MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous links to external resources, many hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious sites or download further payloads. The presence of embedded URLs and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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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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://philabc.ru/uplcv?utm_term=photo+outline+maker PDF link annotation
- https://wodepcb.cn/uploadfiles/files/96680514664.pdfIn PDF document text
- http://clubselectionvoyages.com/images/file/rudivujolulipulevibir.pdfIn PDF document text
- http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5caa9e4c4b---wamonutepixesasubo.pdfIn PDF document text
- http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609431c75595d---15124165600.pdfIn PDF document text
- http://www.tobywells.org/media/fckdir/file/wokefifetomedudunaxusem.pdfIn PDF document text
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/15480419766094cf39b6c60.pdfIn PDF document text
- https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/02668782777ca03819e92afbe019f4d3/tupolozogosogelov.pdfIn PDF document text
- https://akapacha.com/userfiles/file/68963572510.pdfIn PDF document text
- http://maremio.ru/admin/ckfinder/userfiles/files/wenaxevukoxudaxaxaladapa.pdfIn PDF document text
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16073682299eba---56780731383.pdfIn PDF document text
- http://anhuishangbiao.com/upload_fck/file/2021-6-5/20210605035441163897.pdfIn PDF document text
- http://fitnessklub-impuls.pl/uploads/assets/file/3288026645.pdfIn PDF document text
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16096fb77c1d01---24407506291.pdfIn PDF document text
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/40aefd9403170752520be18a187a7562/jivek.pdfIn PDF document text
- https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/d452f8244e6aebcd04ba61a599706ea4/bepewunetuxogodit.pdfIn PDF document text
- https://grand-forge.ru/wp-content/plugins/super-forms/uploads/php/files/9f25dae32b1615153cc6cb127825df15/sezutexusukewegusinufudef.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off000110b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110B0 | 4812 bytes |
SHA-256: 1858637ee21b8a839aaee8150220587377089f3d5a936c2e3831ef0379d5816f |
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font_01_sfnt_off000120de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120DE | 11176 bytes |
SHA-256: 172d2ae33234fbac84625bf4b2f1386fe2e4301031ddbfe9fe6aeefa9e73e949 |
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