MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress uploads or disposable hosting, indicating a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, suggesting an attempt to hide its true purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://archism.ru/uplcv?utm_term=roadmap+for+android+app+development PDF link annotation
- https://driftwoodcc.com/userfiles/files/dakonudibifazijenokuv.pdfIn PDF document text
- https://texasbordervolunteers.org/userfiles/file/wotobalirumumoket.pdfIn PDF document text
- http://nessium.fr/userfiles/file/ruzozalujid.pdfIn PDF document text
- https://mkontakt.com/dat/file/6520063078.pdfIn PDF document text
- http://sochi-vitrazhi.ru/ckfinder/userfiles/files/70621153063.pdfIn PDF document text
- https://maxflowfans.com/userfiles/file/35241546781.pdfIn PDF document text
- https://heks-tech.com/app/webroot/userfiles/files/todaz.pdfIn PDF document text
- http://www.biogreeno.com/cms/ckfinder/userfiles/files/13148167557.pdfIn PDF document text
- http://www.keizerco.nl/userFiles/file/pufonojabimexogezugil.pdfIn PDF document text
- http://xn--80adpfaaeictf0c6c7i.xn--p1ai/public/file/62650723424.pdfIn PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132a7d4519aa---87505798384.pdfIn PDF document text
- https://ysh.my/userfiles/file/witorabobikabisex.pdfIn PDF document text
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b7e51c3026---jojekisoligazavuw.pdfIn PDF document text
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/5cad143628508b4535c0d69f24a4b191/51181042253.pdfIn PDF document text
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613d36dc2a25b---bawixowov.pdfIn PDF document text
- https://burlingame.com/wysiwygfiles/file/17217909761.pdfIn PDF document text
- http://yey.uw52.com/upload/files/nefatopinoposuvosakusu.pdfIn PDF document text
- http://www.tobywells.org/media/fckdir/file/1438681177.pdfIn PDF document text
- https://haltia.mx/sii/ckfinder/userfiles/files/ganiligukelowukoropif.pdfIn PDF document text
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/a69a68936d2a242b1357e64223f5f633/65138218917.pdfIn PDF document text
- http://erulingua.hu/uploads/content_files/files/13816180475.pdfIn PDF document text
- http://huntland.hu/upload/file/tugivinokokasafow.pdfIn PDF document text
- https://digireg.ch/upload/32216501205.pdfIn PDF document text
- http://polyalpan.hu/_user/file/23254939803.pdfIn PDF document text
- http://topoint.cc/userfiles/fckFile/20210916185202.pdfIn PDF document text
- 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_off0000b471.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB471 | 10604 bytes |
SHA-256: 903199813ba611ac0dd7a5b8a5e86c807dc6564f4185c00439931fe15d91dff7 |
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font_01_sfnt_off0000cca3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCA3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e4b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4B5 | 15116 bytes |
SHA-256: 37d59ede571e665f2bd43c8c0d76d1aae339cca74ccabdedb885e7a382787dc9 |
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