MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple links pointing to other PDFs hosted on various websites, many of which appear to be compromised or disposable. The 'SE_CALLBACK_LURE' heuristic suggests a phishing or tech-support scam context. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to deliver a phishing page or further malware. No scripts were extracted, but the structure suggests a link farm designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 7
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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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://widepolymers.com/userfiles/file/93173889485.pdf
- http://timeyear-v.com/userfiles/file/pajedexeladomulubona.pdf
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/14q6b30s7t8cvrg9094dc058ci/tugoweluzajonoxekekaser.pdf
- http://stluciachamber.org/uploadedImages/contentImg/file/pasaz.pdf
- http://studiotrusso.it/userfiles/files/99178826784.pdf
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144dc7967d8c---37156072080.pdf
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/5u51nal9fk8haom2hbjl8v1um3/kixemugibapato.pdf
- https://dptech.vn/uploads/files/74832565987.pdf
- http://thepokeluau.com/uploads/files/tenozabezopuzejasozuzakar.pdf
- https://ptkas.com/kingkong/userfiles/files/lekigutibigim.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/161444b463dc69---gavitajux.pdf
- http://myslizdrave.com/soubory/19027658447.pdf
- http://bunny888.com/ckfinder/userfiles/files/dobudexivozofuvafukawu.pdf
- https://careerroots.net/ckfinder/userfiles/files/ximosanevegixo.pdf
- http://mariancozma.com/_user/file/latixexejafuwavek.pdf
- http://xsjsbzrw.com/uploads/files/tipilabuj.pdf
- http://fese.in/ienupdimages/images/files/dimomekijopo.pdf
- https://santchavarabed.in/ckfinder/userfiles/files/28005243526.pdf
- http://metabolit.ru/files/file/xepejurazuruzo.pdf
- https://damsindia.org/admin/uploads/file/35804523785.pdf
- http://facilitymanagementassociates.com/survey/userfiles/files/11361627071.pdf
- http://tuvantindat.com/uploads/2021-09-03/images/files/28589062390.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=how+block+number+android
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e371.bine64700a97fc9edafa6726bc33f1cf3850bf99ee428eb31600f0f8616ef0c3ff3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE371 | 18372 bytes |
font_01_sfnt_off000112b5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112B5 | 16792 bytes |
font_02_sfnt_off00012acc.binf08242aff9063b2c0a8f5519a869ccdadcae00509f5eeee3b26afdab32741574 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12ACC | 10672 bytes |
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