MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file exhibits characteristics of a phishing or malware distribution lure, employing a link farm strategy to host numerous external links. The primary URL, https://chcial.ru/pbw?utm_term=world+book+encyclopedia+2020+pdf+free+download, suggests a deceptive attempt to trick users into downloading content under the guise of free resources. The presence of a large number of external links, many hosted on disposable domains, further supports this malicious intent. Although no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a high likelihood of malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://chcial.ru/pbw?utm_term=world+book+encyclopedia+2020+pdf+free+download PDF link annotation
- https://xoverepidagagit.weebly.com/uploads/1/3/4/4/134469055/d9a7a.pdfIn PDF document text
- https://ratexema.weebly.com/uploads/1/3/4/7/134720574/1617045.pdfIn PDF document text
- https://boxoxezerutevok.weebly.com/uploads/1/3/4/3/134317212/44fe5efb7c7.pdfIn PDF document text
- https://juvafize.weebly.com/uploads/1/3/7/5/137516136/fozuzidewixupanevax.pdfIn PDF document text
- https://nanupiwe.weebly.com/uploads/1/3/1/6/131606486/xozeturavunugizirusu.pdfIn PDF document text
- https://larigagip.weebly.com/uploads/1/3/4/8/134887586/viwurage_tozowilube_duxodenuv_safoxid.pdfIn PDF document text
- https://dozogifelezu.weebly.com/uploads/1/3/4/3/134313369/93761b0.pdfIn PDF document text
- https://jafoxoxuxovawe.weebly.com/uploads/1/3/0/8/130813536/tatukotu-ripajijezipo-robidarabisawib.pdfIn PDF document text
- https://zizopozuwugova.weebly.com/uploads/1/3/0/7/130775786/muwavetakiro_kuseputaz.pdfIn PDF document text
- https://xamurifepugep.weebly.com/uploads/1/3/4/4/134484548/xukolari-nojemezakedoz-vokol-kozifu.pdfIn PDF document text
- https://zinikatutonew.weebly.com/uploads/1/3/4/5/134504697/07f5c4c2cb5f.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://zafasuvolo.pbworks.com/w/file/fetch/144554034/86296215682.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dc9d31f0-a0e4-4c59-a397-82bce16311c4/humnava_mere_female_mp3_song_download_pagalworld_mp4.pdfIn PDF document text
- http://noxiwako.pbworks.com/f/free_printable_fish_coloring_pages_for_preschoolers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8e20cfda-7882-4550-8a22-36a923aaf49e/buvomabiv.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0579c2f7-ad5f-4eda-906f-edf0d4a21401/technology_due_diligence_report_template.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/01917b3b-7d21-416c-8bc9-2ec59821c9e5/autodesk_fusion_360_-_the_master_guide.pdfIn PDF document text
- http://nukuxim.pbworks.com/f/milotobonapa.pdfIn PDF document text
- http://zeladejan.pbworks.com/w/file/fetch/144441768/tijen.pdfIn PDF document text
- http://sazupamufode.pbworks.com/f/3.pdfIn PDF document text
- http://xedidovetaw.pbworks.com/f/18344330641.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/87e569d7-e188-4e2e-92a5-0f2f1bcdbb82/pillars_of_criminal_justice_system_definition.pdfIn PDF document text
- http://zobafolu.pbworks.com/f/main_hoon_na_full_movie_shahrukh_khan_hindi_2004_hd.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_off0000e19e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE19E | 5656 bytes |
SHA-256: 0c51ae4ba64a05d0a0d334cce54cde21697b9b215e03681b430799dca0fe2bda |
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font_01_sfnt_off0000f515.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF515 | 13156 bytes |
SHA-256: 27a201fcbbb4b8fec05317a0f69cb93fb17cff247ae7263223b999cd032d2d72 |
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font_02_sfnt_off00012021.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12021 | 16172 bytes |
SHA-256: 6e699eab9a6fef16b3ea923df7b93ce1c5cbd97c7a594d359cd98c90be4a35f1 |
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