MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics and a machine learning classifier as malicious, specifically as a phishing trojan. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites, likely to host malicious content or facilitate further attacks. The presence of these links and the overall detection indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ab67178d034---vofujapi.pdf
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1607089d64fe84---kifawonufe.pdf
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/2799b14507d31247670325e358b40ebc/11806348394.pdf
- http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095c3f6af7bb---jugowaja.pdf
- http://kagoshimakojintaxi.com/userfiles/file/keturomekinezejofo.pdf
- http://khiconghoixuancong.com/Khicong/admin/userfiles/file/mobuvisekefereju.pdf
- http://princeverma.in/uploads/files/gawesiwovudonivi.pdf
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9bb278f084---30499331012.pdf
- http://ggmtc.net/userfiles/files/figiwojaratokodon.pdf
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b456602d706---5940441553.pdf
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/1a8dd099dbfe01757476f97ffe20be81/14278733216.pdf
- https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dc90b5ee96---7686887513.pdf
- http://0930actress.com/files/files/pabanubaxugipiretevujo.pdf
- https://aitalk.vn/upload/files/devomimedajifew.pdf
- http://mrmax.ca/clients/9797/File/memabafe.pdf
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160741e64dbd17---tubixuvapadedobuw.pdf
- http://aarogyamedico.com/userfiles/file/98659201266.pdf
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd8beaaeeb5---fugivokimizu.pdf
- https://andrejc.si/files/file/texifodogososom.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160920137a4320---bewusomem.pdf
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/463a1f8aed06bfd3ac890c4010e37211/80063298813.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=i+can+tear+down+mountains+riddle+answer
- 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_off0000ec80.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC80 | 16792 bytes |
font_01_sfnt_off00010492.binfc39a0b7d9aa2e8800d324cd0b3f65780607e16a83bbafca0077393f4c953552 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10492 | 17304 bytes |
font_02_sfnt_off000131bc.bin7b31238c43e1943db62f4079695ec94ddbe38a411f7801f9a40dcf43516ac99a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131BC | 10668 bytes |
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