MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The heuristics indicate it functions as a link farm, directing users to various URLs, some of which are hosted on potentially compromised CMS uploads. The presence of multiple PDF files linked from these sites suggests a campaign to distribute further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://rheinfurth.de/userfiles/file/78716896302.pdf In PDF document text
- http://terrietanaka.com/library/files/norubasunamidinizid.pdfIn PDF document text
- https://wolfgang-photography.com/userfiles/files/rexezimusejedawolerise.pdfIn PDF document text
- http://gintaras.cz/userfiles/file/bulezari.pdfIn PDF document text
- https://amgaa.org/temp/files/venewinapumerejukuv.pdfIn PDF document text
- http://twfindia.in/userfiles/files/rufol.pdfIn PDF document text
- http://castudio.eu/userfiles/files/mugilig.pdfIn PDF document text
- http://kehlux.lu/userfiles/files/kesokubekapojupapinipu.pdfIn PDF document text
- http://wsm.hk/images/files/21005537391.pdfIn PDF document text
- https://www.parquesanalbertohurtado.cl/ckfinder/userfiles/files/20388207187.pdfIn PDF document text
- http://skybuildinfraprojects.com/uploads/3954691966.pdfIn PDF document text
- http://mdfgiare.com/upload/files/tefiwojetofilimowejujop.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/3dr59j7hprkgn9qgfp82234dij/97911167093.pdfIn PDF document text
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/16138f2c112efb---99686126707.pdfIn PDF document text
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fff88dbd8f---71871608696.pdfIn PDF document text
- https://psfund.org/public/uploads/files/cms_files/bavabalutolu.pdfIn PDF document text
- https://bawaniint.com/ckfinder/userfiles/files/6751003560.pdfIn PDF document text
- http://filippodelvita.com/demo/userfiles/file/45808042299.pdfIn PDF document text
- http://kcemsp.org/upload/editor/file/60921147082.pdfIn PDF document text
- http://joyandwowbook.com/upload/file/31189741358.pdfIn PDF document text
- https://dacola.com/upload/files/65269192175.pdfIn PDF document text
- http://phutungtdc.com/upload/files/77139471870.pdfIn PDF document text
- https://akgoz.zemta.com/uploads/files/bugifagejekujetuxelelu.pdfIn PDF document text
- http://quaint-house.com/images/blog/file/witapavuvosekenage.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=download+sdk+platform+toolsPDF link annotation
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000be37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE37 | 10616 bytes |
SHA-256: fda293a1688b55035acb6145709e92bc9eb78b7dab57458c49e7183da1ff741f |
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font_01_sfnt_off0000d689.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD689 | 16448 bytes |
SHA-256: 15469ef53faf4c2ca37f0348edf651eb68bbb3ea4b4a061c7945b26a55e28863 |
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font_02_sfnt_off000100af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100AF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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