MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, a common tactic for SEO spam and phishing. The heuristic PDF_SEO_LINK_FARM and PDF_SEO_UTM_REDIRECTOR_LINK indicate a large number of links pointing to external sites, with one prominent URL being https://golowaki.ru/wix?keyword=bits+bytes+and+bots+summer+camp. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
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://golowaki.ru/wix?keyword=bits+bytes+and+bots+summer+camp PDF link annotation
- https://static.s123-cdn-static.com/uploads/4483070/normal_5ffc104684c45.pdfIn PDF document text
- https://s3.amazonaws.com/kotidox/82542785611.pdfIn PDF document text
- https://s3.amazonaws.com/tuxenipup/7th_grade_math_test_with_answers.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475854/normal_602ebb730684c.pdfIn PDF document text
- https://s3.amazonaws.com/zidenigad/ipcc_special_report_climate_change_and_land.pdfIn PDF document text
- https://s3.amazonaws.com/jewizopukuni/dell_m6800_battery_not_charging.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4374976/normal_5ffec37e28b4f.pdfIn PDF document text
- https://s3.amazonaws.com/farowug/39873374951.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4414868/normal_602b2c3c0fd19.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389394/normal_601ff78113a25.pdfIn PDF document text
- https://s3.amazonaws.com/gelawiweza/beep_beep_alarm_ringtone.pdfIn PDF document text
- https://s3.amazonaws.com/guxosa/bob_books_set_1_beginning_readers_free_download.pdfIn PDF document text
- https://s3.amazonaws.com/jevelel/miranerujovugive.pdfIn PDF document text
- https://s3.amazonaws.com/nawosineromigi/the_african_origin_of_civilization_chapter_3_summary.pdfIn PDF document text
- https://s3.amazonaws.com/fibesezati/pufojizo.pdfIn PDF document text
- https://s3.amazonaws.com/wizakokowe/40241401951.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4403129/normal_5fe5e8a5021a9.pdfIn PDF document text
- https://s3.amazonaws.com/lusegokaves/fubitafuviwapaxivolibi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485305/normal_6018edfbc66ac.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://ff9dba89-6132-4485-99c2-ace8a2453124.filesusr.com/ugd/c3f59f_cc51924f02304f41ab2a291306ef0737.pdf?index=trueIn PDF document text
- https://80c8fd16-4cf8-4f9f-b52b-d6c956df8f3b.filesusr.com/ugd/1a94e8_121c9f1674054859be000bdc0e8eaca4.pdf?index=trueIn PDF document text
- https://71b4061d-0fbe-47a8-a671-08758978b022.filesusr.com/ugd/0216f2_3359e10c71124b9c85658ef6e07dd1f8.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_off0000ea04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA04 | 5476 bytes |
SHA-256: 94fe0371df4e5567d61a5effaa4b74a49507ca8ec02b668ad71a7f0a75104306 |
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font_01_sfnt_off0000fc91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC91 | 12504 bytes |
SHA-256: 4953ea67bc4a151dcdf475599903c672118f622204c4de59cca3c28b8d15c611 |
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