MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a link farm with numerous URLs, many hosted on compromised WordPress sites, suggesting an attempt to redirect users to malicious content. The presence of external URIs and link farm characteristics indicates a phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://queure.ru/uplcv?utm_term=retroduction+critical+realism
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b77546579bc---73315049279.pdf
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a5a9fe41338---10049601605.pdf
- http://wmc21.com/ckupload/files/xagodudilemozijolitenizuw.pdf
- http://kaitosushisb.com/uploads/files/5154953307.pdf
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/e87a6ad071fd5298a6999a4cea398a30/tapunolowuxoromatotok.pdf
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/gmilmopv2cm9nn6840pt1eh6h4/94492614544.pdf
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160a1f20228da6---lusuvizotanizafapoxoxa.pdf
- http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/1607db3ec7053b---jigujojazojufages.pdf
- http://opakowania-loga.pl/zdjecia/fotki/file/39198696321.pdf
- http://kemenyseprosiklos.hu/upload/file/41699833632.pdf
- http://digitalpolicycouncil.com/imagenes/file/1874611812.pdf
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c6195b6af70---tideb.pdf
- https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/81d5dfb810e7faa08b10604d3c540cbe/mixivekuzati.pdf
- https://bkht.vn/userfiles/file/levufawop.pdf
- https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/3ee12d9553013d0c014b144200125072/dopokopokujulesezisufuved.pdf
- http://fatamorgana.fr/uploads/assets/file/rijalinofiduj.pdf
- http://toeicspeaking.net/_UploadFile/Images/file/sajamorumigugupibepomar.pdf
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/foxavuzijituzuripogakiva.pdf
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/c4ec80c5900aa904d25fe7dd73e02352/nunumonib.pdf
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160732ba8c51ec---47991476014.pdf
- http://pneusmarene.it/images/file/13999279790.pdf
- https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/bfju99fvrpu5ob29363dj72k1b/1510029313.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_off0000d217.bin8546068b41cf44ba09bd52920ecb37898fde769cd739d8cf45e359d6bcd85fcf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD217 | 16964 bytes |
font_01_sfnt_off0000fe28.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE28 | 16792 bytes |
font_02_sfnt_off0001163f.bin6fccb7b7c4eeb691b392ed6cf933f54c5d6e46053fe3dbdcecc9b3e4fab0267b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1163F | 10676 bytes |
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