MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file flagged by multiple heuristics as malicious, including a critical finding for linking to a known malicious redirector. The embedded URL `https://crophysi.ru/strik?utm_term=manual+de+primeros+auxilios+2018+pdf` is the primary indicator of malicious intent, likely serving as a lure for phishing or malware distribution. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
Heuristics 5
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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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://crophysi.ru/strik?utm_term=manual+de+primeros+auxilios+2018+pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4409244/normal_5fd74fbb538a2.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379491/normal_5fe1aaabac55c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370273/normal_60353ef961b9b.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In 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/b843a221-b150-4976-8b6d-1cc85f3b34bc/pokemon_-_eevee_and_pikachu_convertible_mini_loungefly_backpack.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8e42311d-b525-4169-b381-de5f843c10c3/mary_poppins_umbrella_handle_printable.pdfIn PDF document text
- https://ce83042b-5faf-46b5-bcbb-9b4d05ec7d33.filesusr.com/ugd/a31856_7bbd04e9842f4e75a575ac3ab79cc6bd.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/98cf8df7-6c3b-4eac-9077-bbb75f8731df/satimaturenetez.pdfIn PDF document text
- https://72858ab8-d36f-4bc2-b208-e5ec56e76d01.filesusr.com/ugd/3a4e0e_c4909db638224150b8c2ad92e4f5e017.pdf?index=trueIn PDF document text
- https://75cc4b12-69da-4024-8422-75f9303faa99.filesusr.com/ugd/d6c222_1c112549f57548cda08ab20cbd41c13f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/cdfa5741-a58d-4375-9d17-60f4ca888012/51959382221.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a311786f-f7e9-45bd-8791-54c44b2e8a72/bakagedabom.pdfIn PDF document text
- https://40e214c1-1950-44e8-a195-e2c6eeb23253.filesusr.com/ugd/a517f4_e73a82e96f884a9f836000847227a377.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/a9ba0fff-c598-4fd8-a206-08b8870ea680/2000_ford_ranger_xlt_engine.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fc7e4917-f394-49ed-beba-fb72c0227871/health_and_safety_sample_exam_questions.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b9dc145e-fb8f-4bfc-a00d-c6f4967704f3/24667019594.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8ce20c71-2821-4fbf-805f-14f867da14b0/gym_strength_training_routine_weight_loss.pdfIn PDF document text
- https://80cb706b-a9cc-40e6-9cd2-ad5688d6c4a8.filesusr.com/ugd/c84a73_5e7d8f7952934769b1cc27d7a7d00bdb.pdf?index=trueIn PDF document text
- https://5d9de69b-f80b-44d6-9c2d-9027806fef0b.filesusr.com/ugd/e26ad2_efd23ab9e4324c488f638b46e901593c.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/43a74d10-f6a1-4b68-8af2-6e960c4f684f/fipiroduzuguvolobur.pdfIn PDF document text
- https://aa5f33e9-793b-4807-a257-9eac84d314d0.filesusr.com/ugd/aa57b2_93203c4f98f34137b744ef0d4f42e829.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/4fdc1970-4ec7-4a60-84c0-ea19758cefb0/what_oil_for_2011_rav4.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_off000226e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x226E1 | 1888 bytes |
SHA-256: 2c7408843c2a5a412c47fc29201482394c3b384fbe388155989299ca1f950d27 |
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font_01_sfnt_off00022fcd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x22FCD | 5780 bytes |
SHA-256: 3ccc3adec018eb10c65853f80108d9f106c234ebdf07c9b2098868363940e50b |
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font_02_sfnt_off0002437d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2437D | 12788 bytes |
SHA-256: e520cf92612f2a0c0e2e830e0b8573457b53f065607bafc6ebff56e0dafe876e |
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