MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised websites and disposable hosting, suggesting a link farm designed to redirect users. The presence of external URIs and compromised CMS upload links indicates a likely attempt to distribute further malicious content or phish for credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9878
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://catamma.ru/uplcv?utm_term=current+issues+and+enduring+questions+12th+edition+online+pdf PDF link annotation
- https://ichibaninfotech.com/ckfinder/userfiles/files/vekosatujige.pdfIn PDF document text
- http://resortvillairene.it/userfiles/files/8133099339.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c7ab7c171b---76040253824.pdfIn PDF document text
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/a28986aec8836a4132422ca466d06680/posevelepanejaxuxeg.pdfIn PDF document text
- https://prospr.fr/ckfinder/userfiles/files/58742412798.pdfIn PDF document text
- http://mynigaoe.com/upload/file/20210523062430.pdfIn PDF document text
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/83413c47d42d0919ec062239cfd6ccb3/sobezizesiwidijeziwo.pdfIn PDF document text
- https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4b8d05f397---6117070492.pdfIn PDF document text
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16085f3847f315---tefinatanogoberekoderozu.pdfIn PDF document text
- http://cafesezony.ru/fck_editor_files/files/tinajiporitu.pdfIn PDF document text
- https://dudikom.pl/userfiles/file/16833693144.pdfIn PDF document text
- http://hataylezzeti.com/resimler/files/jujunu.pdfIn PDF document text
- https://remoteyourstaff.com/calisma2/files/uploads/terutivukita.pdfIn PDF document text
- http://theartofdesign.nl/ckfinder/userfiles/files/76690006993.pdfIn PDF document text
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607faafacb1db---96345989773.pdfIn PDF document text
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d4a8fc21891---semik.pdfIn PDF document text
- http://granitemountainranch.net/userimages/xinuzabenojizenagetivi.pdfIn PDF document text
- http://vitalenzyme.com/uploads/fckupload/file/66361594294.pdfIn PDF document text
- http://studiocommercialedelpiano.it/userfiles/files/72210006980.pdfIn PDF document text
- http://medicalproduct.hu/images/files/pimabisa.pdfIn PDF document text
- http://gmei.lt/ckfinder/userfiles/files/43296862856.pdfIn PDF document text
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074c07688269---ropawo.pdfIn PDF document text
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160835bbb630ab---ximuregejolixogeto.pdfIn PDF document text
- https://kompaspt2.com/contents//files/fiwibukik.pdfIn PDF document text
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/9c100efd0f15d1a1eae5652fe8160e0c/xunemofikan.pdfIn PDF document text
- http://tsg-edinstvo.ru/userfiles/file/42944184033.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_off00018a28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18A28 | 11224 bytes |
SHA-256: 85d2b0dae7c7db802118d13193e498b083ab090f2920d7defae7ff0aec38e231 |
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font_01_sfnt_off0001a3ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A3EF | 16892 bytes |
SHA-256: 66219bbfad7086ae163f4aef80f66e660f1da27cb59946adcaaf7f66f1db6bed |
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font_02_sfnt_off0001cfb3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CFB3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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