MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to various PDF files hosted on potentially compromised or disposable domains. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the document's purpose is to trick users into believing they need a password to access an archive, a common tactic to bypass security filters for malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://queure.ru/uplcv?utm_term=tarasti+hai+nigahen+song
- http://sdds.be/userfiles/file/pegijuxulubas.pdf
- http://4rrecycle.com/files/file/67515220402.pdf
- https://xn--fct8ml6mwue.tw/uploads/files/24561503993.pdf
- https://topinsolventa.ro/userfiles/file/67108921535.pdf
- http://studiophotosfashion.it/userfiles/files/ratatetiwanobibu.pdf
- https://producedepot.us/userfiles/files/zofovavu.pdf
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fc0ca4727c---risijaleviworigatamivowu.pdf
- http://yuli-china.ru/d/files/ginosakotedofopene.pdf
- http://hsaltsj.com/uploads/files/pusutobexo.pdf
- http://driscollandgibson.com/images/edit_images/file/22009298436.pdf
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161374be52ae66---motapaguxadomakukuwufo.pdf
- https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/16134f1db28c8c---pixakuzekatupi.pdf
- https://mcq.bmtinhoc.vn/InteriorWeb/images/images_news/files/86818767436.pdf
- http://uniquecharacters.com/upload/files/lopamuverozox.pdf
- http://braciszewska-klimek.pl/fck_files/file/potoz.pdf
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/bc1144d5e0d2cb70bfe837f18389371d/vewetu.pdf
- https://legyenegyjonapod.hu/userfiles/files/rakarira.pdf
- http://galluccifaibano.it/userfiles/file/56042545496.pdf
- http://ahcxdq.com/uploads/file/081253559684.pdf
- http://zxpgw.com/userfiles/file/jumelogeravi.pdf
- http://4bx.pl/public/file/jipurodisazotasa.pdf
- https://sanghvicranes.com/staging/media/74220758581.pdf
- http://sola-brothers.com/userfiles/file/27970489179.pdf
- http://hnsunnyfood.com/d/files/61811581712.pdf
- http://geotersrl.it/file/31149508259.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c820.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC820 | 16792 bytes |
font_01_sfnt_off0000e037.binbd9e94191983b36c77f0022f45fd40d3a34d725a2cb2e06da2113a0a6e6eebd2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE037 | 10304 bytes |
font_02_sfnt_off0000f764.binde30234966130b72a429a941b67afb7c34868962ca742179da49bb5ac1aa9a2d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF764 | 21328 bytes |
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