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 ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to compromised or disposable domains, suggesting a phishing or SEO spam campaign. The PDF structure and embedded links are consistent with techniques used to distribute malicious content or redirect users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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://drafthe.ru/uplcv?utm_term=xuv300+bs4+price
- https://augsburger-dartliga.de/uploads/file/fodabigi.pdf
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609db0609b397---jurufu.pdf
- http://shannonlakeestates.org/fck_images/file/39120024661.pdf
- http://novichiha.ru/pic/file/88477571701.pdf
- http://abwalabamaave.com/uploads/files/vaniximekiwabofamur.pdf
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/e8c04ffbec91361e2e598aa57f9b477d/7488301893.pdf
- http://diegogenna.it/userfiles/files/lukivululurulokagulepul.pdf
- https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/1b3dmfuetn9b6pp70rjtl0rpd7/64092751077.pdf
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160d9205ba326d---refujodimilufowesa.pdf
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a457ef0d714---22777644509.pdf
- http://eko-inwest.eu/upload/file/molapasivigudewofo.pdf
- https://dnsbp.com/all4help/fckuserfiles/file/bixusakedajikuxeg.pdf
- http://zap-interactive.com/uploads/files/24242468401.pdf
- http://kayapaliinsaat.net/file/23844944332.pdf
- https://apinero.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a9738a5ede---20758715596.pdf
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094b60f4263e---favitenojanafaf.pdf
- http://mayfamilycircle.com/clients/5/53/53cd9f4101e72b768929e5daf979c2da/File/88434221105.pdf
- http://kayapaliinsaat.net/file/63582237606.pdf
- http://elyriacatholic1970.com/clients/7/79/79c6984f8945646ae1b55d50a6b4dbab/File/50791978695.pdf
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/859713951dee19052ee6d745d245f9c7/lumaxi.pdf
- http://szao-spb.ru/images/news/file/pugavovukibi.pdf
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/3c59d582ffa985afbc50443babe0b1fc/porelal.pdf
- http://buddhavehicle.com/userfiles/file/46649981917.pdf
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/0319cd4ad8b310d849ddc6a8e3b2bbf6/45289650581.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_off0000fea1.bin78c172cee523304cbf0ec6f164514a23b04bd0c30a5329296526042eca5bc362 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEA1 | 17120 bytes |
font_01_sfnt_off00012bbe.bin60d9ecf895c80ec3f1281d2e3bbb426a606fd0c62b5ec696372932d0419a4124 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BBE | 10520 bytes |
font_02_sfnt_off000143b0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x143B0 | 16792 bytes |
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