MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
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 CMS upload storage, suggesting it's used to distribute further malicious content or phish users. The presence of multiple PDF-specific heuristics related to link farms and compromised uploads reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160728f0b4e699---polorujugupaxitewug.pdf
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/1kthvip8i1208ecd937htn8r27/gopuviwidukinerovif.pdf
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/06c35caa37d298cf3c55a9dd1d17abc0/saboforunotuzukonuk.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/5fdf74b8ebf610cae05e2597f7aa3813/gusatofitiwulizezuvema.pdf
- http://accessiblevehicleservices.com/userfiles/file/gajoluzukapafigop.pdf
- http://beateromer.com/bilder/file/72713391915.pdf
- https://cdpu.net/wp-content/plugins/super-forms/uploads/php/files/a61360a7b269f25f14f9b46517f39aaf/30148635649.pdf
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087d7fcc4d5a---fijasodobafeguj.pdf
- http://michianaorchidsociety.org/clients/2/28/2832e32407c795c8d28ffe68102aa18e/File/7940809467.pdf
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b11b404c82---30852464044.pdf
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160c129e5ea08f---jaxiragodasegotabi.pdf
- http://www.dramayaramendes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606c761884ee5---xiviladaz.pdf
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160843d4926fce---juzedoguk.pdf
- https://binarbaidservices.com/public_html/userfiles/file/lufadewitadufa.pdf
- https://ancoraeducacion.com/images/37155634766.pdf
- http://jyotiacademicpress.org/uploads/file/kiliminajewovananumurozu.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092bd964b2f0---vekumepajabo.pdf
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/n8e6vruco11qukh9ovo2rbe073/25914206177.pdf
- https://soalmatematik.com/userfiles/file/69264360149.pdf
- http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608a2e3a770cf---89801861640.pdf
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609028e34f776---20975909713.pdf
- http://flirdining.com/uploads/files/71501801737.pdf
- http://musorcentrum.hu/files/article/file/zolumiposujudipixil.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=if+i+fell+in+love+with+you+would+you+promise+to+be+true
- 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_off00011843.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11843 | 16792 bytes |
font_01_sfnt_off0001305a.bin53d9a2f87800edbf3335645c7e4da38caa605d00ee5135e70042de95147eabd4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1305A | 11056 bytes |
font_02_sfnt_off000149af.binb533eee0c097fdaef1ea47392bb057a9aed61eae8c14b0df82028d9f0bf0cb36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x149AF | 17020 bytes |
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