MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, indicating a link farm. The primary malicious URL identified is `https://ttraff.ru/pify?keyword=bayesian+classifier+pdf`, which is likely used to redirect users to a malicious destination. The document body contains obfuscated text and embedded URLs, further supporting the malicious intent.
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=bayesian+classifier+pdf In PDF document text
- http://files.rebeccathompson.ca/uploads/1/3/2/8/132814476/dopifowetazusumum.pdfIn PDF document text
- http://fupik.lifeworksgym.net/uploads/1/3/0/7/130739892/magafelujig.pdfIn PDF document text
- http://files.silkysbrooklyn.com/uploads/1/3/1/8/131871633/xepegof_jugekedovelosej.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0433/5806/0703/files/scott_foresman_science_grade_1.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5603/7017/files/tirurefixomuzawevin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0673/6037/files/86791672982.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6980/8548/files/jejaxusumagozuzumin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1805/8901/files/naketa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/0954/3077/files/budget_making_process.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2750/4024/files/10541007144.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4447/0933/files/88222877644.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/8987/5364/files/90875677097.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zijilo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0733/6857/files/50365568547.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2381/1239/files/mogobigovududobutokuguza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6363/1272/files/mivoralepolegubud.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_off000079dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79DD | 4896 bytes |
SHA-256: f7085ee332bc58454d6596255c733c973904023154c1800dfbe6aeb87f12ae5d |
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font_01_sfnt_off00008a8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A8A | 14416 bytes |
SHA-256: 081d6d3ecbef0f887a09137cd1502d639f945ef321bc346bf672ea72fd05234e |
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font_02_sfnt_off0000b7ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7CE | 16076 bytes |
SHA-256: 5617ec9627a8ab3ec6258a90d9208e20427de2a6b8b5195bb6b34d6d8d69fe18 |
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font_03_sfnt_off0000cc7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC7C | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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