MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that point to various websites, including those hosted on compromised WordPress installations and disposable domains. The structure suggests it's designed as a link farm to lure users to potentially malicious content.
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://queure.ru/uplcv?utm_term=conducting+polymers+pdf PDF link annotation
- http://eros-arena.de/eros/userfiles/file/tabidoz.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bd97fd8528c---xebikeragurukevulekawova.pdfIn PDF document text
- https://tidurmalam.com/contents//files/33380766076.pdfIn PDF document text
- https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083a2459ae9e---tupoxeba.pdfIn PDF document text
- http://mini-garden.ru/userfiles/file/lenez.pdfIn PDF document text
- https://vitanov.rs/files/33475649631.pdfIn PDF document text
- http://musicpark-live.de/userfiles/file/sefuxen.pdfIn PDF document text
- https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16133a896c4a03---vuxuniw.pdfIn PDF document text
- https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/6gr01hi3a8umstv9ep7818f7us/kozigevokurexo.pdfIn PDF document text
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/a89bd5b8c41c24e821f8d1ce99890fae/56918427896.pdfIn PDF document text
- http://mizuho-co.net/file/ck/files/71730888204.pdfIn PDF document text
- https://srp-galabau-rostock.de/wp-content/plugins/super-forms/uploads/php/files/aa6iavtuo3038l27v0phn24psu/66072018179.pdfIn PDF document text
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abdf22aa506---40757157408.pdfIn PDF document text
- https://contabil-fiscal.ro/mm/file/95178505858.pdfIn PDF document text
- https://aakritidigitals.com/userfiles/files/rilekikixuxub.pdfIn PDF document text
- http://islaminkiel.de/webmisr/uploadwebmisr/file/panimuvelojiximisol.pdfIn PDF document text
- http://arcomproltd.com/userfiles/file/tobokazokumode.pdfIn PDF document text
- http://kd-council.com/upfile/files/89466376662.pdfIn PDF document text
- http://jualumnitoronto.com/editor/uploadfiles/xonuzuximufazokefumi.pdfIn PDF document text
- http://year-c.com/upload_fck/file/2021-7-10/20210710185230272918.pdfIn PDF document text
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ae341b486e6---jebuferunali.pdfIn PDF document text
- https://sardavetri.it/userfiles/file/veled.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_off0000c5dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5DD | 17324 bytes |
SHA-256: 48e5bb4e8f8e67a28418de92fff0fcb8443ec3608e27ed80f1a9b84b8842d207 |
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font_01_sfnt_off0000f2b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2B8 | 11044 bytes |
SHA-256: 4d1633f8edf226c4de506d5dee91449e9c9a6c8975310d790640d2d6dd423855 |
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font_02_sfnt_off00010c43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C43 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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