MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URLs, many pointing to compromised CMS upload directories, suggesting it functions as a link farm or a lure to phishing/malware sites. The PDF structure and embedded URLs are consistent with phishing campaigns that use malicious documents as attachments.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://oniceh.ru/uplcv?utm_term=assoluto+racing+offline PDF link annotation
- http://bielle-srl.com/userfiles/files/41180875041.pdfIn PDF document text
- https://mmoxx.mn/userfiles/files/77759360970.pdfIn PDF document text
- https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/6030219afdfa1c7206b0b1855185a4f2/91422899520.pdfIn PDF document text
- http://camel-republic.com/media/userfiles/files/kabak.pdfIn PDF document text
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/3d43464aa27b3ce93938a513fde45316/vepuwelaja.pdfIn PDF document text
- http://fibertechnique.com/tmp/file/rovuzalatiketamabev.pdfIn PDF document text
- http://www.awakohchang.com/image/upload/File/6806723973.pdfIn PDF document text
- https://razredna-nastava.net/files/verarimuzavipimezijazamu.pdfIn PDF document text
- http://clarksville.net/wysiwygfiles/file/35240311800.pdfIn PDF document text
- http://studiodebiaggi.eu/userfiles/files/kusazusinexaduror.pdfIn PDF document text
- https://magnettoptan.com/upload/ckfinder/files/fobadatajelusuzeni.pdfIn PDF document text
- http://tuning-zone.eu/userfiles/file/sijorabipemajeferu.pdfIn PDF document text
- https://reazfarah.com/ckfinder/userfiles/files/sobaredugugolefasuval.pdfIn PDF document text
- http://rkenterprisesonline.com/FCKeditor/file/1602953050.pdfIn PDF document text
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/7d993b0f65c91aa05cd3ccbb3f2b2e1b/zizulanig.pdfIn PDF document text
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/16141aa2606bbe---40514106476.pdfIn PDF document text
- https://aksusu.com/upload/files/56989038655.pdfIn PDF document text
- http://espacioschillout.es/images/admin/file/56204881585.pdfIn PDF document text
- https://www.educationsexuelle-ecole.ch/ck/ckfinder/userfiles/files/fifumavuladi.pdfIn PDF document text
- http://bajkolandia-leszno.pl/userfiles/file/gemovafafimiwu.pdfIn PDF document text
- http://stefanourso.com/public/userfiles/file/dapifonorusot.pdfIn PDF document text
- https://www.pessin-location.fr/ckfinder/userfiles/files/94374946602.pdfIn PDF document text
- http://brilsports.ro/userfiles/file///36716393304.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_off0000c2a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC2A8 | 19580 bytes |
SHA-256: 82e584a41e4163a6dcaea75261481df29521c0ac85c99d82e794fecd2f22b7af |
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font_01_sfnt_off0000f5fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5FC | 10592 bytes |
SHA-256: 06697ad5bd6bf32464b32db4613303fdc9fee1ae3e04ee50ff37a01592ecddbb |
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font_02_sfnt_off00010e5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E5C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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