MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple compromised websites and disposable hosting domains. These links likely serve as lures for phishing attacks or to distribute further malware payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://crewmak.ru/uplcv?utm_term=mechanical+engineering+manuals
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/4b5c7257c9cfa052aab58655ad378acf/raxabe.pdf
- http://upperdublin1970.com/clients/3/3b/3b2fb281f4756d03d37a29c41a8c1d95/File/87969225126.pdf
- https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/5fd2bcde639483da2836700f759954b8/58096074247.pdf
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bf3da3396d3---47701636137.pdf
- http://perfectionistpaintingnj.com/ckfinder/userfiles/files/60951559356.pdf
- http://notarbrazda.cz/userfiles/file/90624054474.pdf
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/953a4e9e77a72c6fb65b0f46ea6fff24/92246394538.pdf
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d6013dc746d---57222193196.pdf
- http://efuturesthai.com/uploads/files/66183920333.pdf
- http://qlinairnv.be/userfiles/file/pazadilupifuvaperomu.pdf
- http://thehonourride.ca/clients/c/c2/c2a221447f3e921143a55eca482c8289/File/pevutisivovumonew.pdf
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/1607de1b2f3449---sevepovoguzibozipopir.pdf
- http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/160c19b874f313---doxakuv.pdf
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/d6ccbfe2b88b0129d5bb34ea5b20cd76/80345241548.pdf
- http://asbazainville.org/userfiles/file/5679224874.pdf
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/sp9jn1rcf8tv7h36jsihn9dg34/23441779661.pdf
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/9f0b7ad5d97549a6dc2b830e3187274f/5315095158.pdf
- https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/a7eced6a96f1a220df67fb8000b7d8e0/16081673707.pdf
- http://shinies.ru/img/lib/file/95063447914.pdf
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b804db3741a---zikotelatumuzo.pdf
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b5638807fb9---zamupove.pdf
- https://vnsteeldetailing.com/UserFiles/files/85416530820.pdf
- http://hzjksj.com/images/upload/File/52797170966.pdf
- http://greece-ex.com/likepazejeletajumowojon.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_off0000e750.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE750 | 16792 bytes |
font_01_sfnt_off0000ff62.bin7668b364204ed5bae5ed78c84061ac66c2e84962e0886b120337620218a8d34c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF62 | 17080 bytes |
font_02_sfnt_off00012c1f.bin7ac37173f5d0fb7a392a1547b25ccc7a207cce279f6ea94b14edcab457016c36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C1F | 10552 bytes |
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