MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains embedded links that redirect to malicious infrastructure, specifically a URL associated with a redirector. The document body, though heavily obfuscated, appears to be a lure related to software downloads. The presence of numerous external links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to attract victims. The ML classifier strongly indicated maliciousness.
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/wb?keyword=pdf%20xchange%20viewer%2064%20bit%20pl In PDF document text
- http://files.bluevalemusic.com/uploads/1/3/2/3/132302960/tukovopanul.pdfIn PDF document text
- http://files.whitestole.com/uploads/1/3/0/7/130739456/lagepumujajene-gered-padapimaj-bubow.pdfIn PDF document text
- http://files.briannaholt.com/uploads/1/3/1/3/131384583/jotelinitegexe.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/1/0430/6986/6141/files/surevopavalasenuxisevizi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1536/5031/files/1100067741.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0264/1059/files/36735364275.pdfIn PDF document text
- https://nutumomox.files.wordpress.com/2020/06/xegelolarisiwebumoter.pdfIn PDF document text
- https://segokowiw.files.wordpress.com/2020/06/49373850780.pdfIn PDF document text
- https://pixojixose.files.wordpress.com/2020/06/paxakijinizuwozikoz.pdfIn PDF document text
- https://rawuduged.files.wordpress.com/2020/07/48854049125.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7634/6266/files/51086421001.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5285/0586/files/jasogabonenabasiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0416/4257/files/81965122197.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0763/9711/files/jozufifutomesebupi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3957/2643/files/dumofefokap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6337/7048/files/24013837996.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5027/0869/files/2437095551.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/larabobed.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1955/8299/files/telofepubigukupefurufi.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_off00009a2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A2A | 5520 bytes |
SHA-256: d816abc38e8a36f7e10de88b94c2652b6d5b9ea242d7c69a1a6c29bd3a9fb0af |
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font_01_sfnt_off0000acf1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACF1 | 12848 bytes |
SHA-256: 6f8b5c6beb9333993e425c1564d34bfb2a5d8570dfc8bfd86aa6bce4bc0951ad |
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