MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised CMS upload directories, suggesting a phishing or malware distribution lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body is heavily obfuscated and appears to be non-readable content generated by wkhtmltopdf, rather than user-facing text.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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 http://clubesquilacoma.com/uploads/files/5587423642.pdf
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f88ff648ba---mimapominabozetupitagum.pdf
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/ffb90b09e5d81a446b08fca0b4659b9e/fediwolobimerepa.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c942743e6b6---savijililunometuvug.pdf
- https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/1f2e7618abb81fdaaf0527af35cfa27d/zajaduwomu.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d8a098da0c---28465086147.pdf
- https://rasorestefano.it/file/patire.pdf
- https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/f155f566196c27a8289df567308f6062/44748945130.pdf
- https://dimensionshoppe.com/alpha/ckfinder/userfiles/files/12241058465.pdf
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/fe4729d8ce3008ed89b9b848de1f41c3/78076150097.pdf
- http://keigan-productions.com/clients/863431/File/95947879973.pdf
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d88ee8b5372---redeko.pdf
- https://iwnta.com/userfiles/file/jazejatume.pdf
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3e8912a75---62615395142.pdf
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1607ddfa5659d8---folivemebamosowodorot.pdf
- http://stasta.com/userfiles/file/40766859091.pdf
- http://project-st.ru/userfiles/file/woxejovaxebezuwixofoguj.pdf
- http://akcjonariusz.com/UserFiles/file/57724820145.pdf
- http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b0c48950b9f---41806865739.pdf
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce601053d2---76858564300.pdf
- https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ba39fc333a---20735290492.pdf
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160741531bde7a---71042443353.pdf
- http://assushop.com/userfiles/assushop.com/file/wetasipube.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=how+to+fix+xbox+360+controller+joystick
- 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_off0000f8db.bin82aae43afbef2e5c64f27c7922f7fd633e7f1394a3a15749f2bc5070a347907c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8DB | 17132 bytes |
font_01_sfnt_off0001256f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1256F | 16792 bytes |
font_02_sfnt_off00013d86.bine621d2c59a4b07e194ff000bbd0cf349fcb32917a1f4267263adef0d7941edd4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D86 | 11284 bytes |
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