MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many of which are SEO-optimized and redirect to potentially malicious sites, as indicated by the PDF_SEO_LINK_FARM and PDF_SEO_UTM_REDIRECTOR_LINK heuristics. The primary malicious URL identified is https://gimoguvi.ru/123?utm_term=belfast+city+airport+arrivals+information, which is likely used for phishing or to host further malware. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://gimoguvi.ru/123?utm_term=belfast+city+airport+arrivals+information PDF link annotation
- http://instapresent.site/48730277634zyoqy.pdfIn PDF document text
- http://ita-yog.space/forumufidaguwoje80hgb.pdfIn PDF document text
- http://prequester.online/39296498849hm577.pdfIn PDF document text
- https://cdn.sqhk.co/wimiwupo/fGUgIgf/police_pursuit_tire_grappler.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418987/normal_601cd1ab62966.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485702/normal_6039c40368744.pdfIn PDF document text
- http://handler-autoscout24.com/2015_ashrae_handbook_hvac_applicationszysfc.pdfIn PDF document text
- http://consequences.space/xafasuwijubovifempoo.pdfIn PDF document text
- https://cdn.sqhk.co/ramejolir/hgcKrhe/print_email_iphone_epson_iprint.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/kovozenamofox/votefol.pdfIn PDF document text
- https://s3.amazonaws.com/jagux/rutezakumizixiban.pdfIn PDF document text
- https://s3.amazonaws.com/gomakobez/12437264474.pdfIn PDF document text
- https://s3.amazonaws.com/sasufufa/gymnastics_score_sheet_template.pdfIn PDF document text
- https://s3.amazonaws.com/jovekus/chhath_puja_song_dj_shashi.pdfIn PDF document text
- https://s3.amazonaws.com/kodipopujufipig/14314278137.pdfIn PDF document text
- https://s3.amazonaws.com/topipovikapari/junuwogetixepum.pdfIn PDF document text
- https://s3.amazonaws.com/wuxupewu/35415534954.pdfIn PDF document text
- https://6a543b89-810f-4a07-932c-4cc129fc401a.filesusr.com/ugd/1e5726_2f521505eae546498fa6e16a621eaa59.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/novifamigot/free_bootstrap_template_for_home_page.pdfIn PDF document text
- https://s3.amazonaws.com/wiwuxot/siset.pdfIn PDF document text
- https://43dda2ad-fadc-418c-a2d5-4b96cca2ed60.filesusr.com/ugd/6eca9c_d17bdcf7656247f0bb4de59dc62d3f61.pdf?index=trueIn PDF document text
- https://5e54824a-8208-41b0-8aeb-7c017e8cfb46.filesusr.com/ugd/f64db8_07ffb3ffd6fc4487a7ed79534ba2f516.pdf?index=trueIn 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_off0000ef09.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF09 | 5372 bytes |
SHA-256: 41ec042b667ad6aa8d3af3be17fe9f50fa35c7c67c301192e99cf5911d8d78be |
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font_01_sfnt_off00010150.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10150 | 12320 bytes |
SHA-256: ad0b03bf0a5bc806821bcef49e39dacc58a089c8fa8f11d9d7a392dab1fceb41 |
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