MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple external websites, some of which are hosted on compromised CMS platforms. The presence of numerous URLs, including those with 'utm_term' parameters suggesting tracking, points towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://wastran.ru/uplcv?utm_term=recover+lost+messages+android PDF link annotation
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/161414921be56e---90461030823.pdfIn PDF document text
- http://lesen-und-schenken.de/userfiles/files/fadojelax.pdfIn PDF document text
- http://abwalabamaave.com/uploads/files/54407815308.pdfIn PDF document text
- http://ticaproduce.com/ckfinder/userfiles/files/35285090249.pdfIn PDF document text
- http://word.mn/uploads/assets/52134261475.pdfIn PDF document text
- http://ct-tci.com/cttax/userfiles/files/gumemojekujubulasimi.pdfIn PDF document text
- http://pspectr.ru/userfiles/file/17623307021.pdfIn PDF document text
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/j3lcc79lhjjoppbag6mpnkfo0b/64364005404.pdfIn PDF document text
- https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/f0bf32183812fa265fddb986bf60f3b9/29836865839.pdfIn PDF document text
- http://datacomsystems.cz/userfiles/file/20736745713.pdfIn PDF document text
- http://tvcsoltau.de/userfiles/file/tedaseloleva.pdfIn PDF document text
- https://bravo-hk.com/userfiles/file/74888888713.pdfIn PDF document text
- http://hidropro.hu/upload/96408642918.pdfIn PDF document text
- http://e68momo.com/shopadmin/upload/files/6223215699.pdfIn PDF document text
- http://tfforming.ru/d/files/30272467508.pdfIn PDF document text
- http://www.ags-sib.ru/ckfinder/userfiles/files/jovavasujabimevimuzepo.pdfIn PDF document text
- http://semihkerpiccilervesupersound.com/upload/file/pexarinutej.pdfIn PDF document text
- http://benly-carson.com/product/files/63612848324.pdfIn PDF document text
- http://wsm.hk/images/files/zevunapugagisufiseduw.pdfIn PDF document text
- http://fewo-spreewald-schoetzigk.de/brandenburgtag/img/editor/file/71521610436.pdfIn PDF document text
- http://theurbanbazzaar.com/userfiles/file/45603561042.pdfIn PDF document text
- http://riviera.az/userfiles/file/15161824166.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_off0000c3a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3A8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dbba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBBA | 16264 bytes |
SHA-256: e5c20825e1954973ab6d0ec864802679f08265c7cf4925d4955cd185f1e2aa3a |
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font_02_sfnt_off00010592.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10592 | 10824 bytes |
SHA-256: db32844a23c72ec73b883be15f1b858bca61d6c9a2a739c3f4a8bb34261e3714 |
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