MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a significant number of embedded links pointing to external PDF files, many hosted on disposable domains, indicating a link farm or SEO manipulation tactic. Critical heuristics flagged the PDF as a malicious redirector and a link farm, with ClamAV also detecting it as a phishing trojan. The ML classifier strongly supports the malicious verdict. The embedded URLs likely serve to distribute further malicious content or lead users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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/award?keyword=different+branches+of+social+science+pdf In PDF document text
- http://dosaxixapaxa.medianewsonline.com/kawobotarolejof.pdfIn PDF document text
- https://cdn.sqhk.co/goworonol/WJRhbia/dabizugefo.pdfIn PDF document text
- https://cdn.sqhk.co/nozesinipi/ijhjWgh/luzusunazorakefa.pdfIn PDF document text
- https://mepalowe.weebly.com/uploads/1/3/1/0/131070826/kazuwubisuxegat.pdfIn PDF document text
- https://cdn.sqhk.co/serodozire/cdWMfbM/bonijirawejokov.pdfIn PDF document text
- http://najapizarut.22web.org/is_death_note_the_best_anime_ever.pdfIn PDF document text
- https://vanazufir.weebly.com/uploads/1/3/2/7/132740694/tomebiga.pdfIn PDF document text
- https://pasugewu.weebly.com/uploads/1/3/1/0/131071180/difutobuga.pdfIn PDF document text
- https://cdn.sqhk.co/nazujovo/h86jchf/terry_bozzio_drum_kit_setup_time_lapse.pdfIn PDF document text
- https://simamofot.weebly.com/uploads/1/3/3/9/133997368/4436580.pdfIn PDF document text
- https://cdn.sqhk.co/sigidezok/tShbjjq/brasfoot_2020_crackeado_android_premium.pdfIn PDF document text
- https://cdn.sqhk.co/benibavagoge/haJghhi/rainbow_dash_colouring_sheet.pdfIn PDF document text
- https://cdn.sqhk.co/fatidizeru/gjgikqk/tips_zepeto_avatar_maker.pdfIn PDF document text
- https://cdn.sqhk.co/dusujukakal/gfUiaeQ/police_officer_exam_nj.pdfIn PDF document text
- http://melivoxigozige.mypressonline.com/2417568347.pdfIn PDF document text
- http://waliduv.mypressonline.com/14318877266.pdfIn PDF document text
- https://cdn.sqhk.co/budatumibowu/loRgcG3/audi_rs6_performance_plus.pdfIn PDF document text
- https://cdn.sqhk.co/wamefuvew/hgcnhf4/my_talking_ghost_2_download.pdfIn PDF document text
- http://nuzidixiwetor.22web.org/12762703533.pdfIn PDF document text
- https://cdn.sqhk.co/xupebasolaw/eAgdyiA/concertino_da_camera_sheet_music.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://rakimeramut.epizy.com/2009_bmw_x5_performance_parts.pdfIn PDF document text
- http://zerowegujij.onlinewebshop.net/68051637531.pdfIn PDF document text
- http://tefokubekaxo.rf.gd/stay_with_me_sam_smith_piano_sheet_music.pdfIn PDF document text
- http://komoxam.rf.gd/spatial_data.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_off0001a95d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A95D | 5384 bytes |
SHA-256: 20398ca70d198067ae28972dd86d3ef28f8ba95b87fd47e129060c9ced13505c |
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font_01_sfnt_off0001bba5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1BBA5 | 14104 bytes |
SHA-256: 150d85e1806895fc342ddad3a86fc10470a8ef1c5422e27e067670da124048d5 |
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