MALICIOUS
156
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. It functions as a link farm, directing users to multiple external websites, many of which are hosted on compromised WordPress installations. The presence of numerous links and the use of 'utm_term' parameters suggest an attempt to drive traffic for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://infrive.ru/uplcv?utm_term=how+to+block+certain+emails
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079475634d33---duredirutawe.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16089515f31ba5---26609850356.pdf
- http://runningrhinelanderrabbitry.com/clients/875187/File/79598806863.pdf
- http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e750c03d23---19806947017.pdf
- https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/eccc41c4a8ecf22143bfe86d87c08075/49625814025.pdf
- http://work4shop.cz/userfiles/file/denugigunoletawidaza.pdf
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/d36be4416fba8dca2b57b39b723f7770/43639614417.pdf
- http://immobiliareborghi.com/userfiles/files/32346773792.pdf
- https://bangprice.combangprice.com/beta/cms_image/file/71315317518.pdf
- http://eventcompany.org/clients/e/e3/e30ef11cf4efe639fe6592aa37b9cb94/File/woxumagemanowujodulugu.pdf
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16073f0af024be---zakewupofiw.pdf
- http://solemarservizi.it/userfiles/files/wukobijeb.pdf
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/038fe4bba1164da7e030af1a109f2829/zibatubenozolubunure.pdf
- http://accessprecision.com/userfiles/file/12128420875.pdf
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160892ac5e36c5---jenajagepexinapum.pdf
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/5s307pq21g44012n0fccc956s5/82849482006.pdf
- https://resonanceacteurs.nl/userfiles/file/84099400798.pdf
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5f26bf076---97457547989.pdf
- http://helloshoppingnepal.com/userfiles/file/18424765548.pdf
- http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160709647a5dc2---2497373211.pdf
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095c93de4542---kizekelapelonu.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_off0000d6b2.bin73f5ea918450c6b9c4c4cd9c1f2092671a73cb38b14f2cb4bfdc52e4e8d031ba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6B2 | 10700 bytes |
font_01_sfnt_off0000ef4d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF4D | 16792 bytes |
font_02_sfnt_off0001075f.bin390e888d8cba08dc88ecf8319bc18bc16b8baa1468b1ef3e00e228861ff8f15c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1075F | 17000 bytes |
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