MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous links to external websites, many of which appear to be compromised WordPress installations or disposable hosting, suggesting a link farm or phishing lure. The presence of embedded URLs and the 'SE_INVOICE_LURE' heuristic indicate the document's intent is to trick the user into clicking malicious links, likely for credential harvesting or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://archism.ru/uplcv?utm_term=stomach+ache+after+ovulation
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/5tmpfv8vnjj4uqk2der7f3pjf2/furiwimapodo.pdf
- http://vmkmsz.hu/userfiles/file/wanimusexazulalojasema.pdf
- http://altelaw.com/uploads/image/file/zimezerabejan.pdf
- http://sungsam.net/userData/board/file/75988719048.pdf
- http://sunrui-ti.com/d/files/gubuwen.pdf
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8ce849a6dd---84873426750.pdf
- https://pensionatiitalianiinportogallo.it/wp-content/plugins/super-forms/uploads/php/files/7427b04930db972703c113c30fc94563/1817614931.pdf
- https://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/990bdb945ea20576c3b43f3d6a7c668c/kibegigijul.pdf
- http://www.findvoters.com/userfiles/file/perukib.pdf
- http://2478.ru/admin/ckfinder/userfiles/files/65919395575.pdf
- http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607629f73abef---rutedipuzudire.pdf
- http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160906e941d63b---6408095517.pdf
- https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/3b1016eb0adf1f847d26f37300007001/76461225132.pdf
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160cf61d8d9816---51884520651.pdf
- https://tort-art.ru/userfiles/file/99433319304.pdf
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/cba610148ddd68b2f2a23f1c253f1eb3/40152725731.pdf
- https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/99e7ebad9fdfa2138f32fd8409d019d0/63426617271.pdf
- https://roweryelectra.pl/app/webroot/uploads/file/16217971564194.pdf
- http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2fe1c36767---41990406519.pdf
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d01d0041a82---regedasewusative.pdf
- http://maristaslardero.es/userfiles/file/zepijafamoza.pdf
- https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/ccafe6cea35ba30f9b3969df5f070081/pudifogexelat.pdf
- http://balone.net/_upload/file///863992859.pdf
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b0c9c86fe29---wasaj.pdf
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607d2eb014ab6---63447982236.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_off0000f82a.bine1c74ed4f7ec2078309d77a1d077c70a7294aa0f2e3cd04e657dbb1beddba9e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF82A | 17504 bytes |
font_01_sfnt_off0001257b.binbbb7d35bddba586e31294efd94e60f65c6aa9b0f1d32813be0616bf788573711 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1257B | 10672 bytes |
font_02_sfnt_off00013dc8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DC8 | 16792 bytes |
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