MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites and are structured as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to lure users to phishing or malware-hosting sites. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a4d030ec21f---xebeze.pdf
- http://pajurioverslas.lt/ckfinder/userfiles/files/98680888218.pdf
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160e66cc36f2c7---difiledikexopi.pdf
- https://irrisyst.eu/files/file/19916281824.pdf
- http://fishingas.com/userfiles/file/3210378936.pdf
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/7eb32b2cfc4e1701fbfb01ba1fa7721d/60207559696.pdf
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16082f9ed24e8a---2649891124.pdf
- https://ensegun2.com/ckfinder/userfiles/files/pizirigija.pdf
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3560c85f28---79224373309.pdf
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dc1a143c84---2624760911.pdf
- https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/9jfgpv8egsqjju7pg5vgudusv6/31704284235.pdf
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160bd406de919f---wabowimefisufitisaged.pdf
- http://etre-belle.su/images/file/gonewumifarilu.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/j1b7t6obuf37j9i25e77hd8o1k/63772654759.pdf
- https://fetogram.com/images/upload/files/savetajuzipetavexip.pdf
- https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/6b78f450196f037eacd6b86dc7cc6d23/36084660707.pdf
- http://aksaaydinlatma.com/img/editor/image/file/41835302978.pdf
- http://solarissoft.com/img/userfiles/files/26815244260.pdf
- http://sladkiy-ostrov.ru/userfiles/files/74363153691.pdf
- http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16080b5aa0e973---javutupepofejewelametira.pdf
- https://juvelyrikoscentras.lt/Files/file/tiponevopiduvifumabakixog.pdf
- http://tindangnhadat.vn/upload/files/goverofamatupaparo.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160742b5d4f32c---puzomeroliganebekobeb.pdf
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a67550299d0---79428021185.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=watch+mockingjay+part+1+online+free
- 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_off0000e790.bina6e2be2a6a9c53cda563b1afa31fbbdeacf85d9b83deca5f5b0f2e33fc0def13 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE790 | 17868 bytes |
font_01_sfnt_off000115ee.bina8bef4291cb6180671a5865a7783b1bbf6cfaf30112c42b8081b475fa9861530 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115EE | 11140 bytes |
font_02_sfnt_off00012fd7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FD7 | 16792 bytes |
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