MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress upload directories and other disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall structure strongly indicate a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c92a5e82329---23146240824.pdf
- https://humicdp.com/uploads/2021-07-10/images/files/21608095591.pdf
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adb969bd646---nujesuwut.pdf
- https://pima-alarms.net/slicice/file/turumupusosikowoziv.pdf
- https://vanvoorst.info/uploaded/file/70413911658.pdf
- http://massimomoroni.it/userfiles/files/31069848859.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609158455fcfa---mavolokozupig.pdf
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/2c770db1c13d261d6bdc2ed85c59fb61/bedusobebiwogegisape.pdf
- http://m-camper.ru/ckfinder/userfiles/files/1686361613.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/16085ec3da01c5---gedenalogudasiladuzakabit.pdf
- https://fier-forjat-valimet.ro/ckfinder/userfiles/files/48266060112.pdf
- http://chronicles.ae/userfiles/files/bebenedawiloge.pdf
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/f6287e60c7ad5575e4e54acd0921f397/felavomobuxebakov.pdf
- http://shelton1961.com/clients/35589/File/vodoratomu.pdf
- http://petersonspann.com/clients/3/32/32c4b2f41fa698b5b938e848169c8dcb/File/xonegumidin.pdf
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/44354844b3b1ced569c29b73fbb0cb45/gesogewawufalowode.pdf
- https://denizlihorozu.com/resimler/files/71312039656.pdf
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16086f278d379f---daboxigugesunilewem.pdf
- https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/m3h4gn0332n5mf9kfk6hgpk89g/70904942053.pdf
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/22f6b4688afc59e889f9132b1eb87131/wusubapagodeje.pdf
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085ec1c594a7---14300231115.pdf
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8d277327e6---19445546735.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=system+administrator+experience+resume
- 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_off0000f075.bin25d755545342f192344b570866b85836169f65efdcf9ce3c07bc736c996769fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF075 | 17956 bytes |
font_01_sfnt_off00011f86.bin3679b8b3e770162586a35efe495dccca672c80c3e1f4606da7b98bbb5ca10720 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F86 | 11020 bytes |
font_02_sfnt_off00013931.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13931 | 16792 bytes |
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