MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, forming a link farm. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggests these links are intended to lure users, likely for phishing or to download further malware. No scripts were extracted, but the structure and URL patterns are indicative of a malicious document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://marblobaths.com/app/webroot/img/files/15161969511.pdf In PDF document text
- http://janatalnajaf.com/basefile/janatalnajafcom/files/wejolilakururile.pdfIn PDF document text
- http://aven.su/userfiles/file/95140337686.pdfIn PDF document text
- https://sitpchemcieszyn.pl/_sitpchem/file/77828308751.pdfIn PDF document text
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/1eb065612bf70eabdd600a39c096e177/ledibuvogixefagexobakas.pdfIn PDF document text
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/7baf2351f3207559ffd5433b55bf16a8/69058198546.pdfIn PDF document text
- http://eventclub.pl/userfiles/file/lamexosure.pdfIn PDF document text
- http://888chji.com/userfiles/files/80029737162.pdfIn PDF document text
- http://szymonadamczyk.pl/uploads/fck/file/felisunor.pdfIn PDF document text
- http://attlas.center/userfiles/file/942933092.pdfIn PDF document text
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161276a939bdcf---15650587032.pdfIn PDF document text
- http://cuacongtudongbinhduong.com/upload/files/nigafepinujefo.pdfIn PDF document text
- http://photopuzzle.net/userData/board/file/vuwagakizivabesaxodusa.pdfIn PDF document text
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160845616cf830---19385109151.pdfIn PDF document text
- https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/a0316841a76eb19616b3ae4054e588b7/77175052922.pdfIn PDF document text
- http://twtipa.com/upfile/files/2021/07/04/wupajojezu.pdfIn PDF document text
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160c26d7910b23---vudiwulimiw.pdfIn PDF document text
- http://benthanhsgfarm.com/images/uploads/files/71288351694.pdfIn PDF document text
- https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/160f167d07bf26---dukizasugemeg.pdfIn PDF document text
- https://estoniapools.com/contents//files/tuvedelupafanipibasino.pdfIn PDF document text
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161102826bfa8c---jodekuvili.pdfIn PDF document text
- http://hoteldarim.ir/basefile/hoteldarimir/files/77179281927.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=download+video+star+app+for+androidPDF 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_off0000bacb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBACB | 16940 bytes |
SHA-256: cd7989bf098fd3a76302d5de99e400cb27252bb97a09047aac1112ed68669501 |
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font_01_sfnt_off0000e5e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5E8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fdff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDFF | 10644 bytes |
SHA-256: 34b78d1e736d1edd9dd2cb8cded7169d4b094a7d93cccbaa07f50593dceb54f4 |
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