MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or SEO manipulation tactic. The primary URL, https://infrive.ru/pbw, is likely part of a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://infrive.ru/pbw?utm_term=actividades+con+adverbios+de+frecuencia+en+ingles PDF link annotation
- https://static.s123-cdn-static.com/uploads/4406776/normal_5fc5f71b31bcb.pdfIn PDF document text
- https://mijeridofuba.weebly.com/uploads/1/3/4/6/134677835/4126494.pdfIn PDF document text
- https://vuxisiso.weebly.com/uploads/1/3/5/3/135321279/mowuduvu_pufeg_pibixesu_jokiwazef.pdfIn PDF document text
- https://wajigigo.weebly.com/uploads/1/3/4/5/134588105/wumitewogifunijepo.pdfIn PDF document text
- https://ketesepirexutub.weebly.com/uploads/1/3/5/3/135306065/jubibujawa.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4451225/normal_5feb5cb40a554.pdfIn PDF document text
- https://jabuvevakeg.weebly.com/uploads/1/3/4/6/134685488/2853418.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4419832/normal_5ff45e901e24f.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://giribuv.pbworks.com/w/file/fetch/144542613/58601431018.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a5edf328-dbb1-4a22-a229-e558f163f733/what_does_silk_do_to_your_hair.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f8bf6448-a250-43f3-ba26-bf0cc553eebd/lugezi.pdfIn PDF document text
- http://faxamom.pbworks.com/w/file/fetch/144480498/mp3_gospel_instrumentals_free_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0e1d1105-6839-4581-bd51-605101d4378d/links_awakening_switch_review_metacritic.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f23cc35e-ae29-411c-96ef-bf6fe3526e9e/kizozugeteromiradaredepa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e4474fbd-b0dd-4f45-8cd4-c60919ce7d25/how_to_search_google_images_by_the_exact_size.pdfIn PDF document text
- http://sodopateduke.pbworks.com/f/isabella_lullaby_piano_sheet_music_easy.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_off0000dec1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEC1 | 5380 bytes |
SHA-256: 85767d4d7545d5994d967d98a40106a85091d38efdc97032c81767c135e0f865 |
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font_01_sfnt_off0000f11a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF11A | 1800 bytes |
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620 |
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font_02_sfnt_off0000f9a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9A7 | 12136 bytes |
SHA-256: 03c2a4f3a9942f02fbe3a83f8b2628eae9892916bc45615d93bf04975056ca32 |
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