MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.007 JavaScript
This PDF file contains a large number of embedded links, many pointing to disposable hosting and redirector infrastructure, indicating a link farm or phishing attempt. The presence of a link to 'yafferge.ru' with a 'counter strike' UTM term suggests a lure to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or SEO manipulation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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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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 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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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/aws?utm_term=counter+strike+1.+6++non+steam+full In PDF document text
- https://cdn.sqhk.co/kebubupoxiz/e9hcZji/tupoparanaga.pdfIn PDF document text
- https://pujapuvefebawu.weebly.com/uploads/1/3/4/5/134581836/8466896.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4414502/normal_5ffc2c7bd02d2.pdfIn PDF document text
- https://gunajogozezulom.weebly.com/uploads/1/3/5/3/135385825/pudogasavijik-lonopoger.pdfIn PDF document text
- https://cdn.sqhk.co/pixazizaze/d3DmlNH/rescue_mission_roanoke_va_volunteer.pdfIn PDF document text
- https://pazunorafozide.weebly.com/uploads/1/3/0/7/130776571/likedoterajomixed.pdfIn PDF document text
- https://cdn.sqhk.co/nonuripot/hbgCjfN/tekexakuw.pdfIn PDF document text
- https://duxoberadu.weebly.com/uploads/1/3/4/7/134718286/bidumedivi-buxituxo.pdfIn PDF document text
- https://dizavobezovedup.weebly.com/uploads/1/3/5/3/135313146/sogir_tepelogebomi_mowipezokaja_mazufukakin.pdfIn PDF document text
- https://mazazogadof.weebly.com/uploads/1/3/4/3/134374066/5224869.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4464521/normal_5fd08d381c5d5.pdfIn PDF document text
- https://wuzikixow.weebly.com/uploads/1/3/0/7/130775075/9c74eee2.pdfIn PDF document text
- https://cdn.sqhk.co/dogutadova/idWgfsY/informational_writing_lesson_plans_2nd_grade.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4495846/normal_5fcd64ac83f78.pdfIn PDF document text
- https://jitolubupiloz.weebly.com/uploads/1/3/4/6/134637312/0c326980551e3.pdfIn PDF document text
- https://naziwimirup.weebly.com/uploads/1/3/4/3/134371197/3501022.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475380/normal_5fd3a20ddfd7f.pdfIn PDF document text
- https://nuxowodevuj.weebly.com/uploads/1/3/4/6/134609076/0eaed.pdfIn PDF document text
- https://vafukomoruf.weebly.com/uploads/1/3/4/8/134862603/9584996.pdfIn PDF document text
- https://kedifekutijita.weebly.com/uploads/1/3/4/7/134713117/miwibutug.pdfIn PDF document text
- https://cdn.sqhk.co/vozaxodep/gigeMge/hobby_lobby_locations_in_grand_rapids_mi.pdfIn PDF document text
- https://tuvopezape.weebly.com/uploads/1/3/4/7/134712323/wipirufixelu.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
- https://s3.amazonaws.com/petikamov/south_african_history.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_off0000e426.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE426 | 5120 bytes |
SHA-256: 28f87de2d36d755e3f85517c0cbac1ca23fa1692575c7f2aa6d0ee78103208da |
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font_01_sfnt_off0000f587.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF587 | 10160 bytes |
SHA-256: 033e72422b132a3f30d580cfe667fa35492a2c317df22b15ae3df49166e89a5c |
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font_02_sfnt_off00011857.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11857 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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