MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It functions as a link farm, with numerous embedded URLs pointing to compromised CMS uploads and disposable domains. These links likely serve as lures for phishing or to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9927
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/d064e48661d3a092948b949be9d24f58/45886205960.pdf
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b5efa5e9416---54675054168.pdf
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/4d50e128e2918b44d817080f8616f616/93601674041.pdf
- http://aliceinformaticasrl.com/user/pages/pegofurexuzujubuwumipe.pdf
- http://cs-golfclub.com/ckupload/files/50834102983.pdf
- http://pogotowienaukowe.com/Upload/file/18390470278.pdf
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/ab91be8aefd9a7cb6469b864dc7e7537/mapizejujopamad.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/723d15e580e7140d9997ec57f814fe9b/68721637529.pdf
- http://ngor2-3.com/file_media/file_image/file/18714943024.pdf
- http://www.tomasjelinek.com/img/pub/file/nizabefaneker.pdf
- https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/67820a2df21fa31461c743442d42bde4/dufivuzadu.pdf
- http://gistys.com/userfiles/file/80288923795.pdf
- https://slide-bearing.com/d/files/boledejoteruno.pdf
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/16085742b2c18c---31937748367.pdf
- http://cloverdiamond.com/file/56392772860.pdf
- https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/1608a904e6d229---27261125379.pdf
- http://pokorny-podlahy.cz/UserFiles/File/fibavik.pdf
- http://expresskaliski.info/file/gepupotobikenijigilo.pdf
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160d23e51559cb---rotozuzasoribotikejuzax.pdf
- http://anhuifan.com/upload_fck/file/2021-5-4/20210504174708657153.pdf
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077fd94bf07a---73752695219.pdf
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bf997464e6---mafotomidepazuzirorituzes.pdf
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa65ecee9d---44469674410.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=the+boy+in+the+striped+pajamas+download+full+movie
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f440.bineac157ee75509caddd7bb033a44051394d30f3b276fe2b59c7549ba766bc79b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF440 | 17628 bytes |
font_01_sfnt_off000121f6.binda63bf2c3495b31484ac0c165400d0968d16fe4a50b393193035830dc133d9bb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121F6 | 5292 bytes |
font_02_sfnt_off0001357a.bin5e990c9fcf794a6d40bbc392256e9eb1a305cf37363a7ee7cc4fc79457674411 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1357A | 11360 bytes |
font_03_sfnt_off00014fe5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14FE5 | 16792 bytes |
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