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 a redirector link to 'yafferge.ru'. The ML classifier also strongly indicated maliciousness. Although no scripts were directly extracted, the PDF structure and embedded link suggest an attempt to lure users to a malicious site, likely for phishing or malware distribution. The presence of a redirector link is a strong indicator of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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/award?keyword=benetti+delfino+95+pdf In PDF document text
- https://cdn.sqhk.co/fagaxirupunu/dOmndgj/dagur.pdfIn PDF document text
- https://cdn.sqhk.co/dibirolinu/SkigjjG/bopuvitugokasexibefenas.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369502/normal_605396a4a87cc.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4375077/normal_600661228cbcc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405925/normal_602e7cd32d742.pdfIn PDF document text
- http://pulaketuwogeza.22web.org/oxigenoterapia_minsal.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465709/normal_603f5eb12fad8.pdfIn PDF document text
- http://vezokikawelin.iblogger.org/povafusobitufogesetamif.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416806/normal_601e86ce851c7.pdfIn PDF document text
- http://zanedasimitavo.22web.org/aruba_7010_controller_configuration_guide.pdfIn PDF document text
- https://cdn.sqhk.co/jokawefezo/if1bZBZ/35721621064.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/dutuzanob/i_robot_movie_download_in_english.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d54bbdc5-76b3-4049-8c5c-e4824d974c15/32440558260.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/acf2ae58-1b51-46d3-b207-1808e5fcb39a/double_down_kfc_nutrition.pdfIn PDF document text
- http://xefavab.rf.gd/leaps_and_bounds_truro_ofsted_report.pdfIn PDF document text
- http://rododibez.epizy.com/11311395557.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c1dc557a-6538-4cfc-a03e-051cb08e953f/jandy_aqualink_rs8_control_panel.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0e21f49f-b5f9-4f40-b665-7c0ee5317854/epson_sc-p8000_price.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/27b59d0e-01ca-48c1-a8d7-98d06addce59/vepapixixavenila.pdfIn PDF document text
- https://s3.amazonaws.com/jenisozazewubo/73979647042.pdfIn PDF document text
- http://dusetelonuzaj.epizy.com/add_menu_button_to_action_bar_android.pdfIn PDF document text
- http://xexerekiw.rf.gd/83519555187.pdfIn PDF document text
- http://fosisoxefet.epizy.com/mr_coffee_4_cup_coffee_maker_user_manual.pdfIn PDF document text
- https://s3.amazonaws.com/sitok/comedy_videos_mp4.pdfIn PDF document text
- http://poxelisenaxoxig.epizy.com/bhagwan_ki_photo_wallpaper.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e17d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE17D | 4880 bytes |
SHA-256: 1618ac25b96cf821686a3a867fb4a52e28bf9dc94c01a7aeef3b0fbe948838b0 |
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font_01_sfnt_off0000f23d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF23D | 14420 bytes |
SHA-256: b501333afd524160c415c42bfc93baccf58168847b71bba0f504b1483f1ecc7f |
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font_02_sfnt_off0001204f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1204F | 16288 bytes |
SHA-256: c43682379c63263bf7affef362f50dc936c7d8cd6184a6801c6fbb897e4e4759 |
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