MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple heuristics indicating it is a link farm and a lure for a password-protected archive. The embedded URLs and the ClamAV detection strongly suggest malicious intent, likely to deliver a second-stage payload. The ML classifier also flagged this PDF with high confidence.
Machine Learning
- Nyx PDF Classifier malicious score 0.9901
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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=unlock+android+phone+password+without+factory+reset
- http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613cf23d20bb1---31471450873.pdf
- http://pphjako.pl/userfiles/file/36236740993.pdf
- http://md-servicios.com/userfiles/file/86960368434.pdf
- http://kor-ra.ru/UserFiles/file/noxaxen.pdf
- https://rougezenekar.hu/files/file/27680339330.pdf
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16137aa0ccab04---sujojadokopo.pdf
- http://coomargroup.com/ckfinder/userfiles/files/12952983580.pdf
- https://fceresources.com/ckfinder/userfiles/files/wadaminoxaderuwoleb.pdf
- http://apismorava.eu/docs/77680030923.pdf
- http://amirafouad.com/uploaded_files/file/95002788854.pdf
- http://sanarina-coaching.de/ckfinder/userfiles/files/dusopibiminijewuna.pdf
- http://eskuvoiiranytu.hu/blog/file/fedunovegopapofaz.pdf
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133a4259155e---mujivikijogoriru.pdf
- https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/82fb1600e96142c56a3152f413288939/77239338498.pdf
- http://mvpbuilding.com/userfiles/file/53139805868.pdf
- http://rowerowaszkola.pl/imgturysta/files/34882883068.pdf
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/fd29c5b81b9b96b259c20a431a09a68a/86996224977.pdf
- http://cosyromania.com/media/file/67686804679.pdf
- http://teamtrinity.net/trinitya/file/putujusifelinigasivepula.pdf
- http://hasicimosnov.cz/foto/Image/file/jizolo.pdf
- http://parcroyale.hk/userfiles/banasulegotawonituluri.pdf
- http://architettoletiziamasciotta.eu/userfiles/files/35140314263.pdf
- http://aotem.com/data/home/qxu1780220113/htdocs/uploadfile/files/40062331298.pdf
- https://doctornhospital.com/banglanews24/editorsfiles/files/menasunujus.pdf
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/a7ecef4d6e04dd1e1e9b4dd041b1ff93/22387430563.pdf
- http://servicedental.it/userfiles/files/soriforefuman.pdf
- http://henghuitong.com/jingkelun/userfiles/files/20210914091127.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_off0000cb12.bin0991ad0f625140869d857167be44a9c587ba198d83f5ec36610921b7e1d0e837 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB12 | 17212 bytes |
font_01_sfnt_off0000f787.bin9d115bed54d6e39e2dd1f7aeb40ad37b662dd7178f3ad05f152363567a2cf730 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF787 | 11116 bytes |
font_02_sfnt_off0001117d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1117D | 16792 bytes |
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