MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF file contains multiple heuristics indicating malicious intent, including PDF_SEO_LINK_FARM and PDF_SEO_UTM_REDIRECTOR_LINK, pointing to a phishing or malware distribution scheme. The presence of an embedded URL leading to 'jumiwimov.ru' suggests an attempt to redirect the user to a malicious site. The ML classifier and ClamAV detection further support the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://jumiwimov.ru/aws?utm_term=hayward+salt+cell+reset+after+cleaning PDF link annotation
- https://s3.amazonaws.com/lekizopiloref/excuse_me_in_korean_informal.pdfIn PDF document text
- http://forkidsshop.online/gopro_hero4_silver_firmware_updateti2jb.pdfIn PDF document text
- https://s3.amazonaws.com/xuzakob/52016019312.pdfIn PDF document text
- https://s3.amazonaws.com/vokeri/vinanugaxalafew.pdfIn PDF document text
- https://s3.amazonaws.com/palevijuj/nekoxisibiratiwomelas.pdfIn PDF document text
- http://ranking-se.com/wovawav83ip0.pdfIn PDF document text
- http://josebixotarez.22web.org/tolotisuzolulokiz.pdfIn PDF document text
- http://usacreditreport.info/dnd_5e_critical_hit_damagegkflk.pdfIn PDF document text
- https://s3.amazonaws.com/vabemavuputenif/38341460928.pdfIn PDF document text
- https://s3.amazonaws.com/girilifawuxi/rebejoguvopufatikutenuki.pdfIn PDF document text
- https://s3.amazonaws.com/lixuzo/data_science_course_in_india_with_placements.pdfIn PDF document text
- http://itslm.fun/zakaseduvzjcx.pdfIn PDF document text
- http://golosa-spasibo.ru/dunkin_donuts_ingredients_chocolate_frostedsuee2.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/a60d674c-ced0-4715-9249-64286e16a50f/85037531762.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c7b542e9-008c-4ad4-8cf5-823a8fd09965/usmc_junior_enlisted_performance_evaluation_system.pdfIn PDF document text
- http://dibawuleseba.rf.gd/electric_start_honda_pressure_washer.pdfIn PDF document text
- https://ed4d48c2-14ea-47f5-a89a-b82193587323.filesusr.com/ugd/8ce377_3ba1895f567d45e2a51408366880c95f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/5d95ffc3-1316-41c0-acde-09567fec7a21/49467165475.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/31750d02-129b-4e8c-912e-37513a055278/ribhu_gita_download.pdfIn PDF document text
- https://5e1449e8-5ae4-4a15-bc7a-ee23795bc964.filesusr.com/ugd/3a34a5_beca9e2fa5974a92a6476fdd6373e154.pdf?index=trueIn PDF document text
- https://be9ca920-c372-4566-b00d-544f92814f3b.filesusr.com/ugd/f0c5a9_866759d0b8ec4efcb8ae92e8becdae5f.pdf?index=trueIn 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 | 5344 bytes |
SHA-256: a17b16abf31ba86c94090caf8e6b6b3941fb464ec3f54a63040b70437047c5dd |
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font_01_sfnt_off0000f83f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF83F | 11036 bytes |
SHA-256: 577dca5acbb3380ba10fb35ac30b041865510629bd2fd6bc4d2cbdaa4e80127f |
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