MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains a large number of embedded URLs, many of which point to compromised WordPress sites and potentially disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The presence of multiple external URIs and the nature of the hosting indicate a high likelihood of directing users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://cructi.ru/uplcv?utm_term=opioids+in+system
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609285822011d---11771455720.pdf
- http://toyotarenta.net/FileData/ckfinder/files/20210709_4E96D91036799E68.pdf
- http://tpdw.pl/userfiles/file/13079394340.pdf
- http://frangarcia.eu/upload/file/dojapalasuxi.pdf
- http://tilestone-pools.com/i/File/99197305674.pdf
- http://bogelaipigeon.com/upload/file/xusedapuwibopinawidatinok.pdf
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160b125181d0bf---rivexoti.pdf
- http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/16092b5e8f2868---20355789231.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/cce0lb6hhja2ba7ss72j4vmjt3/79942417187.pdf
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160c89d17bfaa1---geleranawep.pdf
- https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/16099fdd34cabb---11781978858.pdf
- http://cuatro-pr.org/sites/default/files/file/37038644237.pdf
- http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609a416973216---46886385093.pdf
- http://niezapominajkowo.eu/userfiles/file/mefuxagodeve.pdf
- http://peak-experience-japan.com/68121961264.pdf
- https://roc.mn/uploads/files/nawokasuxamovofotivo.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077609b94267---fugunowag.pdf
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/e4cafc57b9a4081391861dc5f7672e1b/76114702024.pdf
- https://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/8cf9b074e27ded6c149d2b306bccd036/43067234220.pdf
- http://brenno-tojestto.pl/userfiles/file/rebokadokajesige.pdf
- https://asthasupermarket.com/userfiles/file/garikamakojokevigerij.pdf
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/381d9e52f1746ed7ba56881e0b127f43/27428484380.pdf
- https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082a1d320345---87376137491.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_off0000eaaa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAAA | 16792 bytes |
font_01_sfnt_off000102bc.binebf5bd8f93c1beb7b422d3c03150adb82e3374ed244ed05a1ab6e0baeb30f34c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102BC | 16676 bytes |
font_02_sfnt_off00012df9.bin1511b9b49dcedf61b9cbda4e9915372fcc567aef29e3b071b5478d2f912178fa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DF9 | 10384 bytes |
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