MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ML classifiers and ClamAV, and exhibits characteristics of an advance-fee scam. It contains numerous links to external PDF files hosted on compromised WordPress sites, suggesting a link farm designed to distribute malicious content or redirect users to phishing pages. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly indicates a fraudulent scheme involving prizes or parcels.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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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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Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LUREDocument contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
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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://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/54ca14164513ac6a619a796be77a04a2/79426645148.pdf
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e413ce978f---42762939912.pdf
- http://doubletroubels.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079e0a0e85a9---83537339538.pdf
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/70e10f6bd9caa2b30188a8f7f5f6ed38/8948163265.pdf
- https://www.hamburgeriaagricola.com/wp-content/plugins/super-forms/uploads/php/files/94g58etecg9qlh3k1er84oj8hu/56574135814.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/b64bcf01f5be25d2647a6b9777e565df/8285651992.pdf
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/3oedljqjj16q25mbr63p94e2gv/xudabotumom.pdf
- http://amandatravel.com/userfiles/file/ramopun.pdf
- https://euroroma-bg.org/files/file/67600044612.pdf
- http://thaihotelsale.com/FileData/ckfinder/files/20210626_4CCE8F268681E6CF.pdf
- http://horlickhigh61.com/clients/a/ab/ab3fb267cc30d45b98f460a20cee0b8d/File/64847555694.pdf
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/4snd5vpvusithsvv2cc8gto0g4/24776575005.pdf
- http://primaneighbors.com/userimages/raluxikaxagofidonijawifo.pdf
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f4304dff19---26938927570.pdf
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bc029309652---27275376927.pdf
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/b7e509dd1e59f68e7de06a0c319f754a/xijudakupegelipemade.pdf
- https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/3a69f67c902437520c7defbc201ff7d3/rujovosefidobozogotorel.pdf
- https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/9d24fcf75e67bccf898e6d49eed1e155/23024212853.pdf
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/6e1ad288b27bcef29602f58e97922924/kajubosus.pdf
- https://capitaleny.com/wp-content/plugins/super-forms/uploads/php/files/524db0cfaaf6beb83c2e148e4a66f4ca/wejedodabapilabagidudu.pdf
- https://sofupingame.com/calisma2/files/uploads/jomaseligesizujikasipa.pdf
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160c3d6514095c---xinuwevukat.pdf
- https://securityguardsupply.org/php/uploads/file/tufadubojumawatitazep.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=real+estate+house+and+land
- 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_off000118a0.bindb250aac50563d67310cc76ebc383f14f8cf2b2783b37edb0821647f6c70c73e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118A0 | 10296 bytes |
font_01_sfnt_off00012fcd.bind175a4d2ee05b0f9a108e13875a204f61c1e0965ac549b64d5fe26d167b7a865 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FCD | 17152 bytes |
font_02_sfnt_off00015cad.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15CAD | 16792 bytes |
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