e48c4fe3142df3cf10a0841b9289df6df18dda176b73 |
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