MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and ClamAV as malicious. It contains a link farm pointing to numerous compromised websites, including WordPress uploads, suggesting an attempt to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://mavibusiness.it/file/77140162772.pdf
- http://merwepizza.com/upload/file/43296633086.pdf
- https://serviceservice.eu/userfiles/file/16562469378.pdf
- http://assistance.uz/images/shared/file/rebubekigefakiniduzolufen.pdf
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/1606c786097ef4---58897113558.pdf
- https://serwisnawigacji.pl/userfiles/file/25796649781.pdf
- http://changwontour.kr/FileData/ckfinder/files/20210621_221EE90DEFA96F21.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160db9237ec185---31655655455.pdf
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/m3ff43qgfcsdf1jcm3058svk7h/fufonavolunekeratixog.pdf
- https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/1cbd8tv7ctitfmf694ih60fsub/35133437652.pdf
- https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/1a2da2ee0f3cd43ff9df0594a2134dce/nijajalevumapinova.pdf
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/i3fqtt8vog947n5l19okmvvhjo/somikitawenejedizudepevu.pdf
- http://af.ssla.ru/images/fornews/files/17317806388.pdf
- http://asdgolfclubtoscana.com/writable/public/userfiles/file/josewikisowiwopupajenuv.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072627dc5a72---vowuvaregep.pdf
- http://kxzyjy.com/CKEdit/upload/files/xotazebat.pdf
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d2cb533e83---niwamupumarukulorumemiban.pdf
- http://chalappuram.com/userfiles/file/kutijegixelenegutosenufa.pdf
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f3a4874db6---93386720663.pdf
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/eba1f578f30be602f098317576302c96/67171060635.pdf
- http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f78c30d9f2---68897086814.pdf
- http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089517e8c693---jadawujijuzavuzopejujalu.pdf
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/276d4832dca681e0a67cad41f536eb55/37998751816.pdf
- http://fritz-fahrlaender.ch/download/banalaferal.pdf
- http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/wiroxivawovumo.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=how+to+change+your+fortnite+name+on+phone
- 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_off0000e871.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE871 | 16792 bytes |
font_01_sfnt_off00010083.bin6ba8585c6db87e243333fda458849642d6ab8cba39d3f30663c18697273c0a07 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10083 | 17112 bytes |
font_02_sfnt_off00012d15.bin4b2ed8afaf9b4f4754f328ce9268da0a3752bf29742150606544ec71cc53b4d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D15 | 11004 bytes |
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