MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically identified as a phishing trojan. It contains numerous links, many hosted on compromised WordPress sites or disposable domains, forming a link farm. These links likely serve as a lure to download further malicious payloads or engage in phishing, consistent with spearphishing attachment tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://chcial.ru/uplcv?utm_term=convert+two+mp3 PDF link annotation
- https://manuscripthandler.com/userfiles/file/dimenux.pdfIn PDF document text
- http://anhuifan.com/upload_fck/file/2021-5-2/20210502060436863675.pdfIn PDF document text
- https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608eaf7521187---madetobok.pdfIn PDF document text
- http://cl-pub.com/files/files/16067232215.pdfIn PDF document text
- https://senhewood.com/d/files/68324589050.pdfIn PDF document text
- http://ballstonfamilymedicine.com/clients/861402/File/44264602986.pdfIn PDF document text
- https://locktactyuma.com/ckfinder/userfiles/files/duxabubo.pdfIn PDF document text
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3cb53e8fd---808842685.pdfIn PDF document text
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1608785045a31c---bitaze.pdfIn PDF document text
- http://beiks.info/public/file/3213272696.pdfIn PDF document text
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba5d621706c---60022215947.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b6ccc95297d---56966776746.pdfIn PDF document text
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/a0b2c05536cd998f704f3cd42ab53a2f/sifakuregirudumenid.pdfIn PDF document text
- https://groupburuemas1.com/contents//files/kibafuxalabexawabemij.pdfIn PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a6e437b6e78---bimelunuvex.pdfIn PDF document text
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609919211fb80---37926729158.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160c86ab6c1310---40820039031.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c18b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC18B | 4624 bytes |
SHA-256: f977185c6fb3d6191381369efe79630f46b9fdf8b7e13c491733892824ff733e |
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font_01_sfnt_off0000d13a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD13A | 10228 bytes |
SHA-256: bc5669b3a377d92239e11b4e4c298d91c82564e59412e5fa8dfafd82ef265f85 |
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font_02_sfnt_off0000f3fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3FA | 4324 bytes |
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71 |
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