MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as a malicious PDF by multiple heuristics and a machine learning classifier. It functions as a link farm, containing numerous URLs that point to potentially compromised WordPress sites. These sites host further PDF files, suggesting a multi-stage attack or a distribution mechanism for malicious content. The presence of ClamAV detection further solidifies its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/2fdf990e718fe718ff02997073f9361e/61997294513.pdf
- http://aplus.to/userfiles/file/25464413518.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c98683fe0d---8600813329.pdf
- http://botosani.ro/img/uploads/file/78472046487.pdf
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609bda6bb2b00---bonivegiguxuwozat.pdf
- https://soechi.net/userfiles/file/vojovoxepikazuw.pdf
- http://hopkinshigh62.com/clients/7/77/7764523e397120ad9b09b1da26998858/File/kefosijejowiledakosa.pdf
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160715b31ec658---55461247956.pdf
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/10f47ee4118527308975cc58354a5d03/doxugutejalifakavelej.pdf
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160be5cdf7f843---68740612620.pdf
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/nb25b02dqtndkf53n2i7puqu9d/balaraziraxasofumifejit.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac83531136e---wozipu.pdf
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/cv8ne33k88ngm98fv8apkjptd5/nidogokuzewizafubu.pdf
- https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/kh8ribpjridm5r6ugg8e7hlmsg/48191926600.pdf
- http://aranykoronakft.hu/userfiles/file/resedotisutitas.pdf
- https://cottonweb.net/userfiles/file/32717678658.pdf
- http://botosani.ro/img/uploads/file/93868134420.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a091b5521b1---gixijulexufufomav.pdf
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/qcb98oh6ahe4o2kol7lof3vd1f/64520897334.pdf
- http://autodilykanka.cz/cmsimple/images/file/81807530566.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=parabola+word+problems+with+solutions
- 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_off0000e58f.bin231c96fd19e7462aae46163faceeba2dccf155fe56ffb5324985c4dbb2f37636 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE58F | 17364 bytes |
font_01_sfnt_off000112a3.bin389226c98eae83aed57ddfde141963ec0dd04a394ba021faf54bbda56d5cfedf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112A3 | 10984 bytes |
font_02_sfnt_off00012bc8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BC8 | 16792 bytes |
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