MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://medvor.ru/uplcv?utm_term=division+with+remainders+worksheet+word+problems PDF link annotation
- http://gayaarchi.com/userfiles/file/20210624024944.pdfIn PDF document text
- http://currycornersugarland.com/admin/images/file/lupejawesumelemo.pdfIn PDF document text
- https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160832bf9ac06f---40290542061.pdfIn PDF document text
- http://alexandersorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/64617594584.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/5giv13dto29s08mpoj0plp8uf1/98687255938.pdfIn PDF document text
- http://autoset66.ru/admin/ckfinder/userfiles/files/gepakananenuf.pdfIn PDF document text
- http://szyldkj.com/luodan/images/userfiles/file/43089589678.pdfIn PDF document text
- http://cc-loges.com/uploads/file/69120687579.pdfIn PDF document text
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/5d74a79fdffccecf4ac655125a5973f0/lijowumisiwafimi.pdfIn PDF document text
- http://psychoterapia-przemysl.net/img/userfiles/file/tazavevizajetar.pdfIn PDF document text
- http://scheidenschiedam.nl/uploads//file/31835054533.pdfIn PDF document text
- http://aptchasers.com/FCKeditor/userfiles/file/84042286092.pdfIn PDF document text
- https://pjkconstruction.ca/images/file/sivugow.pdfIn PDF document text
- https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/bebd3f6484a8c5a1ffab2f36d7a4a859/badinurigebikuwiximuvifa.pdfIn PDF document text
- https://ssvacancy.com/ckfinder/userfiles/files/36355145573.pdfIn PDF document text
- http://wellgroup.cz/UserFiles/File/vusoviwezor.pdfIn PDF document text
- http://mqskin.com/luutru/files/50163197854.pdfIn PDF document text
- http://saigondome.com/uploads/userfiles/file/mobemi.pdfIn PDF document text
- https://sharenkon.com/files/josixebiro.pdfIn PDF document text
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/c8eca5bb2a595740f6ed618383360658/garadunapize.pdfIn PDF document text
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e668988032---21893465192.pdfIn PDF document text
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/13db202f1e72e35817809a0eb20fd13d/32522493689.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_off0000e7bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7BB | 17476 bytes |
SHA-256: f6219744b59298c03291b685e36c8d59135a8e17b18faf836e36e3e8ce1176c4 |
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font_01_sfnt_off00011580.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11580 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012d97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D97 | 11044 bytes |
SHA-256: 48ca13b7395f06ce841efa29e9d0beddce529639312a8601281988a1310b1c5f |
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