MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains a link farm pointing to multiple compromised websites, which in turn host other PDF files. This behavior is indicative of a phishing or malware distribution campaign, likely using spearphishing attachments as the initial vector. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
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://kiuanai.com/userfiles/file/18399639255.pdf
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16071e7017bdbc---lonopoti.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/aac818ad942ef1eb9e9177a17a7f8ecc/21463051339.pdf
- https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/60d1abd99cd798309774ea731c1db6c2/5924841685.pdf
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/16072aafc41249---kejemaroxelozoguv.pdf
- http://anhuishangbiao.com/upload_fck/file/2021-6-13/20210613151716849275.pdf
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/2r3toh4ci8t373re3qg00l9p23/96293254048.pdf
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/57chgah6veavdq9glamiqa3kur/59012397102.pdf
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a7a9022500e---33093269879.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b7b4b97dd0---77668471113.pdf
- https://inijariku.com/ckfinder/userfiles/files/40460105434.pdf
- https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/3932480a88907b4d6316245e63d37f80/dodadawi.pdf
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2e25dbae06---fovetufaza.pdf
- https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/569be2f356f2780ff9bb5547d7db13e9/50950012597.pdf
- http://ptaki.info/imgekoprojekty/files/pevipitozilelexiveregapu.pdf
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/5372fb649a292fbfbc8da0a6b64d6e3a/rebasufifojup.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/584ce6360c47adde409727e3dff21ef7/nefamofidawozo.pdf
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/0i0079ri8kppra68022lo2gfdk/xuxonevisiriw.pdf
- https://securityguardsupply.org/php/uploads/file/96464169399.pdf
- http://ahkjt.com/upfile/file/tixofatezijexirijoj.pdf
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d28920aa36e---givasugunovumetagowiwe.pdf
- http://poltinik.ru/userfiles/file/61867776575.pdf
- http://slp70.com/clients/873855/File/kezutebebizezinasa.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=strategy+in+poker+business+and+war
- 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_off0000e9c1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9C1 | 16792 bytes |
font_01_sfnt_off000101d3.bin1a2941d60def8561cd2f6f8538b82d35cc1a6c1caab4ba0818d3c6881d3de161 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101D3 | 15932 bytes |
font_02_sfnt_off00012aa1.bin7f44006e1df3af75a5ecf325e24be6ae21ef710a3f70829f5cc316af57bd549e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AA1 | 11128 bytes |
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