MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains a large number of embedded URLs, many of which point to potentially compromised WordPress sites. These URLs likely serve as a link farm to redirect users to phishing pages or download further malicious content. The presence of multiple distinct hosts and the use of 'utm_term' parameters suggest an attempt to manipulate search engine rankings or track user clicks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1606f493544394---guramozax.pdf
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/824a7fe3afa84f1caccc6604981d4bd2/9712272768.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1608abc4dcaa66---wonopixarura.pdf
- http://kleiberit.ru/files/file/13089040310.pdf
- http://stlnsk.ru/uploads/file/54269981365.pdf
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/vum3dq5f7fhc2564uv4228v5ql/4016451579.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160b7677671140---nasebepidimorufigimur.pdf
- http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/jagobesawaxajajekewubomal.pdf
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160770eb232633---fijiteko.pdf
- http://akinmedical.com/uploads/file/87510843971.pdf
- http://toyotarent.kr/FileData/ckfinder/files/20210624_ED6D9A4CCD2B69C1.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/ed1a8b82724717123f96bfde15f4078e/besanedexobux.pdf
- https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/c1ded147c2e91cf64fb6d7644f3b749d/53918806143.pdf
- http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6afc12bbbc---waginuxinalozorodep.pdf
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aadf2d504b0---43195337917.pdf
- http://files.ibiza-ferien.de/file/retaxixixu.pdf
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7bef9d02a---14597787671.pdf
- http://chrisdepanneservices.fr/Sites/cds/files/lovozo.pdf
- https://planet-pvc.com/upload/files/pizaxid.pdf
- http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086edef985c8---89927733496.pdf
- http://alexdisinfestazioni.com/userfiles/files/totabejasol.pdf
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ce3eac21bf---sipelemadanawepenekuzuke.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=new+concept+english+pdf+free+download
- 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_off0000e791.bine5d30f17d7c7a26d643b53c09ba93de757e71811b670c10ea4fed284386f498a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE791 | 17060 bytes |
font_01_sfnt_off00011455.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11455 | 16792 bytes |
font_02_sfnt_off00012c6c.bin933945a723db7ab833cdfe8eefffe20512bdc5bb4b23c7708469ec839e08cebd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C6C | 10960 bytes |
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