MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to various domains, many of which are hosted on compromised CMS uploads. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this is a tactic to obscure the final destination and potentially host malicious content. While no scripts were explicitly extracted, the nature of the link farm and the ClamAV detection indicate a malicious intent, likely to lure users to phishing sites or download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://bright-inter.com/file_media/file_image/file/xupidilapuxamekum.pdf
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/e1de798f813b4f3aef84cbe07b57c032/vakagimujebujadetuwugika.pdf
- http://gilleyfamilyreunion.com/clients/6/6c/6ce887ac6ce8bbcacf46524318b1f362/File/kanevoruto.pdf
- http://theeultimatenetworker.com/ckfinder/userfiles/files/sorinawuvefofon.pdf
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/061a4782ba83f0f04777a2238aa497ef/16559631916.pdf
- http://temple.mo/userfiles/file/19931332264.pdf
- https://zanhotel.ro/beficientconsultingFiles/file/29343194807.pdf
- https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/90757550c80052156d6442273265e0d6/xevirepinugezef.pdf
- https://alihuata.com/userfiles/file/kopodarekabewujenu.pdf
- https://bdsvieclam.com/upload/files/69072445025.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609429a786393---savixapisixeduvem.pdf
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9828a598e6---kisulagovisidepenumibefeg.pdf
- https://ilexgold.com/app/webroot/files/userfiles/files/zilojo.pdf
- https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b38df8f5f14ac814a65dbcfff1b8d9f4/nokuzelokodatimunubifun.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e09407ac76---83946090890.pdf
- http://adabaskimerkezi.com/upload/file/wavufitewidiseno.pdf
- https://area34.info/wp-content/plugins/super-forms/uploads/php/files/eabh24hnudin1mnjhr4m0h6r31/2580497299.pdf
- https://baxsporthorses.nl/userfiles/file/walevepuka.pdf
- https://slide-bearing.com/d/files/fosodoparudaxuv.pdf
- https://primewestelectrical.com/wp-content/plugins/super-forms/uploads/php/files/aacd0b776b6c4e7f52cd08fdd4c5fdf6/jufat.pdf
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16071eeddc54c1---29152591081.pdf
- http://muzeumostrowiec.pl/obrazy/file/tonuto.pdf
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b59a54efb33---36620324807.pdf
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/d59bc709636820718dbaf9e2da59ed4b/binojom.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=excel+vba+create+new+workbook+and+name+it
- 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_off0000e2dd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2DD | 16792 bytes |
font_01_sfnt_off0000faf4.bin7490cd9a934a8c73b077bf4f7dda6f9e31bb1181ca3da8223205069a1b6d4dd3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAF4 | 10832 bytes |
font_02_sfnt_off000113fb.bin5ee6cbbaf2113ce2caca08b658fa04f416bd4cf63a65299ba719d8eddc4a1db9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113FB | 17532 bytes |
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