MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting. The ML classifier and ClamAV both strongly indicate maliciousness, classifying it as a phishing or trojan PDF. The primary function appears to be directing users to potentially malicious external sites through a link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://ranaghatpchsschool.org/userfiles/file/veriwubefajebiruri.pdf
- http://travelport.pl/userfiles//file/rarazapatibivumuwa.pdf
- http://iaestedresden.de/userfiles/file/26846057677.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/474eih9pblj1heufruhabuv6s1/11449022749.pdf
- http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ad864c705da---puxizunakulepafebisu.pdf
- http://selfmadefilms.nl/userfiles/files/63955265271.pdf
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/eaaad1f8cb00494e34fc02b99f3448bb/56706234544.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607a5602954fa---67429111373.pdf
- http://patp1ryb.ru/media/file/zovonedafisewegadenugisix.pdf
- http://parkhigh65.com/clients/4970/File/sanosadugesuk.pdf
- http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/sukh3cbeh3og8s57dmuhc0f39f/purujekijeled.pdf
- https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1608318352e4a5---fodazutoxadomoxotat.pdf
- https://detectiveoffice.net/userfiles/file/86294377454.pdf
- http://firewheels.pe/userfiles/file/ginoranolo.pdf
- https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/fb7c5f64fae56d4675f65d25509ca45a/23264676271.pdf
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/c95385e23ecd64639bc0b084247ce21c/kajuzigogubije.pdf
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077d435899ba---45778761295.pdf
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c9c22b6ac39---jipojuledururamoxukavofit.pdf
- https://chetanaus.org/bheru/uploadfiles/file/xugujubuziligesefuf.pdf
- http://alwaysfavorentertainment.com/clients/879371/File/56569390930.pdf
- http://bigband-ulm.de/userfiles/files/74815739297.pdf
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/fd6adcdf15283c5b952b4710ddf77f54/40128621404.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=can+tea+bags+go+stale
- 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_off0000f6be.bin2bc92d64336192d3b2f884beda28ea86827bd7afef11b8274d6c8c5c0d95ea00 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6BE | 17184 bytes |
font_01_sfnt_off0001231a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1231A | 16792 bytes |
font_02_sfnt_off00013b31.bin27ce7708c4a5aa32b3c2f6383f2c4ce14a1eaa668cd3914746dcb9fbef79297e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B31 | 10264 bytes |
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