MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The heuristic 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' specifically indicates that some links lead to compromised CMS upload storage, increasing the likelihood of phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://crewmak.ru/uplcv?utm_term=meilleur+appli+photo+android PDF link annotation
- https://guijek.com/userfiles/file/bemikiletelinivan.pdfIn PDF document text
- http://jpind.pl/userfiles/file/wezazebuxiwifo.pdfIn PDF document text
- http://winterwonderlandzundert.nl/uploadimages/files/76245983767.pdfIn PDF document text
- https://begili.com/uploads/image/files/zimavepa.pdfIn PDF document text
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/161444abf5efbf---keselewobemer.pdfIn PDF document text
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/2add47244634bd369e160a567f82a06d/40463038607.pdfIn PDF document text
- http://educaholistica.com/resources/img/imagesck/files/50390146696.pdfIn PDF document text
- http://lightningriskassessment.com/ci/userfiles/files/ponefipipikufujolopikos.pdfIn PDF document text
- http://orderleesushi.com/uploads/files/35497149166.pdfIn PDF document text
- http://sahrugs.com/userfiles/file/80991803919.pdfIn PDF document text
- http://massiimo.com/piceditor/file/poximutejavewebonepelam.pdfIn PDF document text
- https://affze.com/userfiles/file/64867121165.pdfIn PDF document text
- https://www.seblocation.com/ckfinder/userfiles/files/68015378628.pdfIn PDF document text
- https://vnmmalta.com/userfiles/file/50770069922.pdfIn PDF document text
- https://vcvscr.cz/www/www/fckphotos/file/velizideziwip.pdfIn PDF document text
- http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/borawonoxovolesolit.pdfIn PDF document text
- http://form4concrete.ru/pics/cont/file/dopojejejulafopofofi.pdfIn PDF document text
- https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/6757a1a44fa2be23e219588bd37a0da9/54997310173.pdfIn PDF document text
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16141670ae7c4d---lusukajijuxeg.pdfIn PDF document text
- http://guowangcable.com/d/files/37260838445.pdfIn PDF document text
- http://simpelms.nl/userfiles/files/39818051369.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_off0000e259.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE259 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fa70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA70 | 10412 bytes |
SHA-256: 49d43c872b56ee5801b36036ac9c5ab493b2b3d0454e49e1bd49f7a044c116e3 |
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font_02_sfnt_off000111e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111E2 | 19288 bytes |
SHA-256: 556e5edaeae82979cda5366c56de18d01dcf731ddfcc5d17c898852840a1645b |
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