MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting. Heuristics indicate a 'link farm' pattern, suggesting the document's primary purpose is to redirect users to external malicious sites. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports a phishing or malicious redirection attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://pistant.ru/uplcv?utm_term=data+structures+and+algorithms+adam+drozdek+pdf PDF link annotation
- https://dildendilecevirievi.com/upload/ckfinder/files/19708700446.pdfIn PDF document text
- https://willmarareachamber.com/ckfinder/userfiles/files/66367577348.pdfIn PDF document text
- http://duancanhotot.com/upload/files/purexurejogerosibonoziz.pdfIn PDF document text
- http://www.injamal.es/nueva/ckfinder/userfiles/files/zajiw.pdfIn PDF document text
- http://staresecurity.com/userfiles/file/dorukebuzukulotamufodux.pdfIn PDF document text
- http://ecoaga.com/documentos/file/77792018316.pdfIn PDF document text
- https://vcvscr.cz/www/www/fckphotos/file/21946684127.pdfIn PDF document text
- http://starma.pl/files/file/lotenel.pdfIn PDF document text
- http://zimmerei-possert.at/28624186232.pdfIn PDF document text
- http://tauben-buchmeier.de/kleinberliner-schuetzen/userfiles/files/58271290987.pdfIn PDF document text
- http://influences-vegetales.eu/assets/Image/files/94678874823.pdfIn PDF document text
- http://klimagra.pl/images/wysiwyg_img/file/41498866067.pdfIn PDF document text
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16138639863faf---xotelexiwagurukapobuvap.pdfIn PDF document text
- http://hacoauto.vn/upload/files/jebofajuj.pdfIn PDF document text
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16134bd34ab536---68526924379.pdfIn PDF document text
- https://www.thaiahpa.com/flash/files/14604095033.pdfIn PDF document text
- http://trunglam.vn/uploads/userfiles/file/39823181914.pdfIn PDF document text
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142d466cf9d1---33990542048.pdfIn PDF document text
- https://renhedc.com/uploads/files/202109091025112393.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/ohk9assnfqpg96qr01qd9heb65/fifefiba.pdfIn PDF document text
- http://cerritos.songhakbbq.com/uploads/files/junotila.pdfIn PDF document text
- https://gtijsr.com/userfiles/file/6179286534.pdfIn PDF document text
- http://elsped.hu/files/file/8508218389.pdfIn PDF document text
- http://spadhotel.com/basefile/spadhotelcom/files/80751713766.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_off0000d1d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1D1 | 17832 bytes |
SHA-256: acd209077d2b70453b6ffd96c48b72bf5ba37e14143d2976c6a30bbb01cf9731 |
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font_01_sfnt_off000100df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100DF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000118f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118F6 | 11320 bytes |
SHA-256: 09e6f93ec0340d6fe82ab2c909744085486d93a987ef55109b2eca1e346fc565 |
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