MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous external links, many pointing to compromised CMS upload directories, suggesting it's part of a link farm designed to redirect users to malicious sites. The file's structure and the presence of multiple external URIs indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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=marketing+research+papers+pdf
- http://www.awakohchang.com/image/upload/File/6819612716.pdf
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/6c780f366838394f6b116e48b0d81bda/genexegutenezulasivadokon.pdf
- http://farmaciafici.com/userfiles/files/90821907353.pdf
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/spolp6fn3v8ntois91nfbefo50/49155672913.pdf
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad8816ca5bb---88973148396.pdf
- https://serwisnawigacji.pl/userfiles/file/2368998312.pdf
- https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/o328toa0qhdib3ldbg559qq218/52938942162.pdf
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a59c9e700b---torabofomemezudef.pdf
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/1uopkoe1l8dkjnlpfjn1ko28i0/56896378205.pdf
- https://travelsafeway.com/userfiles/file/pobewinatumovoxiwuv.pdf
- http://thedewakohchang.com/image/upload/File/uwid.pdf
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/tv97ift86b9sdji7jffhgq31u2/senazukajifijasosudiw.pdf
- https://inifd.london/uploads/file/tumoliwitesoteko.pdf
- https://aihr-iadh.org/uploads/FCK_files/file/sakexaweli.pdf
- http://www.mearesandassociatesllc.com/siteuploads/editorimg/file/97517052903.pdf
- http://galeriejacqueselbaz.com/userfiles/file/mafafanowamumamumetaz.pdf
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608faab641f0e---nagarakevakalabebofapu.pdf
- http://cuacuondaiphuc.com/upload/files/37193564446.pdf
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b46ecb74e31---97058754698.pdf
- http://manavpublicschool.org/manav/userfiles/file/migemibemo.pdf
- http://asremajazi.com/uploads/files/vogixemasefitekusigop.pdf
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607b80e67ba13---26794408848.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_off0000f6f0.bin50092aa04bf88e8380a4e10747a99517d49ca4aeb1ccdedb4161503c1e19a1e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6F0 | 10816 bytes |
font_01_sfnt_off00010fa0.bin84eb256ebd45cea79d991399f42a601678b1b5b35a54cea97b3ef8d4ab4bb231 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FA0 | 17036 bytes |
font_02_sfnt_off00013bcf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BCF | 16792 bytes |
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