MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many hosted on disposable domains, indicating a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The embedded URL 'https://pelibifir.ru/123?utm_term=appendix+4d+template' is a primary indicator of this malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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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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External URI info PDF_URIPDF contains an external URL action
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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://pelibifir.ru/123?utm_term=appendix+4d+template PDF link annotation
- http://firstflirts.site/problemas_ambientales_en_mexicop4voz.pdfIn PDF document text
- https://cdn.sqhk.co/ketixudolu/jjfXesq/the_crossing_church_chesterfield_live.pdfIn PDF document text
- http://evromotors.net/kuwumulilowigp4jpf.pdfIn PDF document text
- https://cdn.sqhk.co/tavimuxeju/QBXmicl/bullet_bike_sound_music.pdfIn PDF document text
- http://subfamjtii.site/are_new_motherboards_compatible_with_old_processorsjnjgh.pdfIn PDF document text
- https://cdn.sqhk.co/ranilabar/hjFlUID/11247464885.pdfIn PDF document text
- http://savadaqwe.space/6980486886484orp.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://xewenofos.epizy.com/85886703867.pdfIn PDF document text
- https://e8e87dc5-637d-47ba-9de6-e7d98d123d78.filesusr.com/ugd/a69a03_acfb59dac93a4d1c8b470f6da86bc403.pdf?index=trueIn PDF document text
- https://c1908cc8-b41e-4b5b-ab1c-53d28a7f2745.filesusr.com/ugd/913720_5a2c450e7c3a4c2e98ec27ea3e8bf836.pdf?index=trueIn PDF document text
- https://dcd55a6f-f4d9-4ab7-9ea0-0dac4ffa5d6f.filesusr.com/ugd/f7cbe4_e2a53e92540a42f1b0ca8bccb70e7f28.pdf?index=trueIn PDF document text
- https://8964868a-aef6-4da0-9a9b-29de7c28e0c5.filesusr.com/ugd/b910ae_8e4d2d59eb6a431ab970054b3d004919.pdf?index=trueIn PDF document text
- http://wuvopopimuwes.rf.gd/baladikezatarifudo.pdfIn PDF document text
- http://dumiramuji.rf.gd/how_to_learn_english_grammar_book.pdfIn PDF document text
- https://a5a8f6e1-24ae-425c-880d-6f4079e3c376.filesusr.com/ugd/035627_c73e74ac13e24e0b8bba8bdf86e27375.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/cfaf8868-9776-494e-bf96-98fa97f55d1a/pilavijad.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e6c89ec5-7714-4f0a-a47a-b15b64e05f6a/maytag_neptune_front_load_washer_error_code_e3.pdfIn PDF document text
- https://73099f28-10d5-4558-98a1-2f8dc61f1a2f.filesusr.com/ugd/f62eaa_23dccefa90424cc08f78aa85eb64940b.pdf?index=trueIn PDF document text
- https://a179b4bb-f9e1-4b0b-8685-f881d2afde68.filesusr.com/ugd/0fdb6d_86f5997ae284414b80f7ae883e14a328.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/ca7b5ca7-10df-4a7f-b11d-cff06ccf0e47/arms_reach_co_sleeper_assembly_video.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_off0000e5e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5E7 | 4976 bytes |
SHA-256: 055165be71ed4ba24d4fa732b5d349d169ddac8f2b98970fb5523abb1cfa7872 |
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font_01_sfnt_off0000f6ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6CE | 10852 bytes |
SHA-256: f6dcde9654fadfd410985a5e2c6662fbf74516c723d24d1542cadf0073735ed9 |
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