MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan distribution attempt. It contains numerous links pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and link farms on disposable hosting further supports this malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://crysiq.ru/uplcv?utm_term=itching+feet+fingers+in+winter
- https://jfefood.com/wp-content/plugins/super-forms/uploads/php/files/560b88520f068f451e3938484c8a7220/17651864113.pdf
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/v25b4ldvofm7i9g733dqlvdu59/weguniminumoko.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cedc4e0510e---63346452678.pdf
- http://amon-syotengai.com/userfiles/file/mejarilirudowekipug.pdf
- http://jshtextile.com/UserFiles/file///87319920066.pdf
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/1lrbfos4u93srupo46q3ut3cgt/rigejadiwegopeb.pdf
- http://aeronautike.com/userfiles/file/sijivakixolevub.pdf
- https://ambientltg.com/wp-content/plugins/super-forms/uploads/php/files/90c0946b773dbfe4c7f007fbe7a84eaf/vijinajuzofojopulepuladaz.pdf
- https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/21ba349ac5da32d879021e6a84af9471/42719312850.pdf
- http://pericosrentcar.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160b0ef5683e62---76029693725.pdf
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/85b192ec4785d088bba0d8e6bfbd6798/wipetuzuxidorixufok.pdf
- http://baigeleather.com/userfiles/file/fujiduwotavu.pdf
- http://adria-ex.com/images/blog//file/dimusudu.pdf
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/p3hcfkchu83v78e1l105r34191/61414096104.pdf
- http://mvpvo.ru/userfiles/file/39911908909.pdf
- https://burmesecatclub.nz/wp-content/plugins/super-forms/uploads/php/files/2f4bf545769a672d886a6bef7980955c/50573484524.pdf
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16086c123146ac---fidimigisevipofuzugasod.pdf
- http://axwelindia.com/uploads/63437553963.pdf
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607701d28dbfa---denupazodubukiw.pdf
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/25106002794.pdf
- http://ieeepes-thailand.org/app/webroot/files/files/sevevemafadugexamutixer.pdf
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7c46128900---vanusu.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_off0001005a.binecfb0f50a6c00eae0ee64188c26a95165e5bbc942df22ee8648e6753207cff13 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1005A | 18544 bytes |
font_01_sfnt_off0001303d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1303D | 16792 bytes |
font_02_sfnt_off00014854.binb71d931950658e2029509cbe454e4e3931a660a4cf50d7dd9113f2aa470473f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14854 | 10324 bytes |
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