MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs pointing to compromised WordPress sites and disposable domains, indicating a link farm designed to lure users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest this PDF is malicious, likely serving as a phishing lure or a distribution point for further malware. No scripts were extracted, but the heuristic findings and URL analysis are sufficient to determine the attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://catamma.ru/uplcv?utm_term=bash+for+cycle PDF link annotation
- http://bezagsecurity.cz/userfiles/kemuwuwanoreruxarafuwix.pdfIn PDF document text
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/bacicbo775s1q8l7l2r77agcl7/ladikeras.pdfIn PDF document text
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/160787eed56a38---49342068055.pdfIn PDF document text
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/ae1d691d0c27a5486222609493ec83e9/limaputigexavix.pdfIn PDF document text
- https://kermiradiatoriai.lt/images/files/35094232604.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/hiuck0jv348qmm6ca76l0c1ia1/medogawixo.pdfIn PDF document text
- https://sambelteri.com/contents//files/2124190383.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d699de4bd7c---fixemilowaduraxexova.pdfIn PDF document text
- https://congchung7.com/upload/file/66512086456.pdfIn PDF document text
- https://haysalon.com/public_html/userfiles/file/dusuledekoserefulab.pdfIn PDF document text
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160966d31b777f---zemimejebikijokuvibapav.pdfIn PDF document text
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4b75a5710b---78225852840.pdfIn PDF document text
- https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/18aa27bfaf5394dd460758a1d256b8ec/48376119206.pdfIn PDF document text
- http://www.haztartasigepszakuzlet.hu/pics/file/41351501962.pdfIn PDF document text
- http://gmei.lt/ckfinder/userfiles/files/xetuk.pdfIn PDF document text
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/49pqj9sore1etraosvvokhjeu2/nenojawitomikaxorul.pdfIn PDF document text
- http://karunb.com/UpLoads/files/97106522922.pdfIn PDF document text
- http://adaviestransportltd.com/userfiles/file/kexadanasetowafetamut.pdfIn PDF document text
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/9d1426a49e6942dc22a49c982b53df56/zalavipopezixabosejonuma.pdfIn PDF document text
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/3e5046a88469476420ad51f8df447e63/19560058663.pdfIn PDF document text
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a532075ab46---sufufozuzezidojuvev.pdfIn PDF document text
- https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/da0ff96f6838cfe88a7d9c4ea043eb3b/42273361866.pdfIn PDF document text
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/cfa133313e38b9dc9a3e11b9ffbe994d/2760069453.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_off0000ba90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA90 | 10304 bytes |
SHA-256: b09d9a9e52e9f6a7028e62554bc47eac9c1ed72ef1b5177e54a3c8289959d279 |
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font_01_sfnt_off0000d200.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD200 | 17124 bytes |
SHA-256: 9f061a795c31fc8948f6fa095f0ad541641b1f56287b205db834c9b9a02dc3e2 |
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font_02_sfnt_off0000fef4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEF4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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