MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains metadata suggesting it is presented as a handbook, likely to deceive users into clicking the malicious link. The ML classifier also strongly indicated maliciousness.
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=esmo+handbook+on+clinical+pharmacology+of+anti+cancer+agents+pdf In PDF document text
- http://files.blingattiphanys.com/uploads/1/3/1/1/131163846/8613768.pdfIn PDF document text
- http://files.crawfordcountysolidwaste.org/uploads/1/3/1/3/131383251/a7a8a64223a11.pdfIn PDF document text
- http://files.avonformwork.co.uk/uploads/1/3/1/8/131872137/kumajinosu_zuvalokinuva.pdfIn PDF document text
- http://files.prickwillowmuseum.com/uploads/1/3/2/7/132740480/texojibibazubevozim.pdfIn PDF document text
- http://files.bettyvaughan.com/uploads/1/3/2/8/132814261/723dd8d392881.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/1/0431/2717/7365/files/96736512016.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4982/9023/files/90401104859.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5486/6333/files/xipajazekonazeguladogiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44329390643.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9676/8665/files/doloviwagotul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2790/6206/files/biwosuzazibuvawumup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8852/7013/files/baregijawufokagigeji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0749/8647/files/bavejenebo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0923/6374/files/gogixilifuxijewub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2725/0848/files/wugugosexuxenulekiw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4141/4552/files/bodokinameba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9166/5830/files/nonovo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5492/3925/files/kubiwuzavebuzugid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5618/4992/files/91603536789.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_off00007953.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7953 | 5620 bytes |
SHA-256: dd7f6c072f2d08ba08df285a69dcc60210dd48a03e61fa6272fb85a339dda00d |
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font_01_sfnt_off00008c46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8C46 | 9936 bytes |
SHA-256: bc229b456b03ce6a6f1bb41c06cc47cb24900f6d62d7118f3a9dbec69e0b7e0f |
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