MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links pointing to compromised WordPress sites, indicating a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious link farm designed to lure users to external malicious content.
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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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=dcf+work+calendar+pdf PDF link annotation
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b1a49f1ecb9---ruxemon.pdfIn PDF document text
- https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/a0a0792ad135c7fd0955a4961846651a/44276543869.pdfIn PDF document text
- https://sgpropertylawyers.com/wp-content/plugins/super-forms/uploads/php/files/cf05c821f7ddb475c484070b51fd72f7/41461573396.pdfIn PDF document text
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/jh63cm416dmjs5kg86hj02t5g6/24334220778.pdfIn PDF document text
- https://chpcentre.com/files/file/wofulizabogoxajifibolatop.pdfIn PDF document text
- https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16080d56795481---disus.pdfIn PDF document text
- https://usssecuritate.ro/userfiles/file/49617289828.pdfIn PDF document text
- http://anhuishangbiao.com/upload_fck/file/2021-5-4/20210504042230140797.pdfIn PDF document text
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1608075247bac5---21805559106.pdfIn PDF document text
- https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/160afa54ad0d67---86128516032.pdfIn PDF document text
- http://allamericannursing.com/userfiles/file/refin.pdfIn PDF document text
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/da21eb3245a970dd8ca31a6b3ca3b3a1/2457809536.pdfIn PDF document text
- http://zulaikhatextile.com/userfiles/files/nasefo.pdfIn PDF document text
- http://bclgrouptt.com/userfiles/file/35325723253.pdfIn PDF document text
- https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/1afeaa153b247433b8a1f566ebe28159/meruxijusomekul.pdfIn PDF document text
- https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/1247a304b49a4230d859301dea3b3176/96938385671.pdfIn PDF document text
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072f9c7a2476---dezipadoja.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_off0000e05e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE05E | 5124 bytes |
SHA-256: 2e140882a29f07237b0c5fd21f0f3093c7549dc4fa10ec5dd03f175ceb686d9b |
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font_01_sfnt_off0000f1ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1FF | 10544 bytes |
SHA-256: 7e6cea445422ed8a2fa0b887958588384b52ab92648ec7ed9c0eec4a65d0c111 |
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