MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting. These links likely serve as a distribution mechanism for phishing or further malware, aligning with the Spearphishing Attachment technique.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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://irlanc.ru/uplcv?utm_term=tax+litigation+meaning
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/16072570ad2e21---3227643223.pdf
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083c2253755b---239090002.pdf
- https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160807b9578946---kokikazomedobes.pdf
- https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/4olja806kp8289903fidj1bu9s/zawizalagikotijofibamabat.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160821c392b0ce---bosinoridopugivusex.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1608a138567bd7---batopip.pdf
- https://betentour.com/sites/default/files/file/maxizexu.pdf
- http://aiswaryamatrimonials.com/fck_uploads/file/taxivuxisiwonip.pdf
- http://duonglaohanoi.com/userfiles/file/24059902052.pdf
- http://podlahypilat.cz/admin/file/94131718819.pdf
- http://china-zzld.com/uploadfile/file///2021061111421148.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf7520541d9---53635195810.pdf
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090408543d57---52291314601.pdf
- http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8d26d019f9---debiwudemegifuzazupevul.pdf
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c7b91a9300---9746207805.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090b72aa27dc---38885732412.pdf
- https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/cfb4a90fbf6e6f776da99190c86ee96d/22126211204.pdf
- http://hart-metale.pl/gimnazjum/userfiles/file/35817513353.pdf
- http://prinsart.ro/uploads/files/91910248010.pdf
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/ejkvb7u32d3cafv33ealpobcin/voxukitodoribaxisarufawe.pdf
- https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c008b554d---19869472104.pdf
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3d7d20259f---gijenuwesidikogovulekepa.pdf
- https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/8e00342ca6bac9e2734dafc93e598caf/41681600619.pdf
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/fed89eb721a943dc1e7372674a35fd19/24418498417.pdf
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/7bbe218af97c48d38017878a17cf1a6d/58353833143.pdf
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/6f293b9d117158fb883f6f4e2178f3a8/2765768848.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_off0000ecd8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECD8 | 16792 bytes |
font_01_sfnt_off000104ef.bin177c9427b43e16d8eb8b27f0bea6fe8e54f7f282a0d53b5312d3e2063c0069b8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104EF | 10248 bytes |
font_02_sfnt_off00011bf1.binb07af12349c1b8f96e43d276040e2ea6858b467f50524c153400a1e25e89b998 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BF1 | 16712 bytes |
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