MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file is identified as malicious by multiple heuristics and a machine learning classifier, and is detected by ClamAV as Pdf.Phishing.Trojan. The file contains a large number of external links, many pointing to disposable domains, suggesting a link farm or SEO manipulation tactic. One prominent URL is https://infrive.ru/pbw?utm_term=5+paragraphs+of+an+opord+army, which is likely the primary lure. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of phishing or malicious redirection.
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://infrive.ru/pbw?utm_term=5+paragraphs+of+an+opord+army PDF link annotation
- https://static.s123-cdn-static.com/uploads/4378410/normal_5fce9bff9dd26.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4414687/normal_5ff68505ddfa2.pdfIn PDF document text
- https://vatozuserivowi.weebly.com/uploads/1/3/4/3/134385792/3398186.pdfIn PDF document text
- https://musekakilex.weebly.com/uploads/1/3/1/4/131406804/6458246.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4529024/normal_5fef69260f89f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426425/normal_6018d6d82af69.pdfIn PDF document text
- https://panulozeti.weebly.com/uploads/1/3/5/3/135351273/9348354.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://fixiguru.pbworks.com/w/file/fetch/144476595/dollar_general_ad_for_this_week.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/157f7731-a874-424b-b561-b21a77d24654/mrs_dalloway_book.pdfIn PDF document text
- http://nosiravuga.pbworks.com/w/file/fetch/144481050/maths_activity_worksheets_for_grade_1_cbse.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/63aca346-24ec-4615-8daa-4d89b7ec3aa2/cuadro_comparativo_de_nexos_y_conectores.pdfIn PDF document text
- http://sofutikajen.pbworks.com/f/how_to_measure_transformer_winding_capacitance.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/196c394d-042b-46bf-919c-166e2aabcefa/ielts_2020_test_dates_malaysia.pdfIn PDF document text
- http://fotikeralo.pbworks.com/w/file/fetch/144444057/rejolimofotinubonulali.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e12b3130-bf73-4751-bcdc-cdb42315c17b/model_3_vs_model_s_vs_model_x.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e6a86be4-5542-4b6c-be2f-8997a8740ac9/9333362633.pdfIn PDF document text
- http://mujusevo.pbworks.com/f/what_is_the_current_level_of_unemployment_in_nigeria.pdfIn PDF document text
- http://mefijunov.pbworks.com/f/8_snf_veri_analizi_test_zml_sorular.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7668daae-80d1-4e08-9a9a-7b6f6b762983/how_to_clean_burnt_coffee_maker.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_off0000d5ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5AE | 5096 bytes |
SHA-256: 8bab7daa991c7b964b39a62eff1c554887a530beb15f19e19a1a602dd707b615 |
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font_01_sfnt_off0000e6c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6C0 | 10968 bytes |
SHA-256: ee573dd6b2268e6f3cb38a3c91075a1b855d3b1e4a9cadd3c4d3c22cafc7ee4f |
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font_02_sfnt_off00010b98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B98 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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