MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing an embedded JavaScript stream, which is a common technique for delivering malicious content. The PDF also features a large number of external links, many of which point to compromised WordPress sites, indicating a link farm designed to redirect users. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079a8ff31712---4926575651.pdf
- http://www.smartlandgroup.com//ckfinder/userfiles/files/kobugavaxanenafaruberojow.pdf
- https://unique.global/wp-content/plugins/super-forms/uploads/php/files/5f071c16bcd45f9cab9457d5ca91ae76/37143093736.pdf
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/a4iekhpfjh1mfl6iocsccfag01/98639249204.pdf
- https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/473cj7jram4c8koami9t4l97na/pugekakajuz.pdf
- http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ebafb7ebb3---goxakugawuxu.pdf
- https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/ee42c1b2addf54c4061e5f0a1cd363ac/ramiwolitagixe.pdf
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dff6083e6fa---sofikuteparubom.pdf
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8e26a05b4c---59718906870.pdf
- http://soluzionebenessere.eu/userfiles/files/64702114153.pdf
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608badd6666f1---7771127210.pdf
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/obk09a7m1qfeuddg7bpksuf2l1/30186268040.pdf
- http://sosonomo.com/ckfinder/userfiles/files/fixedutekefamisubulo.pdf
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/c0fcc8379d1b971a0e99d61e708a68f0/nanebaxil.pdf
- http://algeos.us/js/ckfinder/userfiles/files/45665951207.pdf
- https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160797aabe4a16---84550751301.pdf
- https://cleaner.pl/userfiles/file/40852730866.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609411de5ec38---begusomafemesaj.pdf
- https://parklanehotel.asia/userfiles/file/5979157022.pdf
- https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086bad5e278c---gufesujedege.pdf
- https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/nkaiqfothaglat82qhh4e1eudh/tijofirobetirij.pdf
- https://medsplus.us/admin/images/file/9060952370.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=is+steak+good+on+george+foreman+grill
- 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_off0000f252.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF252 | 16792 bytes |
font_01_sfnt_off00010a69.bin8ff7b338eb94ac4e9cf285e21584440283d2e004915696da5aa658f69c1c1474 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A69 | 10740 bytes |
font_02_sfnt_off000122db.bineba2c23799f336cb31d855892adc11a3daac445001897414ee162fe77c84d6c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122DB | 17164 bytes |
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