MALICIOUS
216
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF file exhibits characteristics of a phishing lure, impersonating cloud document services to trick users into clicking malicious links. The heuristic 'PDF_SEO_LINK_FARM' and 'PDF_SEO_UTM_REDIRECTOR_LINK' indicate a large number of external links, with one pointing to a redirector at 'https://gimoguvi.ru/strik?utm_term=project+management+software+reviews'. The ML classifier and ClamAV detection strongly suggest malicious intent, likely involving the exploitation of PDF vulnerabilities to execute a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Cloud document impersonation lure medium SE_CLOUD_DOC_LUREDocument impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
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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/strik?utm_term=project+management+software+reviews PDF link annotation
- https://cdn.sqhk.co/bubiwalifeda/hbvWgeG/experiment_z_zombie_mod_menu.pdfIn PDF document text
- http://tiwimifozukimu.medianewsonline.com/29971508684.pdfIn PDF document text
- https://nebuxegakox.weebly.com/uploads/1/3/4/4/134404726/5cbdf.pdfIn PDF document text
- https://sagejajake.weebly.com/uploads/1/3/5/3/135303377/9485888.pdfIn PDF document text
- http://gefosezidubajoz.scienceontheweb.net/pojusodijifujatixupafaje.pdfIn PDF document text
- https://cdn.sqhk.co/kebabefepu/4bjhchh/girl_name_meaning_god_answered.pdfIn PDF document text
- https://cdn.sqhk.co/zejizoguzut/hfqD7gf/64215458000.pdfIn PDF document text
- https://cdn.sqhk.co/dimowitop/ifdgixH/41069756436.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/suxuzubojut/walkthrough_chrono_cross_bahasa_indonesia.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dd79bbc4-2ff1-4e62-92f5-4c7915c07949/falcon_4.0_bms_4.33_system_requirements.pdfIn PDF document text
- https://s3.amazonaws.com/gitipelut/armaan_malik_images_free.pdfIn PDF document text
- https://s3.amazonaws.com/tabobujimo/film_ajari_aku_islam_indoxxi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1405767e-2032-4528-967c-a411684f7c17/how_to_measure_a_dog_for_a_waterproof_coat.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f08bbca7-63ff-44f8-9fa2-03dbc75d74df/4914304110.pdfIn PDF document text
- https://s3.amazonaws.com/jidosatikim/free_birthday_party_invitation_templates_for_publisher.pdfIn PDF document text
- https://s3.amazonaws.com/fejakixoweka/cambridge_fce_speaking_exam_format.pdfIn PDF document text
- https://s3.amazonaws.com/jupevuxirapi/fluency_sheets_1st_grade.pdfIn PDF document text
- https://s3.amazonaws.com/fatisake/naruto_blazing_ninja_road_18_guide.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c769a7c1-dba7-401b-a8b2-45b4d7b01fd8/el_proceso_de_la_investigacin_cientfica_de_mario_tamayo_y_tamayo_resumen.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_off0000f134.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF134 | 5400 bytes |
SHA-256: bf55e22158fa3eb1842d2f1eeb8178e53afa54d4b228a9f76eda72a4fb5da9d8 |
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font_01_sfnt_off00010395.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10395 | 10764 bytes |
SHA-256: ebb25d65c07fddb5da2315840715c99ec14aa34ffb72804a5a1617d8bd21aae1 |
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