MALICIOUS
216
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1539 Steal or Forge Credentials
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The 'SE_MFA_LURE' heuristic strongly suggests the document is designed for credential harvesting, specifically targeting multi-factor authentication or one-time codes. Numerous URLs pointing to compromised WordPress sites and disposable hosting further support its role as a phishing lure, likely leading to credential theft.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 8
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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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://smidgel.ru/uplcv?utm_term=adding+%26+subtracting+negative+fractions
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160834162a5376---doxivuwufuvolusexo.pdf
- https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/9099fc522b6ec621fa1039657b162edc/zilir.pdf
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d7742bd4bab---denerekajodilosorufilobap.pdf
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a136f3acd63---3575023028.pdf
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba35644d5ce---vaminiranofoba.pdf
- https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/f66adf2db6583b635a0ad11c1a92da07/newofakuzejuxoni.pdf
- http://157.230.241.115/image/upload/File/16528301024.pdf
- https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/7bb9ef6be7516fad92524fc3cbbc4711/zininojulavekabofi.pdf
- http://askort.pl/Upload/file/kipusitexikaf.pdf
- http://orgue-chantepie.info/FCKeditor/upload/file/nixani.pdf
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/cb099621c3d8e86442d37f9494438ec4/mobubupozutezipejiwi.pdf
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/stjaqpfk141sk94nanrv5ojp50/54405152816.pdf
- http://lasfyy.com/uploadfile/file/20210603220334035.pdf
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/160a33fd4ee5bf---30406650775.pdf
- http://xn--80aaa1acmiejxr6d7fg.xn--p1ai/data/files/fuxamakos.pdf
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/09cca736b210875cebba0390cbcff4d5/zibidexevibijaporemeweve.pdf
- http://iphysiology.ru/upload/sukexazivoneruluwire.pdf
- http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1606ff7c29efd9---8529589831.pdf
- https://gwynharmon.com/home/gwyn/public_html/ckfinder/userfiles/files/40473958930.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a88f314858e.pdf
- https://www.ppmcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/mn5cpecmvrgvq4segdt9tbuk4m/79055877844.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/5fb4be67f13bfe0be16d9c494daab260/38648694905.pdf
- https://aljazeerahpetroleum.ae/userfiles/files/siguvobomimuna.pdf
- http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d9f61a313d---pepawinasopibimumir.pdf
- http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160761699876d9---61061895819.pdf
- http://jingluo.net/uploadfiles/files/5807209489.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_off000105ae.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105AE | 16792 bytes |
font_01_sfnt_off00011dc0.bin01c7e153fca436b45a585acc6a35efe1c09019938113ef0a58763d0ff26fab51 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DC0 | 16524 bytes |
font_02_sfnt_off00014893.bin6a87a76eae0e94adc90861a170471c08b137e55da0cd40f728d3915e6ec15b35 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14893 | 9572 bytes |
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