MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm with numerous external URLs. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, suggesting an attempt to direct users to potentially malicious sites. The presence of external URIs and a link farm points towards a phishing or malware distribution scheme.
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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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://golowaki.ru/strik?utm_term=lenin+and+philosophy+and+other+essays PDF link annotation
- http://fumigatoff.online/3544907222661cq8.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4499635/normal_5ff544bd15052.pdfIn PDF document text
- http://cleaner360.shop/is_a_cool_mist_humidifier_good_for_dry_eyesjg54b.pdfIn PDF document text
- http://jutidewolojura.mypressonline.com/3_phase_induction_motor_wiring_diagram.pdfIn PDF document text
- http://alkostore.xyz/47459357530h8drx.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418973/normal_60603b4ba338f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4479942/normal_6003d75adff75.pdfIn PDF document text
- http://nigodofifulo.scienceontheweb.net/bhrashtachar_information_in_marathi.pdfIn PDF document text
- http://nojigopagapusu.mygamesonline.org/lava_song_uke_chords.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4365624/normal_5fcfae42ac26e.pdfIn PDF document text
- http://urolog.xyz/international_marketing_plan_of_nestlev9tud.pdfIn PDF document text
- http://gofadivus.mygamesonline.org/kojebetagogivudolat.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://bidusibebawuz.onlinewebshop.net/affairs_cloud_august_2020_weekly.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b35945be-ac41-4b02-baab-81f35740eebb/malezavibawed.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ae21251e-eac9-4f93-9bd4-a01f24333767/webumi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0b0792f0-4457-415d-9332-f3c463a38c61/10_pasos_de_la_lactancia_materna_exitosa_oms.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/20bb2179-1ec8-4f4e-bd55-16aaebb5fb22/19344216380.pdfIn PDF document text
- https://fe426b01-1dd0-498a-b08e-7ec37e320b94.filesusr.com/ugd/6b45f0_4fad6a2758214e2f91f3fc5f09bf81bb.pdf?index=trueIn PDF document text
- http://jaxunukologefis.onlinewebshop.net/unit_1_chemistry_of_life_ap_biology_exam_review_answer_key.pdfIn PDF document text
- https://c064424b-11a8-4e39-a524-24a74bcd733d.filesusr.com/ugd/54e393_af0bc33de64b4e0685b5502e0161adf5.pdf?index=trueIn PDF document text
- http://wegamaluperetuj.atwebpages.com/55575153921.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_off0000d304.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD304 | 5092 bytes |
SHA-256: 61acd1c6fef2c2b032b74aaa8847769bf82de06131fd8a474e3f35de6204c6db |
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font_01_sfnt_off0000e455.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE455 | 10012 bytes |
SHA-256: 01be4e70a304acd124bde22b35eaeffc3066e37c5b6e561e531d19d92ffedba3 |
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