MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
The PDF document contains multiple links to compromised WordPress sites and other disposable hosting, suggesting a link farm designed to distribute malicious content. The 'SE_BROWSER_INSTALL_LURE' heuristic indicates the document's primary purpose is to trick the user into installing a browser extension or update, a common social-engineering tactic. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classifier's high confidence score point towards a malicious intent, likely to facilitate further compromise or credential theft.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 6
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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://www.saammohaseb.ir/wp-content/plugins/super-forms/uploads/php/files/1519052fd5b5ee558ced52e1c2092c0f/95192679425.pdf In PDF document text
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160acb35adee04---47445302612.pdfIn PDF document text
- http://aklond.com/UploadFilesfile/%5C/2021052321595154.pdfIn PDF document text
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/huiahf2it18va7ij04unptcbcr/witifipidugufufaka.pdfIn PDF document text
- http://asokmontridental.com/userfiles/file/95374796063.pdfIn PDF document text
- http://sl1971.com/clients/5/51/517263f0417f9379c67e6eba0e0bdfe8/File/82136640973.pdfIn PDF document text
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/27d09cc0e4b48f2672dec65408945bee/70749613864.pdfIn PDF document text
- https://www.analfissur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d879f3377f---26265390042.pdfIn PDF document text
- http://ttc-investco.com/img/files/15183533509.pdfIn PDF document text
- http://www.deep2001.com/images/library/File/78240209175.pdfIn PDF document text
- http://safeabortionnepal.com/userfiles/file/zesosuxosegapof.pdfIn PDF document text
- https://reflexlighting.com/wp-content/plugins/super-forms/uploads/php/files/6f4128ee44549bf418163850995f6066/67270735851.pdfIn PDF document text
- https://groupburuemas1.com/contents//files/gexiniwoguforimulen.pdfIn PDF document text
- http://wxeina.com/userfiles/files/lanepixas.pdfIn PDF document text
- http://baugeraeteverleih.de/benutzerdateien/rukadosanomeg.pdfIn PDF document text
- https://cecprint.com/images/file/nukam.pdfIn PDF document text
- http://reicar.dk/userfiles/file/39768417428.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=best+pdf+reader+on+linuxPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000efcc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFCC | 5152 bytes |
SHA-256: f7b73f10ebc89820bd12830d8a1a092a5153856236e07bd9f454cb0d77ee801d |
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font_01_sfnt_off0001016a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1016A | 11588 bytes |
SHA-256: 83bc177a39468696ed373fd65170a9c64a1de261dcc196a2ea4c1b8859e24181 |
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