MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm for SEO manipulation or to obscure malicious redirects. One critical heuristic identified a direct link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=a+doll%2527+s+house+guide+book'. The document body, though heavily obfuscated, contains this same URL and other PDF links, reinforcing the lure. The presence of a 'download button' heuristic further supports the social engineering aspect of this attack.
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.
-
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
-
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=a+doll%2527+s+house+guide+book In PDF document text
- http://files.milev.hu/uploads/1/3/1/4/131406437/lixelekaves_nalimujejano_xuvofuk_poxogitikajifa.pdfIn PDF document text
- http://files.944fest.com/uploads/1/3/1/8/131871627/4444445.pdfIn PDF document text
- http://files.studentprivacy.org/uploads/1/3/0/7/130776406/baxubikiv.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/1/0435/0597/5462/files/palerewi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3797/2897/files/game_changers_book_report.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4015/3505/files/43713710697.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0502/4168/files/anand_kumar_super_30_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9432/7961/files/ohio_general_warranty_deed.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1559/4393/files/66008535084.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7577/1304/files/xozov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0374/8247/files/beats_studio_3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5907/5477/files/after_effects_keyboard_shortcuts_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8403/6761/files/26687210488.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7691/8175/files/vapilidira.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2020/5726/files/86700795772.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_off00006be8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BE8 | 5008 bytes |
SHA-256: 4f7e3da0cdf7342c86a17ffb16672355196a68b92babf844e22adf91a9bc67d0 |
|||
font_01_sfnt_off00007cf7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CF7 | 10128 bytes |
SHA-256: 202b1e3f07b278c2ec754c095220cf2d0e1918fa6b46ea9a0243bf46cf6705f7 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.