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 alert for linking to known malicious redirector infrastructure. The embedded links, such as 'https://yafferge.ru/123?utm_term=the+informer+2019+full+movie', are designed to redirect users to potentially harmful sites. The ML classifier and ClamAV detection further support its malicious nature, indicating a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://yafferge.ru/123?utm_term=the+informer+2019+full+movie In PDF document text
- https://cdn-cms.f-static.net/uploads/4380411/normal_6038dea64b516.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4424935/normal_5ff28feedaa1b.pdfIn PDF document text
- http://mizizufiku.mywebcommunity.org/seoul_metro_map_english.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4490519/normal_5fede507917a5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381287/normal_6028e8d0cdf1e.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://sulorowanutabu.atwebpages.com/lepenijosojofejasorixofam.pdfIn PDF document text
- https://ede36962-9452-4451-b182-fa4236ba9bc6.filesusr.com/ugd/83b1b3_f4a9b2e7b9284f20b0cdb376861826bd.pdf?index=trueIn PDF document text
- http://ditonumu.epizy.com/68995570112.pdfIn PDF document text
- http://todamabofadufod.epizy.com/resmed_s9_vpap_adapt_clinician_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1c1db93d-0260-4506-8732-7fc6987e3ba2/22527455301.pdfIn PDF document text
- http://bivojeda.atwebpages.com/semesipavisix.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2d79413b-2b60-437e-b713-0baff647bf57/what_is_the_meaning_behind_elephants.pdfIn PDF document text
- https://8f1ef4f7-3f23-41ef-a3d6-4e5873a175a2.filesusr.com/ugd/d318ce_22f5617c7c464ae7b47755babc460dd2.pdf?index=trueIn PDF document text
- http://revudipepofaten.myartsonline.com/2920510685.pdfIn PDF document text
- https://a9864912-ad24-422b-99f3-2d90f7703507.filesusr.com/ugd/d6af85_31e60d6ea8304e7e88bee29cc9734d71.pdf?index=trueIn PDF document text
- http://nidikofuwovi.rf.gd/android_alertdialog_button_text_color.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/95f50284-d0cf-46da-88f2-d392bea5bd7b/wanoxunezasesoniditi.pdfIn PDF document text
- https://57eba762-b826-4879-8d7a-7f480aba2934.filesusr.com/ugd/e89c2b_694f01e5a8dd45a7b6ee30f5d669aeb2.pdf?index=trueIn PDF document text
- https://0fdd9f25-8366-4660-9463-376fd915ad39.filesusr.com/ugd/c16cf9_bc0b5fac524043e5948c6a3d8154b1e0.pdf?index=trueIn PDF document text
- http://dabixuri.rf.gd/twenty_thousand_leagues_under_the_sea_summary.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_off0000d51e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD51E | 4912 bytes |
SHA-256: 76be8a12ca73e9eb4f7f5cf005483fb39e13f246761849cb09783845d7e1c10c |
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font_01_sfnt_off0000e5a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5A5 | 10192 bytes |
SHA-256: 014c8bdb7ebf39979e512255b5e3417a7d7ade64891b0bf22d33c1650c63aa20 |
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font_02_sfnt_off0001085c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1085C | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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