MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains numerous links to external websites, many of which appear to be hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this. The primary attack pattern involves directing users to external sites, likely for phishing or to download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://ketchas.ru/uplcv?utm_term=hold+my+hand+hold+my+whole+life+too
- https://frontlinetherapist.com/wp-content/plugins/super-forms/uploads/php/files/5657914fcd1ca1022fe47f2f1a31dd1a/86515417795.pdf
- http://lapawan15.com/shop/fck_file/file/75208812162.pdf
- http://akkoryazilim.com/userfiles/file/66813979934.pdf
- http://solamsys.com/userData/board/file/4093353622.pdf
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b388db2c4c9---bogenoregozanakigorumeme.pdf
- https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608efe5676617---77780458006.pdf
- https://advantagelic.com/singhania/downloads/file/giwonepumawida.pdf
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba7f848f855---27058306741.pdf
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16086d37460e8f---buselomaretuposako.pdf
- http://worldcar.jp/userfiles/files/69914264732.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/mlq05she7fcefrb91je7hh1ovr/poxizalasovepanitinuja.pdf
- http://angarakshaksecurity.com/userfiles/file/tunomuwuvuxijotilora.pdf
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609834772a77c---1868315998.pdf
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7c38cd466---rawovogovenisap.pdf
- http://woodbridgeabw.com/uploads/files/449242163.pdf
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/f6d4dab89531f30fa1007921cf9deb4f/lunimezofen.pdf
- http://bilmatbasim.com/userfiles/file/norud.pdf
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160971f5a34dd3---zijafexutetovenijawevamof.pdf
- https://accesoriosalmayor.com/images/userfiles/file/35824537732.pdf
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a06c4aaf8bc---dojuguma.pdf
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/slgfsi6kfs6f599j9sv36kt57v/42565546908.pdf
- http://copelandreunionla.com/clients/6/66/66f6f3de7053633686652f51c4c00696/File/bisovakenig.pdf
- http://dailygiasi.com/uploads/userfiles/file/69640155504.pdf
- 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_off0001056f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1056F | 16792 bytes |
font_01_sfnt_off00011d81.bin736f6caf2c26940640ce3adc3f79ba13f21c8217a05337c5df3a657c9564aa66 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D81 | 16772 bytes |
font_02_sfnt_off000148e7.binca2ab4529107c4fa7a916d8cf2f42628b521cf87597e56cbd954e3207a23ad19 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x148E7 | 10544 bytes |
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