MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for delivering malicious content. The PDF also contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://area34.info/wp-content/plugins/super-forms/uploads/php/files/0trnblmas2i09j2ofrdkjm3em3/67770533507.pdf
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160c65afbcf9bd---60613835243.pdf
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160b4f4c48d0a3---23653967114.pdf
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ba6270e215c---10573565098.pdf
- http://www.euro-fly.eu/userfiles/files/48072679678.pdf
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16071a82e42822---laxofaramom.pdf
- https://dock-levellers.com/upload/files/10622280148.pdf
- http://stoewebdesign.no/userfiles/file/95155315852.pdf
- https://alihuata.com/userfiles/file/zejowalikibo.pdf
- https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/f20e54eb397a7b5ce4351fdf3c3f6efc/37006856028.pdf
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/a9809d937f2d8bb939ef40c746c91ae5/woxup.pdf
- https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/fa218444e17ecaa7d29923a9f47f2e37/kexopizes.pdf
- https://www.rekalibracija.com/wp-content/plugins/super-forms/uploads/php/files/0def31814d4bbbbc6070e589efa93ac8/kitepuzudezekatepegokew.pdf
- http://1137.jp/app/webroot/js/ckfinder/userfiles/files/17431231442.pdf
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c8737e12c5a---65102879285.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c2bb814bb8b---gavekolan.pdf
- https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/04b9a7d4794aa752faa3f164fa1ba9af/kuravometonokivuladonob.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a3bdb49b7f---61285327439.pdf
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/436a8fb6753e2770c43fa4ccb770f0f8/4962591007.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099ba2d567a0---pakipozavowavive.pdf
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081963ce143d---zuxevagubas.pdf
- https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/sa9ca2tah85i3pl2mcevv90geh/kakesex.pdf
- http://kibbkw.com/uploads/file/pemafavanonalozujad.pdf
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16080da593658e---71087692297.pdf
- http://mega-gold.com/userfiles/files/fedamupumipiwuzataxiw.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=how+to+get+diarrhea+stains+out+of+carpet
- 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_off0000f461.bin5d18b585c7acd8a6be9927ca73dbad33fc28307d3cd1e51f24deec70be1637ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF461 | 11028 bytes |
font_01_sfnt_off00010dd6.bina44f7fc6bf26613f02645212532f62d88cbea912671ec23f478b2d287c5541fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DD6 | 16740 bytes |
font_02_sfnt_off0001399c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1399C | 16792 bytes |
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