MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS platforms. The presence of numerous URLs, including those with UTM parameters, suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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=mi-pse-s2-iv+installation+manual PDF link annotation
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16087e305128b3---kanuk.pdfIn PDF document text
- http://www.propper-droppers.nl/files/file/lexapufu.pdfIn PDF document text
- https://travelworld.ro/userfiles/file/14643422355.pdfIn PDF document text
- https://wintechindia.in/ckfinder/userfiles/files/11808991201.pdfIn PDF document text
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/4d39462ceb3be848475d03c5172a804b/wotizuwolomebimewalar.pdfIn PDF document text
- http://cokhibaosang.com/media/ftp/file/86191475792.pdfIn PDF document text
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd7ee98b0b2---78668189642.pdfIn PDF document text
- https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/31fbe366102d200c184d4bc74dd01506/47421714904.pdfIn PDF document text
- https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/a0b74549797bd7cbbefe894ebbc8c49b/mezuzevesajef.pdfIn PDF document text
- http://macabrey-luthier.fr/data/Files/zezumebemom.pdfIn PDF document text
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609eb115cb9c6---sazux.pdfIn PDF document text
- http://yacpa.org/yacpafiles/file/zamif.pdfIn PDF document text
- https://cbdc.co/uploads/ckfinder/userfiles/files/12424093600.pdfIn PDF document text
- http://denki-shonan.com/uploadsfile/dafuritamori.pdfIn PDF document text
- http://erictex.com/ufiles/files/loxifunejigi.pdfIn PDF document text
- https://worldmedglobal.com/userfiles/files/zexoruvovebepidagatobota.pdfIn PDF document text
- https://247christianity.org/fckeditor/userfiles/file/digupexavoze1628348097.pdfIn PDF document text
- http://ozanatalan.com/iboard/includes/userfiles/files/wilukew.pdfIn PDF document text
- https://responsible-tourism-alliance.com/content_file/files/14602240436.pdfIn PDF document text
- http://elai.kz/upload//2021/08files/210812201419182874vuxug.pdfIn PDF document text
- http://cymrozgreatdanes.com/clients/1/1a/1a407d8ccac5525c71aaafb6b4664123/File/89846714511.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc69fca562---52379498511.pdfIn PDF document text
- https://marathonroller.com/userfiles/files/47272999439.pdfIn PDF document text
- http://bright-mineral.com/uploadfile/file/2021061710512569.pdfIn PDF document text
- http://edallyshop.com/upload/files/gimunoruwanuzejupedaruki.pdfIn PDF document text
- https://datxeninhbinh.com/data/dulieu/files/visedu.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_off0000c682.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC682 | 17872 bytes |
SHA-256: 8fa0c3d614f71ef84ca6f41630a19661bce938b0e408f606de3446f03392f1af |
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font_01_sfnt_off0000f44b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF44B | 10624 bytes |
SHA-256: 547227850bd1b4fda3df5c2aab9ad8322d7ac775f5194886d792a7012db253a1 |
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font_02_sfnt_off00010cb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CB9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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