MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall structure indicate an attempt to distribute malware or conduct phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://ketchas.ru/uplcv?utm_term=nsaids+and+antihypertensives
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160a7a7f15c6e1---60026792410.pdf
- http://remaining-mc.de/userfiles/file/423129746.pdf
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bedf330bcd8---lefatewebegexijaza.pdf
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/v5m2c6fk7p6ef89sk6muc81pf6/5486821862.pdf
- http://www.onlinetemsilci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc76163ab2---robasetexumaniz.pdf
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/7fghkffo4cug14l13c8ba25c42/lepebi.pdf
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbf0a82d5dc---47144984905.pdf
- http://www.huntsvillepr.com/files/files/fororere.pdf
- https://arch.ua/ckfinder/userfiles/files/ramibujoxulojonuneteral.pdf
- http://abpaluso.com/upload/file/50714458018.pdf
- http://ongnuocdenhat.com/upload/files/kekazixigewub.pdf
- http://busangh.com/attfile/fckimg/file///20210606165756_593556380.pdf
- http://aire-limpio.com/img/editor/file/63330668345.pdf
- http://unityproductions.com/upload/files/suzesewufewodumabuseg.pdf
- http://colorfusion.us/admin/images/file/78689179049.pdf
- http://banghetretunhien.com/media/ftp/file/gumisufifi.pdf
- https://ka-base.no/images_content/file/94009030755.pdf
- https://svltv.in/userfiles/files/judazofatirikufatuv.pdf
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/11c245dfd7e4216ff630299346583f5b/nasonolalaterarelunaduz.pdf
- https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/cadbee0f4c670b65b3940ba5415175ad/pujipe.pdf
- http://www.cenlaenvironmental.com/siteuploads/editorimg/file/mujolosum.pdf
- http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cd92bd5b28---fajokubeme.pdf
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9c61438829---geboleru.pdf
- http://hainescentreasia.com/images/file/binikafibumediboganiweru.pdf
- http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/9602b304079386bedcd998ce7fac8803/surafenitipidum.pdf
- 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_off0000ec2c.bin9bb71b5ca951fd3dc84184940ad0edc185f037eb2052a1b625a47b40be5f5e16 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC2C | 10480 bytes |
font_01_sfnt_off000103ef.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103EF | 16792 bytes |
font_02_sfnt_off00011c01.bin03ab965f5a8ac4e9e67beb82978f43110530a8de715a74b20983a71527664095 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C01 | 17276 bytes |
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