MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://druttle.ru/strik?utm_term=how+to+use+advent+calendar+2020 PDF link annotation
- https://cdn.sqhk.co/wujozuzewed/cTghpGB/bluescope_steel_ltd_annual_report.pdfIn PDF document text
- https://cdn.sqhk.co/dakuwuwuzije/BR05ugg/5017909074.pdfIn PDF document text
- https://cdn.sqhk.co/sedazozesufu/jhVhhgq/72043085279.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379233/normal_5fd12707e569a.pdfIn PDF document text
- https://cdn.sqhk.co/kitujesijak/dgcjagh/strikemaster_ii_french_door_reinforcement_kit.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388060/normal_5fd6e293ed9ac.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387932/normal_60072003caab8.pdfIn PDF document text
- https://cdn.sqhk.co/jonuwezipagi/cjdpgd6/starlink_release_date_canada.pdfIn PDF document text
- https://cdn.sqhk.co/ronelejibir/iixUgg2/3247559534.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/6954dc6b-282d-4551-80cc-e3bcbbedbd2c/what_is_supplement_theorem.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e1c2f8aa-f50a-4235-8ca5-217da7c176c8/soluwegot.pdfIn PDF document text
- https://s3.amazonaws.com/wefemabeni/pisixa.pdfIn PDF document text
- https://cd489911-dc6d-4439-b408-84622343fb93.filesusr.com/ugd/d8e941_fd23700072a041d2b8f3ef481597a157.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wolawatin/vamuzadobugemiz.pdfIn PDF document text
- https://7ef7ebf0-bcb0-4ca2-8538-5a19c3e9f01c.filesusr.com/ugd/aff7ca_233f35017e064e1897d1085da5d2c722.pdf?index=trueIn PDF document text
- https://4ef57e19-9a2e-4e6f-a444-f6b59f982a39.filesusr.com/ugd/4c1554_96caf77f2d6e46e6b836301cd1563d21.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/ef3cb4ba-94aa-43fc-ba62-74d85577880e/66484316285.pdfIn PDF document text
- https://bb55feb6-a0c4-48ae-8f72-aea2c45912f8.filesusr.com/ugd/b9801a_c7b6b757c685415298a10e6c91a6aa65.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/fenatagazise/r_shiny_cheat_sheet.pdfIn PDF document text
- https://f3874c2d-c116-49c2-b7b6-9300dc8fc43e.filesusr.com/ugd/b11f6d_b88ce2359530404986232bace1809e6e.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_off0000eada.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEADA | 5320 bytes |
SHA-256: c2e4a91e8691770e7d41b7aa9a2ca3ab8bc96fb1d06980115e8c02d6e9d5049b |
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font_01_sfnt_off0000fd13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD13 | 11508 bytes |
SHA-256: 71ae65a98d179c8070df803862d81e469dd4fe1009c821417871ab12d7576b44 |
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