MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'Access database 2020 tutorial pdf', suggesting a lure. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.
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=access+database+2020+tutorial+pdf In PDF document text
- http://files.sungminrho.com/uploads/1/3/0/9/130969731/1e0363d.pdfIn PDF document text
- http://files.echoflowyoga.com/uploads/1/3/0/7/130776250/6638732.pdfIn PDF document text
- http://files.hannanicholeart.com/uploads/1/3/0/8/130874627/xawitide-simaretofumopu-tememiza-labikomovazude.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://jugafifider.files.wordpress.com/2020/07/71072913099.pdfIn PDF document text
- https://fezipok.files.wordpress.com/2020/06/58880480454.pdfIn PDF document text
- https://xudepojaj.files.wordpress.com/2020/07/nivazufitijemutogevinole.pdfIn PDF document text
- https://wedikul.files.wordpress.com/2020/06/kaxegalenasudep.pdfIn PDF document text
- https://rabedebeg.files.wordpress.com/2020/06/jemoxomosezakozezav.pdfIn PDF document text
- https://dixurozazix.files.wordpress.com/2020/07/kowomumereziduzupu.pdfIn PDF document text
- https://ratekoxon.files.wordpress.com/2020/06/87369024492.pdfIn PDF document text
- https://jekebizuwu.files.wordpress.com/2020/06/tulunebomonupera.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8360/4903/files/51220103530.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1434/8197/files/derujezijigoto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7992/4893/files/71255575792.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/64989875230.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dosoxuwananeworatimuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5537/3720/files/biropumalagubogat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3082/3583/files/67894539535.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78046530146.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4959/8632/files/82716162399.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_off00009676.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9676 | 5328 bytes |
SHA-256: a88aeba57cff0d9899489df3a8272edbf4c5f1f59461d032f8b1b52934f36443 |
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font_01_sfnt_off0000a894.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA894 | 9920 bytes |
SHA-256: 19b709c37b57bbfed24ff988fbbc292c461f1f1fdda6023ade600cd2c8081e0b |
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