MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
This PDF document was flagged by a machine learning classifier and ClamAV as malicious. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to potentially malicious content. The heuristic 'SE_BROWSER_INSTALL_LURE' indicates the document likely prompts the user to install a browser extension or update, a common social engineering tactic for credential theft or malware delivery. While no scripts were directly extracted, the presence of numerous external URLs and the nature of the heuristics suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://nipisod.ru/123?utm_term=gratis+camstudio+full+version PDF link annotation
- https://cdn.sqhk.co/gidulikegel/ghGRia6/car_simulator_clip_download_2018.pdfIn PDF document text
- https://pusigigapuguv.weebly.com/uploads/1/3/1/4/131438477/a7c934880f.pdfIn PDF document text
- http://stankoff.org/jukogaponegomina70ffi.pdfIn PDF document text
- https://cdn.sqhk.co/feripamapuv/ggbZjf9/free_auto_tune_efx_full_version.pdfIn PDF document text
- http://8bitbeardsco.com/flight_simulator_20_xbox_one_release_date43xfs.pdfIn PDF document text
- https://folumenudi.weebly.com/uploads/1/3/2/6/132681426/3784920.pdfIn PDF document text
- http://copyrightsupport-ig.com/85270458716serp4.pdfIn PDF document text
- https://cdn.sqhk.co/xoxifopu/rvTkidG/67127059446.pdfIn PDF document text
- https://cdn.sqhk.co/jizesusaxeta/aibgfib/face_mask_sign_in_spanish.pdfIn PDF document text
- http://acgmgroup.ru/tie_dye_kit_joannmi2rk.pdfIn PDF document text
- http://fringigejy.site/peduworetiwosiwizezivx7xnk.pdfIn PDF document text
- https://cdn.sqhk.co/mitajaso/jwjfDje/dolomipolad.pdfIn PDF document text
- https://cdn.sqhk.co/falugojafat/genhfyY/baxagi.pdfIn PDF document text
- https://cdn.sqhk.co/zuvaworizon/8hdhXuW/tobomugeberitoxoziwigate.pdfIn PDF document text
- http://razvivatel.blog/strongs_concordance_hebrew_dictionaryc1elq.pdfIn PDF document text
- https://cdn.sqhk.co/sobupepokor/jggcgf2/marshalls_near_me_open_now.pdfIn PDF document text
- http://soldatskaya6.ru/betofoxefapubasanp5y9z.pdfIn PDF document text
- http://vereffka.xyz/zofukupurejohncnw.pdfIn PDF document text
- https://pafebexazare.weebly.com/uploads/1/3/1/1/131163914/607a1e2f.pdfIn PDF document text
- http://profer-opt.ru/andromeda_strain_movie_traileridq14.pdfIn PDF document text
- http://virilibag.66ghz.com/unity_of_place_definition.pdfIn PDF document text
- http://thedouche.xyz/english_speaking_course_without_grammar_part_1aqv7n.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://zurutoraxavifes.rf.gd/bomenamesuraji.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_off0000eebe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEBE | 5256 bytes |
SHA-256: 8e208141dc549bbbc5b6106e02d445b50d5e11255d664f4ea504099520deab80 |
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font_01_sfnt_off00010093.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10093 | 11464 bytes |
SHA-256: 5c701838139f1b649ab7adb762bd96c1c871f026cd5503f9adc73329f97782e6 |
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