MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, many of which are part of an SEO link farm designed to redirect users. One prominent URL, 'https://kuzutuzo.ru/strik?utm_term=how+much+can+i+make+to+qualify+for+snap', suggests a lure related to financial assistance or benefits, a common phishing tactic. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or a trojan downloader.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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External URI info PDF_URIPDF contains an external URL action
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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://kuzutuzo.ru/strik?utm_term=how+much+can+i+make+to+qualify+for+snap PDF link annotation
- https://lepovomika.weebly.com/uploads/1/3/4/7/134701686/186480.pdfIn PDF document text
- https://buzomuzugagi.weebly.com/uploads/1/3/4/3/134313884/naneme-lefebefezefumes-gowesej.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4373505/normal_5fe4e7f8ede57.pdfIn PDF document text
- https://janepowowufevi.weebly.com/uploads/1/3/4/5/134506071/1880401.pdfIn PDF document text
- https://devumevone.weebly.com/uploads/1/3/4/5/134589636/valopuvafo_fumojexap_tamimoxiwixil_dakerepitugo.pdfIn PDF document text
- https://fefosixofenovi.weebly.com/uploads/1/3/4/7/134755919/baroxaz_nuratifeponolaw_sefirizoretugex.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4409797/normal_5fcb8f7824f5e.pdfIn PDF document text
- https://josabinisepev.weebly.com/uploads/1/3/1/4/131452942/pawipovujusasub-nosatixizore-zobofedo-vawabiged.pdfIn PDF document text
- https://lakofanagobogan.weebly.com/uploads/1/3/5/3/135386994/f9fedbef0e.pdfIn PDF document text
- https://palajuwasodix.weebly.com/uploads/1/3/2/8/132815908/131a71cf0cbda6.pdfIn PDF document text
- https://sukizasatesez.weebly.com/uploads/1/3/4/6/134686833/7b645ed83b3d8.pdfIn PDF document text
- https://desakawof.weebly.com/uploads/1/3/4/7/134705456/4877014.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/radubozufiwo/baillie_gifford_co_limited_annual_report.pdfIn PDF document text
- https://s3.amazonaws.com/pibabopuduj/acronis_2014_bootable_iso.pdfIn PDF document text
- https://s3.amazonaws.com/kitakilesa/42584121369.pdfIn PDF document text
- https://s3.amazonaws.com/zevutebulaworel/guwuwoka.pdfIn PDF document text
- https://s3.amazonaws.com/xuxifuzituwu/congenital_heart_disease_guideline.pdfIn PDF document text
- https://s3.amazonaws.com/bajapovogam/guild_wars_2_necromancer_build_guide.pdfIn PDF document text
- https://s3.amazonaws.com/wuzalugiseto/49806260225.pdfIn PDF document text
- https://s3.amazonaws.com/sepovutapakogaf/17615721948.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_off0000fc02.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC02 | 5600 bytes |
SHA-256: 5995827c81d60e77776c68934a0db0e0cac672091c2357c1e8501b39947eb141 |
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font_01_sfnt_off00010f00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F00 | 11208 bytes |
SHA-256: b133f0803521f8195e42071a848140db62e5fd32ec4b4fd1070b102576463928 |
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