MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, suggesting a phishing or malware distribution campaign. The presence of embedded URLs and the nature of the heuristics indicate the document is designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://wastran.ru/uplcv?utm_term=vyapam+group+4+notification+pdf
- http://candientushinko.com/images/file/jilisagexape.pdf
- https://santchavarabed.in/ckfinder/userfiles/files/towafudaxigalesizukisuw.pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088193a4887d---zimabiwejenowolifa.pdf
- http://allseasonsart.com/uploads/fck_uploads/file/vilukumikat.pdf
- https://aadhaarretail.com/administrator/imagetemp/file/19088665332.pdf
- http://businesslegalgroup.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/79612520967.pdf
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/c5a8695518a229905cb1e76d990d6b1a/zolidoxodukewejiwu.pdf
- http://weifong.tw/fckimages/file/nebagepivazufutiw.pdf
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607ef4cc56549---78791372793.pdf
- http://interiorconsignments.com/media/file/luluvexafiv.pdf
- http://elitakhealing.com/ckfinder/userfiles/files/xiwevunizoz.pdf
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/fae569fb338c823011beb2ce182670bf/90329912139.pdf
- https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160881653cc552---39992084159.pdf
- http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/eeb22ff3aa41f8e2e004e6d4097781d4/64445650433.pdf
- http://emke.hu/uploads/ckfinder/userfiles/files/37074153570.pdf
- http://sieuthihatgiong.vn/webroot/img/files/3030463657.pdf
- https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/413742789f82cea393e9112be0554c4b/50800742237.pdf
- http://smartwealthhk.com/userfiles/41494248559.pdf
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608389af6d2f9---22970905295.pdf
- http://www.celso.org/download/zupolux.pdf
- https://corpus.bg/files/fck/file/59094816725.pdf
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609c5cffcfd65---foloxeneluwijeworanu.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_off0000d723.bind05182ff20325b53bbfc0c9c6696ed4020400ad264f2dfe99f3ad075bb9b764e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD723 | 18696 bytes |
font_01_sfnt_off00010734.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10734 | 16792 bytes |
font_02_sfnt_off00011f4b.bin78272966073d99c6ee51d401933989ccbf5fc13b58adfb857ca823a0306d398b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F4B | 10880 bytes |
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