MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous links to external websites, many hosted on compromised WordPress sites, suggesting a link farm or phishing campaign. The presence of embedded URLs and the nature of the heuristics indicate an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://krisoc.ru/uplcv?utm_term=pokemon+sword+and+shield+official+strategy+guide+pdf PDF link annotation
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/714gh2i63b7t9bjnltfq38a13n/gefali.pdfIn PDF document text
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/c8dccd14d4ce983cbb2cdec8e9c24b6a/50673571341.pdfIn PDF document text
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c97f912450---87351053103.pdfIn PDF document text
- https://wecareu.net/ckfinder/userfiles/files/nikaferajilofibapuxowigor.pdfIn PDF document text
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b658605a6---diwodetitikis.pdfIn PDF document text
- http://veraschwemmle.de/fckdata/file/zupom.pdfIn PDF document text
- http://pm-property.pl/userfiles/file/wibuginotexumaret.pdfIn PDF document text
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/db45d0a4eab09858307190b38278f4e2/rupabuzaxaporig.pdfIn PDF document text
- http://elcampoeco.org/FCKeditor/file/todusurutit.pdfIn PDF document text
- http://www.celso.org/download/rosobifugalovimize.pdfIn PDF document text
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073f05aba981---xiwabakogoxo.pdfIn PDF document text
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/0106b60ec5fce3f1b36625b0eae3713a/fivosatufasifibo.pdfIn PDF document text
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160b5d2a0e9fce---pasif.pdfIn PDF document text
- http://gz-theoutfit.com/UploadFiles/FCKeditor/20210705041117.pdfIn PDF document text
- https://invest.pl/userfiles/file/naworajeb.pdfIn PDF document text
- http://alemotta.com/resources/original/file/fidurixonivused.pdfIn PDF document text
- https://gulceoyunlar.com/calisma2/files/uploads/69780919784.pdfIn PDF document text
- http://amadpich.com/userfiles/file/xomakavegobopu.pdfIn PDF document text
- http://lasfyy.com/uploadfile/file/20210531164125060.pdfIn PDF document text
- https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/e14173084bee0acca209b4bdbb2684a4/nonokutixad.pdfIn PDF document text
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1607aa8f9f0c8f---bepukijazuz.pdfIn PDF document text
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606fd79e12bfb---togakiguwuvosevetonu.pdfIn PDF document text
- http://xn--80aaeiengkwpz6p.xn--p1ai/pub/file/51856800976.pdfIn PDF document text
- https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/uh7g34thtupo5gn9tde0o19fte/birabamixufezofafa.pdfIn PDF document text
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/8d8c214315e9de39885e433e1de30c1d/30823561885.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_off0000cd14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD14 | 17476 bytes |
SHA-256: 2e664801e0037c0eb33227cf46e982bdad09153787eca59d638181a0ce2b169a |
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font_01_sfnt_off0000fa56.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA56 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001126d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1126D | 11460 bytes |
SHA-256: 40857667220fcfc8b3320e183db26eaa569535e27dafe062f7e40c81485dea67 |
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