MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that point to compromised WordPress sites and other disposable hosting, acting as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure points to a malicious link distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://smidgel.ru/uplcv?utm_term=stock+android+images PDF link annotation
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140c3deb859e---pojasuvavodesexevewijus.pdfIn PDF document text
- http://hnsunnyfood.com/d/files/woretolinamim.pdfIn PDF document text
- http://heatexchangersolution.com/upload_fck/file/2021-9-4/20210904052812113597.pdfIn PDF document text
- http://exms.fr/sites/default/files/file/pefoliraxupifetinirufebok.pdfIn PDF document text
- http://chipublichouse.com/ckfinder/userfiles/files/kagikatubigugumurose.pdfIn PDF document text
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb60227c4c---letugokugi.pdfIn PDF document text
- https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613c0e05bb63c---16508918134.pdfIn PDF document text
- http://vodnik48.ru/content/file/8967154206.pdfIn PDF document text
- http://paroissedementon.fr/upload/files/41120677463.pdfIn PDF document text
- http://cga82.com/admin/File/71127246825.pdfIn PDF document text
- http://tinhdauvietnam.vn/upload/files/folorurajidaru.pdfIn PDF document text
- http://zhymwz.com/upfile/file/78005504568.pdfIn PDF document text
- https://trinityautorepairs.com/uploads/files/6070096637.pdfIn PDF document text
- http://indemo.pl/Image/files/22585111439.pdfIn PDF document text
- https://pyccenter.com/images/Upload/file/7851440298.pdfIn PDF document text
- http://archpiudue.com/userfiles/files/ruxawozedebemijeromuzise.pdfIn PDF document text
- https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/2d5adceb6368884781116f67dadc9074/vukugaregalezuli.pdfIn PDF document text
- http://yarpb.ru/pic/userfile/91909571536.pdfIn PDF document text
- http://paulgraphics.paulsfashion.in/files/72431628301.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/161387dc92861a---kulasijikefikesabamub.pdfIn PDF document text
- http://myucpb.net/userfiles/file/gonivi.pdfIn PDF document text
- http://goksirkrupskimlyn.pl/img/upload/files/zilamenuwadirul.pdfIn 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b1cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1CF | 14732 bytes |
SHA-256: 0222e869fa760d438b30914a71e2f56265534d553755df022dab59acc1b61107 |
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font_01_sfnt_off0000d6dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6DD | 10836 bytes |
SHA-256: e312bbe2654e99028abeb1b7e4ca744cf6288da6fbe6c48ded17698e254d02af |
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font_02_sfnt_off0000efa9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFA9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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