MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs, many pointing to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of external URI heuristics and the ClamAV detection name 'Pdf.Phishing.Trojan' strongly support a phishing or trojan attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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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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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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 http://vodova51-53.cz/files/wopaf.pdf In PDF document text
- https://akproauto.com/nbloom/fckuploads/file/83143597141.pdfIn PDF document text
- http://palmdale.thepokeluau.com/uploads/files/wejuda.pdfIn PDF document text
- https://thingstodobahrain.net/ckfinder/userfiles/files/molix.pdfIn PDF document text
- https://adtw1.com/ckfinder/userfiles/files/82415192498.pdfIn PDF document text
- https://www.cifphosteleriayturismo.es/ckfinder/userfiles/files/jufojupuzoguduwexozafaker.pdfIn PDF document text
- http://vlaamspatientenplatform.be/_plugin/ckfinder/userfiles/files/94289321776.pdfIn PDF document text
- https://pbchistoryonline.org/uploads/file/45504479929.pdfIn PDF document text
- http://winso.tw/userfiles/file/kiwuzirukivamimutu.pdfIn PDF document text
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141ee5e5085b---48197782216.pdfIn PDF document text
- https://debcopharma.com/userfiles/file/tuxufolubajajisuxazada.pdfIn PDF document text
- http://everest-c.ru/ckfinder/userfiles/files/zerisimaroxefox.pdfIn PDF document text
- http://hypotekaprezamestnancov.sk/res/file/xavinebek.pdfIn PDF document text
- http://chinalabware.net/d/files/7482424162.pdfIn PDF document text
- http://www.lovebliss.tw/UserFiles/files/kufupajuraba.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/66163881527.pdfIn PDF document text
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/520303b0c036d48f17660e6358065f01/59771076184.pdfIn PDF document text
- https://pima-alarms.rs/slicice/file/kisatipufafobimixodepitel.pdfIn PDF document text
- https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/b6989b7d09af709cf43d4eae5bba9b85/49854418789.pdfIn PDF document text
- http://heydarbaba.org/resimler/files/44275849578.pdfIn PDF document text
- http://www.sictombbi.fr/ckfinder/userfiles/files/65117230331.pdfIn PDF document text
- https://robodom.si/files_vsebine/vulalipobu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=13+500+v+bucks+code+free+2021PDF link annotation
- 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://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_off0000ec6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC6F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010481.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10481 | 18096 bytes |
SHA-256: aa2a5eeb9ff924fb52eefb91f477e254e92d760cd8f9c7ce942c01d19bd9f10e |
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font_02_sfnt_off0001336d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1336D | 10868 bytes |
SHA-256: 90ee8f4712866ba262a7b4320d4523acbae828175f060d6180f16b8e43da469e |
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