MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at `https://ttraff.ru/pify?keyword=altium+designer+viewer+pdf`. This suggests the document's primary purpose is to redirect users to malicious infrastructure. The document body, though heavily obfuscated, contains references to 'Altium designer viewer pdf', indicating a lure to disguise the malicious intent. No scripts were extracted, and the PDF structure itself is the primary vector for the 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.ru/pify?keyword=altium+designer+viewer+pdf In PDF document text
- http://telefa.avensys.co.kr/uploads/1/3/1/8/131856917/nowegirukamux-logesezavug-rinutodu-rapiza.pdfIn PDF document text
- http://files.flamintips.com/uploads/1/3/1/3/131380213/lurarozesabos-danisebikivefe-xopexogabimazos-zufasatesizibe.pdfIn PDF document text
- http://files.riverqueengreens.com/uploads/1/3/1/8/131872298/1d09824fc.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/1/0438/9833/9496/files/antigone_paul_roche.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9983/0952/files/the_cartoon_introduction_to_statistics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6690/1148/files/624351082.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6050/1407/files/alternative_therapies_in_health_and_medicine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6302/5559/files/barricades_mystrieuses.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5307/2022/files/jirijerukanaxo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5564/3813/files/26034853504.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6356/5718/files/gipisotodivefo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7539/3944/files/never_gonna_stop_singing_lyrics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7178/9469/files/institutional_ownership_capital_structure_and_firm_performance.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9579/3568/files/20758364377.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7131/5876/files/zinc_plating_process_flow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1097/4108/files/26365701308.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2603/9463/files/72248573108.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_off00006979.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6979 | 3308 bytes |
SHA-256: bd251c4fe7b76216701b1c126905525d5d70db27517b00abe654639eebc9e123 |
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font_01_sfnt_off00007544.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7544 | 5292 bytes |
SHA-256: 4342f70652438098ca896bee83e769a8ea70b327f29e3a0e6da5c5d0bd1d116a |
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font_02_sfnt_off00008749.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8749 | 9968 bytes |
SHA-256: 1714ef203c9fb891ad21422f6e625c927ed66c43274614c520aeaa7afa5d272a |
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