MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many of which point to SEO-optimized content, suggesting a link farm designed to attract users. The primary redirector URL, https://baarspo.ru/wix?keyword=free+exam+p+study+manual, is identified as a lure for free downloads. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://baarspo.ru/wix?keyword=free+exam+p+study+manual PDF link annotation
- https://cdn-cms.f-static.net/uploads/4465555/normal_5fd86842cacc5.pdfIn PDF document text
- https://cdn.sqhk.co/dedogupazib/eL5Ij2V/savers_thrift_store_reviews.pdfIn PDF document text
- https://gizutiki.weebly.com/uploads/1/3/4/4/134478998/5342970.pdfIn PDF document text
- https://cdn.sqhk.co/sururezog/bp6kzcv/domino_games_online_with_friends.pdfIn PDF document text
- https://cdn.sqhk.co/gurudulep/adicwja/smash_ultimate_tier_list_maker_unblocked.pdfIn PDF document text
- https://cdn.sqhk.co/xumefotebe/1N5JozS/funny_exam_status_for_whatsapp_in_english.pdfIn PDF document text
- https://cdn.sqhk.co/feketukadoz/pjceCRQ/multiplayer_driving_simulator_unblocked.pdfIn PDF document text
- https://cdn.sqhk.co/kixituvelil/hahfvji/74238394629.pdfIn PDF document text
- https://zerimesatevig.weebly.com/uploads/1/3/4/8/134879836/nisafuvogo_mozurasuzigageb_bogexibegaf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476924/normal_600b4117ba932.pdfIn PDF document text
- https://cdn.sqhk.co/ganuniwiku/de1geke/super_jungle_adventure_2018.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460963/normal_601de56fdd32c.pdfIn PDF document text
- https://cdn.sqhk.co/jenetuwuda/icGiico/prestonplayz_logo_minecraft.pdfIn PDF document text
- https://cdn.sqhk.co/sozasusu/jeTjdgh/community_first_credit_union.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4390383/normal_5ff5812a653a5.pdfIn PDF document text
- https://cdn.sqhk.co/xuxofidipo/d6ihhij/laxijijagivasa.pdfIn PDF document text
- https://cdn.sqhk.co/webuzifinuno/qriaWjg/18278789717.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://bobupugarini.epizy.com/browsec_extension_for_google_chrome.pdfIn PDF document text
- http://mibofive.epizy.com/55482520104.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e94f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE94F | 4956 bytes |
SHA-256: 9aba0416f4a6fad9d6becb6f9de7aa8fb0df04b8d5d705800a43bbd03a76f3ce |
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font_01_sfnt_off0000fa11.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA11 | 10108 bytes |
SHA-256: d98b6f2e1f9cf57839b9fb9f5dd7b768f3ca36b308615bc52d6acd1f31ea2210 |
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font_02_sfnt_off00011cb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CB0 | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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