MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by multiple heuristics and an ML classifier, with ClamAV detecting it as a phishing trojan. It contains numerous embedded URLs pointing to external sites, many hosted on compromised WordPress installations or disposable domains, suggesting a link farm or phishing lure. The presence of PDF-specific heuristics like PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM indicates the document's primary function is to redirect users to these malicious external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://smidgel.ru/uplcv?utm_term=interruptor+diferencial+residual+pdf PDF link annotation
- https://mygo.com/ckfinder/userfiles/files/47452809363.pdfIn PDF document text
- http://quiltingacademy.info/fckeditor/userfiles/file/lafaxinajapilaguputokawik.pdfIn PDF document text
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/7f93b4b3f46a1e720589578f2645c143/21021559829.pdfIn PDF document text
- https://wodepcb.cn/uploadfiles/files/39192891787.pdfIn PDF document text
- http://kripasec.com/userfiles/file/35096647181.pdfIn PDF document text
- https://electrabicycles.pl/app/webroot/uploads/file/16247207921066.pdfIn PDF document text
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1aeea119e2---bagukupofufubeb.pdfIn PDF document text
- http://emaaravm.net/upload/files/komebatufudafojajuvodo.pdfIn PDF document text
- https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/sp0cuot9jlgnag1l51g3ot8ouk/paronubifosawuminomi.pdfIn PDF document text
- https://mimpidia.com/contents//files/bemamojebenukevizaxo.pdfIn PDF document text
- http://redeyeldn.com/userfiles/file/67273353527.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b2bb3939a28---73613882245.pdfIn PDF document text
- https://takarasushimn.com/userfiles/files/faredorebibulikawix.pdfIn PDF document text
- http://midiabyz.com/wp-content/plugins/super-forms/uploads/php/files/cb59e084269363b98bcd3f765f678080/beresijulobarewarugewok.pdfIn PDF document text
- http://mywayrtk.info/userfiles/file/13130891442.pdfIn PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1608564ce9ec54---ronowefurak.pdfIn PDF document text
- https://allianztc.ro/files/file/besiruvalax.pdfIn PDF document text
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/267f76825391ee3998d4cded0f8d03ff/84927493309.pdfIn PDF document text
- https://ms02bet.net/contents//files/94890238578.pdfIn PDF document text
- http://bogelaipigeon.com/upload/file/larojatelitetiragimed.pdfIn PDF document text
- https://acrgroup.nl/userfiles/file/vunadetolugotep.pdfIn PDF document text
- http://igabana.com/upfolder/e/files/20210606110327.pdfIn PDF document text
- https://alice-immo.com/userfiles/file/35259550483.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608a97991a985---megagumonujaxogeje.pdfIn PDF document text
- http://ncfc.com.tr/ckfinder/userfiles/files/zazobaxej.pdfIn 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://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_off0000c01e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC01E | 10664 bytes |
SHA-256: d9d6dc4e09460bceebb856af3496cb5a92b5037260f0de318d0f70c9bfb614e7 |
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font_01_sfnt_off0000d8a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8A2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f0b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0B4 | 16828 bytes |
SHA-256: 805cd6b399a925804767ec03f002ca4acc0d6a27eb54c7d8b3e7e903290cb574 |
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