MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document exhibits characteristics of a phishing lure, specifically a payment redirection scam, as indicated by the 'SE_PAYMENT_REDIRECT_LURE' heuristic. The presence of multiple external URIs pointing to compromised WordPress upload directories and link farms suggests an attempt to distribute malicious content or redirect users to phishing sites. The 'SE_CLICKFIX' heuristic further suggests social engineering tactics to trick users into executing commands, potentially to download and execute a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 8
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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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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LUREDocument describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
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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=how+to+change+a+pdf+password
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160989e4692b78---93219170326.pdf
- http://candybeauty.vn/upload/files/8521519862.pdf
- https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/3896e3745dbcb63088096ed84175fd3d/46287931499.pdf
- https://burragebrothers.com/demo/jolie/beta/userfiles/files/ledotixigisaripewogijol.pdf
- http://supermarketdv.ru/files/file/41357280871.pdf
- http://wccflooring.com/userfiles/files/pukuwuduxowupufozizil.pdf
- https://irantruck.ir/data/file/xusopikojojusakir.pdf
- http://neurooperations.com/ckfinder/userfiles/files/tetokuvexuxitasewapireg.pdf
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160a502132ae26---ziser.pdf
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/m7uj5bccl56qcff3il2sbsljn4/55709074645.pdf
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ac9e327f67f---54678150191.pdf
- http://lamelove-zakryti.cz/userfiles/file/59202357039.pdf
- https://karinbentum.nl/uploads/file/fetakadapame.pdf
- http://blackhorsesc.pl/userfiles/file/rigovetegalolebox.pdf
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607960c8159fc---55247792563.pdf
- https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/ckvf4r4fci8i0fju9fesbb8k5s/49603656331.pdf
- http://pkynfe.net/userfiles/file/86596685208.pdf
- http://plnjl.com/userfiles/files/lozowewofojujogafo.pdf
- https://ikansambel.com/contents//files/muxebu.pdf
- http://anhuizhkj.com/upload_fck/file/2021-6-29/20210629093550542141.pdf
- https://108pizza.pl/uploads/userfiles/files/63666419167.pdf
- http://lysfyyy.com/upload/files/zurosaji.pdf
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c3be63a31a---kixelufu.pdf
- https://bamfieldrental.com/userfiles/file/rivoruvu.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_off0000e847.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE847 | 16792 bytes |
font_01_sfnt_off0001005e.bin3a27dd4ef57d86d3c1a1b93922075e5305b7541792fc8a27ad0700347c186458 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1005E | 10836 bytes |
font_02_sfnt_off0001192a.bind6ac6dfed2433d9e3bdae8ed0dc352af588dda3cf6addd314d67b02267fe24bc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1192A | 16708 bytes |
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