MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=chelating+agents+and+metal+chelates+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting it is a primary lure. The ML classifier strongly flagged this PDF as malicious, reinforcing the assessment of a malicious redirector or phishing attempt.
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=chelating+agents+and+metal+chelates+pdf In PDF document text
- http://files.yogakathryn.com/uploads/1/3/0/7/130775171/dixedupunatufudujiz.pdfIn PDF document text
- http://vevizev.merionmillhouse.com/uploads/1/3/1/4/131483154/volopepeb_kifejesapo_fexatopolazase.pdfIn PDF document text
- http://jewidir.kipandfriends.com/uploads/1/3/0/7/130776262/cee0976805fc.pdfIn PDF document text
- http://files.ukinvestmentstamps.com/uploads/1/3/1/3/131380354/1a2722e1.pdfIn PDF document text
- http://zuvoz.shopcharmhousedecor.com/uploads/1/3/1/3/131383664/jureru.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/1/0431/0571/4338/files/rapuvonasizipiza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1024/3230/files/98539794338.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2511/2994/files/80184533763.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6749/8911/files/90108618276.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5056/4773/files/dokomaxikef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7921/2960/files/sausage_party_full_movie_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pufabupenidobuxix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6785/9359/files/94389636383.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2360/4631/files/tenukivupatugewexixev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9200/0406/files/nilididiwodufebozedu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1977/9742/files/tivosilesitajibotes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7120/1695/files/77173131766.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6681/8721/files/kasakinomowojigamizis.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008bd2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8BD2 | 5376 bytes |
SHA-256: 3436f1a33a4de9d82d269414b9122b049552d47b0a3f2133d53f29664c670761 |
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font_01_sfnt_off00009df8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9DF8 | 15036 bytes |
SHA-256: cb458a61c696a6f5ccd78ec7d27eb06e1569ed47f50a6eb297a94b65a0974915 |
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font_02_sfnt_off0000cd30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD30 | 16396 bytes |
SHA-256: 593ff223002b46858d9ccb817f3a3baeae454b89d4dd5b9dfd3fb02882520774 |
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