MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains references to 'Kumon workbooks download pdf' and 'wkhtmltopdf', indicating a lure to download educational materials which likely leads to malicious sites.
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://jacksth.ru/strik?utm_term=kumon+workbooks+download+pdf PDF link annotation
- https://dobetabuzaduguz.weebly.com/uploads/1/3/5/3/135312815/pigalexebeguwimutu.pdfIn PDF document text
- https://cdn.sqhk.co/jimevexir/TjgdCha/26263952761.pdfIn PDF document text
- https://cdn.sqhk.co/nivavepe/icPIjgl/5681596864.pdfIn PDF document text
- https://cdn.sqhk.co/mawejoxejobe/xjbghgh/national_capital_funding_group_llc.pdfIn PDF document text
- https://cdn.sqhk.co/ligumorik/Vunmpja/love_quotes_for_him_from_the_heart_short.pdfIn PDF document text
- https://cdn.sqhk.co/gorubabor/Didjaic/huey_dewey_and_louie_christmas_ornaments.pdfIn PDF document text
- https://selelidenitofek.weebly.com/uploads/1/3/5/3/135345481/9cca66b.pdfIn PDF document text
- https://cdn.sqhk.co/xubulozirod/dhzifie/realdash_can_arduino.pdfIn PDF document text
- https://telazavax.weebly.com/uploads/1/3/4/7/134729689/wizokutereputi.pdfIn PDF document text
- https://pedagojewixa.weebly.com/uploads/1/3/1/3/131398360/e7533.pdfIn PDF document text
- https://cdn.sqhk.co/zolaxadivowe/Thdz2C1/jagevogu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4493888/normal_604ef558884d6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4412778/normal_5fde4e683f004.pdfIn PDF document text
- https://waxosutuj.weebly.com/uploads/1/3/1/4/131437699/6b764779a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366014/normal_5fc86f4975779.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/d95d0a24-3f36-4058-937e-eff7e036861f/ruin_and_rising_book_trailer.pdfIn PDF document text
- https://s3.amazonaws.com/pusolefosex/velirojizomafuj.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/99b6cb92-b1c6-488b-824f-a3094906950b/julius_caesar_film_cast.pdfIn PDF document text
- https://s3.amazonaws.com/paxivogedewilu/guwirogoxuxuzab.pdfIn PDF document text
- https://s3.amazonaws.com/janodojivi/adobe_sign_document.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_off0000d5e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5E6 | 5452 bytes |
SHA-256: 480a109e7c4e6f0896e2f6cacb9322ec38d9702fe7c93fbf4166a2083c2e5e0e |
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font_01_sfnt_off0000e864.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE864 | 10636 bytes |
SHA-256: f36a926719aef45c5c9bc68c663aa2cba83242b847c43f52c3903b902bb9a30c |
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