MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm or redirection scheme. The 'SE_PAYMENT_REDIRECT_LURE' heuristic indicates a likely attempt to trick users into believing there are changes to payment instructions, a common business email compromise tactic. While no scripts were explicitly extracted, the presence of PDF-specific heuristics and the ML classifier's high confidence score point towards malicious intent, likely involving exploitation of PDF vulnerabilities to redirect users to malicious sites.
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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Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LUREDocument describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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://druttle.ru/123?utm_term=how+to+find+the+average+speed+in+physics PDF link annotation
- https://cdn.sqhk.co/konafomaz/dhfia1V/kesuvivoxarutiwil.pdfIn PDF document text
- https://fofonamid.weebly.com/uploads/1/3/4/8/134869219/4369022b6b.pdfIn PDF document text
- https://xuzizalebu.weebly.com/uploads/1/3/4/7/134772475/196be7f1c34.pdfIn PDF document text
- https://lugexobamav.weebly.com/uploads/1/3/5/9/135965248/fukoxagoja.pdfIn PDF document text
- https://rataputi.weebly.com/uploads/1/3/1/4/131407353/bozudipubu.pdfIn PDF document text
- https://cdn.sqhk.co/zevivovakok/jgIeigo/45585776131.pdfIn PDF document text
- https://kuxifegofemiza.weebly.com/uploads/1/3/4/8/134865321/najek.pdfIn PDF document text
- https://cdn.sqhk.co/litonesi/jj37ihR/can_you_escape_50_rooms_11_level_37.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465397/normal_6009d46431a50.pdfIn PDF document text
- https://cdn.sqhk.co/bekutojeke/wHhbuhh/tadovefinajumotawipagiro.pdfIn PDF document text
- https://sizonijuza.weebly.com/uploads/1/3/4/5/134594560/lawejenobejipo.pdfIn PDF document text
- https://sovomebidug.weebly.com/uploads/1/3/1/3/131379042/wijogife.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4490127/normal_5fca72c2428c9.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4493227/normal_5ff2fc50d692c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/gixawetopoli/twitter_latest_version_apk.pdfIn PDF document text
- https://s3.amazonaws.com/luxaduzimase/breakspear_school_ickenham_uniform.pdfIn PDF document text
- http://nekaxikafixof.epizy.com/20882658452.pdfIn PDF document text
- https://s3.amazonaws.com/viromibukoleliw/tamil_siddha_books_free.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_off0001ce8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CE8C | 5600 bytes |
SHA-256: 66cee0921453c8850f9d8ae9155d6563829da832b48317ffa6941865514bef07 |
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font_01_sfnt_off0001e1be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1E1BE | 11924 bytes |
SHA-256: 4e3872c65f6f3fa8e7d3c8d6737408355b6921e93cefd843001f672091677a57 |
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