MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate the document functions as a link farm, directing users to multiple external websites, some hosted on compromised WordPress installations. The embedded URLs suggest a potential lure related to software installation, which is a common tactic for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://infrive.ru/uplcv?utm_term=how+to+install+stremio+on+android+box PDF link annotation
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/c2ee9517b5020350621af473fcb144c2/golixusexetapupowaxo.pdfIn PDF document text
- http://www.tecs4.com/intranet/ckfinder/userfiles/files/lutimorenadedagejiwawubow.pdfIn PDF document text
- http://aelma.com/sites/default/userfiles/file/fizawejukipimuno.pdfIn PDF document text
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/600927a1154b565cabc2e1360ec781df/zelagepunilafidabinu.pdfIn PDF document text
- http://www.lugashotel.com/data/editorfile/10691236612.pdfIn PDF document text
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089ae7c1af8f---pobiketajuwedida.pdfIn PDF document text
- http://tokyo-sanritsu.com/userfiles/file/movowapufajoravo.pdfIn PDF document text
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/gih2stbuluea83bn1lu9vot9rf/4477349026.pdfIn PDF document text
- https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/6c246e7f01666253d23147119145f4dc/5494524523.pdfIn PDF document text
- http://piri-piri.pl/ckfinder/userfiles/files/guxapifarazadajopudesefu.pdfIn PDF document text
- https://detskeihriska.eu/ckfinder/userfiles/files/57577093586.pdfIn PDF document text
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d8ccf973eee---98820147177.pdfIn PDF document text
- https://dalyanestate.com/userfiles/file/96362404375.pdfIn PDF document text
- http://goddesshair.net/upload/users/files/58982812971.pdfIn PDF document text
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160872bcb7bcb1---9332039997.pdfIn PDF document text
- http://aranykoronakft.hu/userfiles/file/ferunaforufelojos.pdfIn PDF document text
- https://aawyx.com/sites/default/imageuser/file/vanotedinixapemakob.pdfIn PDF document text
- https://winpoasia.com/ckfinder/userfiles/files/meganun.pdfIn PDF document text
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/7f370121cf9b9b1310736c46083de12a/2406627067.pdfIn PDF document text
- https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/1610ccd661f58b---robodufirebuzififide.pdfIn PDF document text
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/997487a6e2c54a8b41a319123e1ce137/70757416147.pdfIn PDF document text
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1055ec9ae4---31953284801.pdfIn PDF document text
- http://crosswaysrecruitment.com/userfiles/file/72371151208.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_off0000eecb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEECB | 17404 bytes |
SHA-256: bc516b5a2bf344492dd18565ba3b66c4e9cbc2d43535d48bd903bef477d10027 |
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font_01_sfnt_off00011c35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C35 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001344c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1344C | 10728 bytes |
SHA-256: 18bb0f0bd8583f9749159eee746115c65dc009eab8704996f5f614867a4b1659 |
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