MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF document contains a lure to install a browser extension, which is a common social engineering tactic. It also contains a link to a known malicious redirector, ttraff.ru, which is used to deliver further malicious content. The document body itself contains numerous links to external PDFs hosted on various domains, likely part of a link farm to improve search engine ranking for the lure content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
-
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.
-
Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
-
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/pify?keyword=algorithms+4th+edition+by+sedgewick+and+wayne+pdf In PDF document text
- http://kosupise.stridesports.net/uploads/1/3/1/4/131406717/3190948.pdfIn PDF document text
- http://files.jeffcolibraries.org/uploads/1/3/1/3/131381612/e283339.pdfIn PDF document text
- http://biluf.elkrapidsnews.com/uploads/1/3/1/4/131407995/zuzodinej-sewirilo.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/1/0438/3725/9938/files/worifoluwi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9923/5228/files/6095511925.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1945/3095/files/jpg_to_app.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7375/7603/files/23828364788.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8198/2361/files/95367968473.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2578/3190/files/sonegowabe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2391/7478/files/wavozix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8124/4577/files/1000_ways_to_die_full_episodes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1075/2663/files/58875904882.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4511/0438/files/bekason.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1620/9059/files/81458337329.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6375/3369/files/13.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8678/2369/files/51383564443.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4024/2840/files/76489968659.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_off00006d5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D5F | 6044 bytes |
SHA-256: b4b4486ed1ffaf8d56ee137db88548878e57b4c5903666f89f8caa26f15128bc |
|||
font_01_sfnt_off000081e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x81E9 | 10696 bytes |
SHA-256: e30d3e983f7106ac1e527981b6735873c82ec7d3f88b4e3808604a10cb7eb7cd |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.