MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of external links, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed for malicious redirection. ClamAV detected this file as 'Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0', and the ML classifier also flagged it as malicious. The presence of numerous URLs suggests an attempt to lure users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://kingtonkatsu.com/uploads/files/zarisegufepegewagefinuje.pdf
- https://mmagame.com/userfiles/file/vazana.pdf
- http://softwarefactory.nl/images/file/butavopasefija.pdf
- https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f180731dfa---jujixenuzixivudena.pdf
- https://alihuata.com/userfiles/file/xovegolufobewigakijatola.pdf
- http://esthebel.de/userfiles/file/wirufumepamagimujiti.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f69c0ee17b---xogoteduberepeluvixenoxiz.pdf
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/e6g2mpndj4o7085mr7vaoo00ts/67630703772.pdf
- http://freeski.hu/freeski/file/73203192753.pdf
- https://www.eziblank.com/wp-content/plugins/super-forms/uploads/php/files/vmuqofhlrq25hu0vir7scvjdh0/zubazinazafujujonuzusu.pdf
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160732da25c53b---96920492755.pdf
- https://efnnma.org/files/file/6603856024.pdf
- https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607e65dbb928b---23936554324.pdf
- http://diagnosticaedilizia.com/userfiles/files/molobenetagilakof.pdf
- https://area34.info/wp-content/plugins/super-forms/uploads/php/files/ra5sn7tp8fsbpttfuvr5psbv94/mimixabosed.pdf
- http://valeneighbors.com/userimages/85024477368.pdf
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e60e584d2a---pujajariloxitodojuga.pdf
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/1a362e4578017236a29a504af5255eb2/jemaxag.pdf
- http://ainut.fi/userfiles/file/7754039565.pdf
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/26603a153cc739f47fabae0a59c2376b/256345568.pdf
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c3d0891c51---zufeko.pdf
- http://indel.sk/userfiles/file/93694459847.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=native+american+sites+in+kentucky
- 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_off0001138c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1138C | 16792 bytes |
font_01_sfnt_off00012ba3.bin7ae2f6facacedd62d711faca260da5f78465d8f58f0ab8b332221e94b74cc5a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BA3 | 10576 bytes |
font_02_sfnt_off000143ce.binfd7b6b5133c37e79676d310d3585e9e92e8f867e5e5279e4762ee10c4f2f61b9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x143CE | 16948 bytes |
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