MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs, many hosted on compromised or disposable domains, indicating a link farm designed to redirect users. The presence of embedded JavaScript and ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a malicious intent, likely phishing or malware delivery. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://wastran.ru/uplcv?utm_term=kindle+can+read+pdf
- http://ceramkgres.ru/userfiles/file/jowixamobemikux.pdf
- http://dangkydoanhnghiep.org/hinhanh_fckeditor/file/lukodixitamomixezetapifa.pdf
- http://staropolski.net/Upload/file/71233244358.pdf
- http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/xawagosak.pdf
- https://www.ijestr.com/ckfinder/userfiles/files/vizarasomevukaj.pdf
- http://termocity.by/pics/files/mugik.pdf
- http://nuklearmedizin-amro.de/userfiles/file/malezulixilasuxudija.pdf
- http://lizhechem.com/upload/files/43298426049.pdf
- http://daegyung.kr/userfiles/file/20210917213104.pdf
- http://dga.gr/ILC/img/file/24608268445.pdf
- http://parentini.it/userfiles/files/88631713711.pdf
- http://palyavalaszto.hu/teszt/upload/file/86289362783.pdf
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cfafe9aaa8---41869179907.pdf
- http://www.performhabitat.fr/bundles/astadmin/js/ckfinder/userfiles/files/30346066354.pdf
- http://eqletstalk.com/uploads/files/202109171953094275.pdf
- http://nutronicltd.com/userfiles/file/24420260174.pdf
- http://jiehuist.com/userfiles/files/tipukad.pdf
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/6caf780eb04bb954cba2ae6b6b82c614/kejujemag.pdf
- http://www.fonfe.com/uploads/files/tigagunobozifaxurenateto.pdf
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/9e62e0767c4cd7e0dd2656f0e32e6633/pekafubesetojesagavone.pdf
- http://lakesnwoodskerala.com/uploads/file/sejofixeleromubatona.pdf
- https://burgaseguros.com/userfiles/file/78899742753.pdf
- http://metaglas.kr/userData/board/file/11837420127.pdf
- 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_off0000f576.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF576 | 16792 bytes |
font_01_sfnt_off00010d8d.bin940c34f0b7da39f1a8df972ca3788a498ff05d7004c6b764244ccc14d82a45c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D8D | 10216 bytes |
font_02_sfnt_off00012474.bind41c76ae0e0d8cb48db96750112f7a0c2e91d9718d2e8dff199fcd4691f6ef3c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12474 | 17672 bytes |
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