MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://yafferge.ru/strik?utm_term=download+aov+server+china+apk', which is likely intended to trick the user into downloading a malicious APK. The document body, though heavily obfuscated, contains a similar URL, reinforcing the phishing and download lure. The presence of numerous other PDF links suggests a link farm used to obscure the malicious destination.
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 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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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/strik?utm_term=download+aov+server+china+apk In PDF document text
- https://static.s123-cdn-static.com/uploads/4414867/normal_5ffbe79e06624.pdfIn PDF document text
- https://wonelapafilujol.weebly.com/uploads/1/3/1/6/131606162/7530434.pdfIn PDF document text
- https://sanepawoja.weebly.com/uploads/1/3/4/5/134579143/zoras_lotadalidato_rizinareza.pdfIn PDF document text
- https://zugepopudodeg.weebly.com/uploads/1/3/4/6/134688503/lifubekubo_susotemuj_zubil_nidebuwur.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4500189/normal_5ff20a2c7f8a7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370286/normal_6056eb3dc0430.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/fizup/xegezedog.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ab59524c-7d2d-49f5-986a-e593d5b6eb7b/hynix_ram_service_center_near_me.pdfIn PDF document text
- https://s3.amazonaws.com/pafexegud/lowik.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/af4ce6cb-5549-45bb-9f90-719424af1649/rudes.pdfIn PDF document text
- https://s3.amazonaws.com/gupawupigawono/binomial_probability_distribution_worksheet.pdfIn PDF document text
- https://s3.amazonaws.com/wujodibu/noun_activities_for_year_5.pdfIn PDF document text
- https://s3.amazonaws.com/gadumagabusodel/celine_dion_songs_mdundo.pdfIn PDF document text
- https://s3.amazonaws.com/kiguteperilodu/flow_over_broad_crested_weir_lab_report.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1a305f01-27fb-4b07-97b1-83384755ed82/89597166016.pdfIn PDF document text
- https://s3.amazonaws.com/vabedafozo/20628785433.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6013cb91-4900-4940-8428-bdc5772442f4/donosatoge.pdfIn PDF document text
- https://s3.amazonaws.com/laginekux/mogol.pdfIn PDF document text
- https://s3.amazonaws.com/lorifumofelu/comprehensive_psychiatric_evaluation_template.pdfIn PDF document text
- https://s3.amazonaws.com/galinikagopit/ms_word_table_of_contents_add_level_4.pdfIn PDF document text
- https://s3.amazonaws.com/gizonukorad/81703137794.pdfIn PDF document text
- https://s3.amazonaws.com/zebarufuridorur/20620089887.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_off0000eb0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB0D | 5376 bytes |
SHA-256: 116e2b1269fa1c5c052e72da2ef678934034626845ac63f2cb4d45557099e37a |
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font_01_sfnt_off0000fd6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD6D | 21440 bytes |
SHA-256: a18335b3b3c64a25576fd43cc0547af7528ee330a0423f487febf3ad9603184e |
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