MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable hosting, suggesting a link farm or phishing lure. The presence of embedded URLs and the PDF structure itself points towards an attempt to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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 http://dxqzx.com/ckfinder/userfiles/files/20210728_090843.pdf In PDF document text
- http://dsagco.com/Upload/file/rugojojesugefiwasezes.pdfIn PDF document text
- http://axi-hohenstein.de/userfiles/file/zogusanakumakakewosowe.pdfIn PDF document text
- http://arlingtonhigh1959.com/clients/863184/File/37961421760.pdfIn PDF document text
- http://wsm.hk/images/uploadfiles/file/24973641792.pdfIn PDF document text
- https://brahmagnanam.org/fck_uploads/file/53153395753.pdfIn PDF document text
- https://dadrarad.ro/userfiles/file/89143521603.pdfIn PDF document text
- http://rowanfamilyreunion.com/clients/28915/File/tekidotuxagewikalu.pdfIn PDF document text
- https://cape-electronics.com/media/file/nomewuzoposeba.pdfIn PDF document text
- http://interstyle.org/content/xuploadimages/file/86214632740.pdfIn PDF document text
- https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/b16096aa192481d875f2b7db4c2d52f5/21189993784.pdfIn PDF document text
- https://dolnoslaskialarmsmogowy.pl/imgturysta/files/9225453493.pdfIn PDF document text
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16092cc35364cd---5828096033.pdfIn PDF document text
- http://goteneplast.se/files/images/file/nularuforebejufipuvib.pdfIn PDF document text
- https://motty-etai-sharon.com/files/files/53874420962.pdfIn PDF document text
- https://sanruouvang.net/images/uploaded/file/porub.pdfIn PDF document text
- http://stonestudio.pl/files/upload/file/26189631069.pdfIn PDF document text
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/fvc5qk512qnhov2bnvdkg1igcl/sexixiduguwijurex.pdfIn PDF document text
- http://xmzhj.com/UserFiles/file/33364617968.pdfIn PDF document text
- http://4bx.pl/public/file/zukewowajudabut.pdfIn PDF document text
- http://nowator-zpu.pl/userfiles/file/sijugexo.pdfIn PDF document text
- https://unosms.us/userfiles/file/sutesititiralileveduli.pdfIn PDF document text
- http://ya-ke.cn/admin/upload/7756815160.pdfIn PDF document text
- http://yuha.be/_files/file/pumobutakobivoku.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=maler+und+lackierer+tarifvertrag+pdfPDF 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_off0000dbb7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBB7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f3c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3C9 | 19292 bytes |
SHA-256: 68dedd3200261400e85dc8161e4820fc7811ba98758907a979dcce1b5de2c61f |
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font_02_sfnt_off000124e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124E1 | 10760 bytes |
SHA-256: 6cd35ad28c7e5b431220921c42827a4cf1acc6c4e8b59f30e0d55ef586ccb933 |
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