MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains embedded links that redirect to malicious infrastructure, masquerading as a free PDF compression tool. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests SEO poisoning tactics to lure victims. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a phishing or redirection attack.
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=compress+pdf+file+to+smaller+size+online+free In PDF document text
- http://sejux.coastalretreatsdevon.com/uploads/1/3/0/7/130775934/aa66f.pdfIn PDF document text
- http://mukuvadop.ambersballoons.com/uploads/1/3/0/7/130776542/7279664.pdfIn PDF document text
- http://files.dance4him.org/uploads/1/3/0/8/130814588/rujiz.pdfIn PDF document text
- http://files.gingermarketinghq.com/uploads/1/3/2/7/132740439/xeforu_tukoganoruxemuw_rejepogamoneze_timitukaxapus.pdfIn PDF document text
- http://files.crossroads-university.com/uploads/1/3/1/4/131453260/rabarunuwunip.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/1/0428/3210/1543/files/57559638642.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0436/2906/files/onyxia_quest_chain.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1620/8036/files/16099524874.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2865/9870/files/tativebutemuzapujijuga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1058/7800/files/xotivifonimadobosa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0718/6843/files/19958395662.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2550/6208/files/mtbf_mttr_availability_calculation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4996/6998/files/nuxomudisolukutedetizana.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8027/8426/files/96751204207.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0512/4516/files/95078339386.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9067/1771/files/standard_def_resolution.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6913/6280/files/cracking_the_code_interview.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9183/6566/files/autonomous_vehicle_system_architecture.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7274/8710/files/sosamovasakitokerelusul.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_off00006958.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6958 | 5144 bytes |
SHA-256: 6e3cf9963781c4d2d04a53392512015a1aba760e76bce9a1e479cd5b53302603 |
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font_01_sfnt_off00007abf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7ABF | 10556 bytes |
SHA-256: 98eea7b9bc1af5b78d3c898bf9f256893727edb300630e75e84a906ccc2a4c5d |
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