MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://drafthe.ru/uplcv?utm_term=vpn+booster+mod+apk PDF link annotation
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/c72qn34lngmp1qjp5gun6g959v/75544421824.pdfIn PDF document text
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/160ac4b04bb1b7---gewibopemo.pdfIn PDF document text
- https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/68e18fb42204010edf2c31627f60d702/7709831747.pdfIn PDF document text
- http://duepassidalcentro.it/userfiles/files/81531121945.pdfIn PDF document text
- http://hutergroup.de/userfiles/file/pozumuveximabapuzupalose.pdfIn PDF document text
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/1608961904aa55---35663424471.pdfIn PDF document text
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/027978c4aed6279070ce122e63a195ff/86262447820.pdfIn PDF document text
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/ju020ron3js7pvlachgma86ogd/gapavisolijemogomiruf.pdfIn PDF document text
- http://winso.tw/userfiles/file/banexatijigat.pdfIn PDF document text
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160706adfbef8c---53805631434.pdfIn PDF document text
- http://urbanconstructions.org/images/uploadedimages/file/pazusas.pdfIn PDF document text
- https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/tl6q59mv8nj03ovb8bhcotllg3/21113660599.pdfIn PDF document text
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160cb952cd6e4c---vidibukaxifigo.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d2fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2FA | 5244 bytes |
SHA-256: 0d316832fe7705fde1b7a40fee7b22922b0dbb0c5263dcc011a1383989e87b8d |
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font_01_sfnt_off0000e4a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4A7 | 1800 bytes |
SHA-256: 6d2a3a16cc464ce72cf05976c7f96a31c93af2202e0dc760c37a694345e222ee |
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font_02_sfnt_off0000ed37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED37 | 11776 bytes |
SHA-256: f6d36e5cbabd881b13d7ccf47b28a0184c53877e5fd794d5e576e18a8938cb82 |
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