MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to various domains, including those hosted on compromised WordPress sites. The presence of 'utm_term' parameters suggests an attempt to track user engagement with potentially malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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 https://laborke.ru/uplcv?utm_term=jenga+icebreaker+questions+pdf PDF link annotation
- http://asacnfservices.com/ckfinder/userfiles/files/gukobevojalirojeverak.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/16136f269cb940---gabexizumor.pdfIn PDF document text
- http://4bx.pl/public/file/gukefuvilalapuwuwunizon.pdfIn PDF document text
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131502e18f61---xorip.pdfIn PDF document text
- http://arabstina.com/ckfinder/userfiles/files/84488287586.pdfIn PDF document text
- https://tradingphrases.com/userfiles/files/xiletezokemu.pdfIn PDF document text
- http://kursadowicz.pl/Upload/file/fazorokixojumagavixojotax.pdfIn PDF document text
- https://sdhouse.info/ckfinder/userfiles/files/3073474465.pdfIn PDF document text
- http://hurtglass.pl/upload/file/suzuwu.pdfIn PDF document text
- https://legyenegyjonapod.hu/userfiles/files/bepevevunur.pdfIn PDF document text
- http://nena-artspace.com/ckfinder/userfiles/files/84590966169.pdfIn PDF document text
- https://livresdarts.com/ckfinder/userfiles/files/11085181523.pdfIn PDF document text
- https://www.supremecaravans.com.au/application/third_party/ckfinder/userfiles/files/zimizemopaparaxiribegob.pdfIn PDF document text
- https://dentalrud.com/userfiles/file/fagaxajida.pdfIn PDF document text
- https://hsse.hssanesteban.cl/files/7699985509.pdfIn PDF document text
- http://stefanourso.com/public/userfiles/file/kotugufonelamirobarote.pdfIn PDF document text
- http://www.psoevalledeabdalajis.es/ckfinder/userfiles/files/79494566896.pdfIn PDF document text
- http://szcftz.com/upload/zubasevedubupenenulujenim.pdfIn PDF document text
- http://mclarenquartz.in/ci/userfiles/files/muboxixaguvel.pdfIn PDF document text
- http://polimak.pl/userfiles/file/53236909707.pdfIn PDF document text
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16138000940638---28321055124.pdfIn PDF document text
- http://cafehinglung.com/uploads/files/1577676122.pdfIn PDF document text
- https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/161317299ddeb0---43096563436.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_off0000af4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF4C | 15524 bytes |
SHA-256: c928f10a48d74f261c591bc623a0fd906c179f71c1eec5ef9a11c3e5eff037f3 |
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font_01_sfnt_off0000d58c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD58C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000eda3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDA3 | 11220 bytes |
SHA-256: d62347cee1575bef6e9b64ee71525c7d37a166b2a0c6c01f9bcca3b87b6c6894 |
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