MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users. The presence of PDF-specific heuristics like PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM further supports the attack pattern of luring users to external content. No scripts were extracted, but the overall structure and heuristic firings point towards a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://mardeestilos.es/fotos/file/46141499116.pdf In PDF document text
- https://hgindustrial.eu/userfiles/files/32770149778.pdfIn PDF document text
- http://jjmcp.jp/userfiles/Image/file/79319481886.pdfIn PDF document text
- http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ecdbb23855---57631067538.pdfIn PDF document text
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/5v041cn97ls2ii6foifq8l3ned/luzituxobamuxeriguma.pdfIn PDF document text
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f3d8ef1e74---48579460175.pdfIn PDF document text
- http://tindangnhadat.vn/upload/files/68782395626.pdfIn PDF document text
- https://master-service.ro/images/file/konazuja.pdfIn PDF document text
- http://ucinnovation.ru/admin/ckfinder/userfiles/files/bewifomotiwejasijasu.pdfIn PDF document text
- http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160840c95ede5e---83076609426.pdfIn PDF document text
- http://gojjang.com/uploads/files/videwanizojoraso.pdfIn PDF document text
- https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/b0b65d1aff0a5a5647c56d283967baba/74384203773.pdfIn PDF document text
- https://portugaliaimagyarok.com/ckfinder/userfiles/files/31481288387.pdfIn PDF document text
- https://primewestelectrical.com/wp-content/plugins/super-forms/uploads/php/files/df4438a1d862f3340d46bbc8bcda52c4/ferimirisuzopute.pdfIn PDF document text
- https://serviceservice.eu/userfiles/file/69204642240.pdfIn PDF document text
- http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607526463162d---xuwitejovapowumawixowaga.pdfPDF link annotation
- http://pincailight.com/zk/UploadFile/file/2021072607013673499.pdfIn PDF document text
- https://sluganarodu.org/userfiles/files/dudebetiwugavukar.pdfIn PDF document text
- http://tyextractor.com/d/files/66028082367.pdfIn PDF document text
- http://deepakbatteries.com/uploads/file/revuza.pdfIn PDF document text
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/ea2901bd6122fa80d41ae118a24779bb/lakipakukasusejufun.pdfIn PDF document text
- http://rdmsrl.it/userfiles/files/51613276594.pdfIn PDF document text
- http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078097c37d7d---laligazegakopif.pdfIn PDF document text
- http://spostojow.pl/userfiles/file/walanoluduvo.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=english+vowel+sounds+pronunciation+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c10e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC10E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d925.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD925 | 11132 bytes |
SHA-256: 693e5100c94422021dcb27959de77c22e1884c82e1d9193cd9d3311ff9f70b73 |
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font_02_sfnt_off0000f2ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2EC | 17900 bytes |
SHA-256: 6d505b586ce1bd306bbaac6f2ccc8ce0dedb023a62df731de7bd46f9ca805309 |
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