MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
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 various compromised WordPress upload directories and potentially malicious IP addresses. The presence of numerous links to disposable hosting and UTM parameters suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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 http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/059a7f46fbc55c2d415d12c2d42d1251/4258137497.pdf
- https://robertbah.si/files/file/jedajafuleku.pdf
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/94be526aafa0ae9524f96297fd25fea2/regupizadaje.pdf
- http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607100ede0f9e---33827128153.pdf
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/23c2b59fe093188a1f52de9be2c4b793/nupizanonegulinapaxatizob.pdf
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/160bd87fc16df7---90095474441.pdf
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095ad0353b26---wodesevavowonin.pdf
- http://smartarts.bg/userfiles/file/jatuwesesijedovedejuzupuv.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076aba824617---20878180661.pdf
- http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d646466b4---xerezen.pdf
- http://coming-c.com/userfiles/file/wazizes.pdf
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/1af7e6cefdaac329be547ce7798d9829/49183517815.pdf
- http://brmxn.com/userfiles/file/20210515080830_lgkj6d.pdf
- https://lightspec.ca/wp-content/plugins/super-forms/uploads/php/files/f462d95b57b4a5817b0db7c3ccedfaf3/13726930920.pdf
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/160b4ac3026d4c---62728269339.pdf
- http://renovator.cz/files/file/22175267178.pdf
- http://feach.ie/images/uploads/file/jinujutigabusuxigatuvo.pdf
- https://wemservice.com/ckfinder/userfiles/files/77860493565.pdf
- https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/40d63765724ea33c38e09f1bbdbbabdb/97062973527.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ab64d15e9e4---32381594810.pdf
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608300458d4ae---8844422561.pdf
- https://marbeyoyun.com/calisma2/files/uploads/sigebavivowegefobebute.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ea54b246a6---tunirexes.pdf
- https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073337ef21e3---74764804120.pdf
- http://asupuro.com/upload/save_image/files/6979328051.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=story+with+elements+of+short+story
- 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_off0000f9dd.bin4569d2cfbff9032c22cbb2510b0637b069cc23dffcc9470b84e1802016c5ade6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9DD | 10592 bytes |
font_01_sfnt_off000111dd.binf7c3fe8707f9b56e56d6a111fa3a1b87ac3c121dd417d53f07e1885dbd461364 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111DD | 17296 bytes |
font_02_sfnt_off00013e8e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E8E | 16792 bytes |
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