MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous links, many of which point to external PDF files hosted on various domains, suggesting a link farm for SEO manipulation or traffic redirection. One critical heuristic identified a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure, disguised as educational content. This indicates a social engineering attack aiming to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
-
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.
-
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.
-
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.
-
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.
-
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=all%20formulas%20of%20current%20electricity%20class%2012%20pdf In PDF document text
- http://peteguku.tnetech.com/uploads/1/3/1/1/131164278/gaxizase.pdfIn PDF document text
- http://files.samhoughtonchallenge.co.uk/uploads/1/3/0/7/130776817/betine.pdfIn PDF document text
- http://files.parkerconverse.com/uploads/1/3/1/3/131379280/bd9bb.pdfIn PDF document text
- http://files.tristaricelandics.com/uploads/1/3/0/8/130813416/675674.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2174/6847/files/loragixadekefutag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8823/0053/files/rezitewikiwupebop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4504/4892/files/protected_area_definition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5045/1623/files/corazon_de_nio.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9550/7622/files/vodegu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1320/9246/files/30562709357.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/3564/4319/files/data_center_management.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2875/0241/files/zudoramupugofimip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0004/5465/files/77560907085.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000079b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79B7 | 5576 bytes |
SHA-256: bf37f1992bb25240894051f49fb223724403f601502d3ee27510516e756f156b |
|||
font_01_sfnt_off00008ca1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CA1 | 10752 bytes |
SHA-256: a88dc0b4de2c9ee3c630125ea67d8ce93df3fd08aafb518658ee2bddeb349435 |
|||
font_02_sfnt_off0000b10c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB10C | 16192 bytes |
SHA-256: 2fbb528c30fae61c70ff4082faa5fece981988df10abad1a91cab371b780b9de |
|||
font_03_sfnt_off0000c674.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC674 | 4048 bytes |
SHA-256: c6b59e4a8815360c71291c00df27e53daae0eb8d3a5cb98a1e9f2657902e5332 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.