MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous embedded URIs that point to compromised WordPress sites and disposable hosting, likely serving as a distribution point for phishing or malware. The presence of external URIs and the nature of the links suggest an attempt to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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=aseptic+necrosis+treatment
- http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16094d13d833b8---notiz.pdf
- https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/526c4de45d5b32daf730d0be40f5aa8b/ruvikeduj.pdf
- https://thefertilizerequipment.com/d/files/ziwekuxefirovisupevo.pdf
- https://www.oneirishrover.com/wp-content/plugins/super-forms/uploads/php/files/5140ea4ff504d0b6861b6f0c03d3b200/zafizuvidanujowoga.pdf
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9f5ad743b---genusi.pdf
- http://singer-island-condos.com/userfiles/files/jizifaxotubasabi.pdf
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071ca8648132---50176876502.pdf
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1607e5efe5c4ba---60051387897.pdf
- https://ph2020.org/FCKeditor/file/visavaseririfekozebunaw.pdf
- https://bbpartner.cz/userfiles/file/32126361762.pdf
- http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/a5a64313e29d86137e9724617cc1c501/80293953237.pdf
- http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b47a0561cab---1630455678.pdf
- http://yuha.be/_files/file/wariposa.pdf
- http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1607ad28347821---65952130313.pdf
- https://atcotourismtravel.com/userfiles/file/4327747729.pdf
- http://sylvianapoles.com/clients/e/e6/e63d90d46a840f0b3195f531cec11f6e/File/jowodo.pdf
- http://zabradli-znerezu.cz/userfiles/file/ximazipamuromakakix.pdf
- https://pharma-tools.eu/galeria/file/kunupumidalola.pdf
- https://hyundainhapkhau.vn/upload/files/bulurewep.pdf
- https://kheops-so.fr/ckfinder/userfiles/files/bofuruzukewavunazadomasix.pdf
- http://puzynowska-kancelaria.com/userfiles/file/wijiso.pdf
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/0f9e0c0b658b6e7322afcabc83950860/jogonumonosatos.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_off0000ee7b.bin263615856a3f8da0c69fcd7d4668183df2e1d8bb0f708aee5e0f48d5a5d75105 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE7B | 18036 bytes |
font_01_sfnt_off00011bef.bin309c43f3469289fe05a71d117af7858562e83e1a6a3e9405b0500940571e0f9a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BEF | 10472 bytes |
font_02_sfnt_off000133bd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133BD | 16792 bytes |
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