MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress upload directories, suggesting a phishing or redirection scheme. The presence of external URIs and the structure of the PDF point towards an attempt to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://smidgel.ru/uplcv?utm_term=bw+capps+on+highway+80
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606c73f68fded---75520621985.pdf
- https://bharatbiodiesel.com/userfiles/file/mubiji.pdf
- http://pijntherapie.be/uploads/files/83307891595.pdf
- http://www.prieteniitehnicii.ro/documente/file/betip.pdf
- https://deltarealestate-eg.com/userfiles/file/xuvirizajolalipi.pdf
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607ece13eefa7---12749586228.pdf
- http://longarmquiltacademy.net/fckeditor/userfiles/file/muleganasom.pdf
- http://macabrey-luthier.fr/data/Files/kazipivutepuwitipebiwej.pdf
- http://arslanemlak.come/file/xifugujulakamijene.pdf
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a328758ad47---jadevefebamozununu.pdf
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/e99a0b1e27a6991b4941ae52ff75d08d/rezapadezidexiziwewala.pdf
- https://sealordhotels.com/ckfinder/userfiles/files/41945173615.pdf
- https://rybczewice.pl/userfiles/file/63344839540.pdf
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/160725e73f08d9---zenuxavanuxewigorelovu.pdf
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609022d71571a---favimexopepawuzefo.pdf
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160758424b6009---zawexipowo.pdf
- http://omgmediatank.com/userfiles/files/nojogemajawaza.pdf
- http://hyperasp.net/userfiles/file/82135497426.pdf
- https://www.schroedersales.com/wp-content/plugins/super-forms/uploads/php/files/acf72a0bdc589dcd857ab5346e4df969/79826692423.pdf
- http://angelescare.com/userfiles/file/xesoropopar.pdf
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1606c77cb8afa5---95902067296.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1607a1527ab7ab---sakeje.pdf
- http://dungcucaytrong.com/images/files/wuxufinepumelamaxaxit.pdf
- http://isgsrl.it/images/file/38347386807.pdf
- http://aelma.com/sites/default/userfiles/file/gemuzufigesejus.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_off00010082.bin5a9c6ed375c8a916682d468a243047ba382facdd5d24d8e578a139f65d7b9393 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10082 | 10860 bytes |
font_01_sfnt_off000119a2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119A2 | 16792 bytes |
font_02_sfnt_off000131b4.bina4a8c3a4ee473a644e0f17cbef8ad444f1ba5837a75f889ae0f93b71afb8e919 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131B4 | 17304 bytes |
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