MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to compromised WordPress uploads and other disposable hosting, suggesting an attempt to distribute further malicious content. Notably, the document instructs the user to disable security software, a common tactic in phishing or social engineering attacks to facilitate malware execution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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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://captaincook.hu/userfiles/file/79065381109.pdf
- https://apgr.eu/UserFiles/file/gisizapuwipezux.pdf
- http://redeyeldn.com/userfiles/file/84783708130.pdf
- http://thaihotelsale.com/FileData/ckfinder/files/20210918_CE77A70C2EC8B945.pdf
- http://cableesmaltado.com/d/files/gukir.pdf
- http://0851gay.org/userfiles/202109file/2021091417363370554.pdf
- https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/161421771700cb---91713021064.pdf
- http://woori-tour.kr/FileData/ckfinder/files/20210914_0937DBB9CF2B9190.pdf
- http://phuquytravel.com/nguyenvanlinh/files/66574024911.pdf
- https://peptidturkiye.com/ckfinder/userfiles/files/99561653743.pdf
- http://naturalwonders.com/uploads/files/87969714604.pdf
- http://dellalontra.it/userfiles/files/xabokotiralulogijotaj.pdf
- http://xn--or3bi2da319p.com/upload/fckeditor/file/vojir.pdf
- https://www.mftelhas.com.br/adm/Editor/ckfinder/userfiles/files/zuvuwarabesuni.pdf
- https://jagamimpi.info/contents/files/2576718944.pdf
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c1489d53ab---jozatefiruwewo.pdf
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145a93caa39e---dalajoxegizudokasefevov.pdf
- http://thevisionkharj.com/userfiles/files/wezegumukiluri.pdf
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/e692c3ab57246a2167e9cf68f1cb6011/84569178855.pdf
- https://nilsahost.com/calisma2/files/uploads/59084821276.pdf
- http://puzynowska-kancelaria.com/userfiles/file/48110957121.pdf
- http://wangyiphk.com/userfiles/vekexuluwedo.pdf
- https://oferta.lt/i/File/31679923260.pdf
- http://lavalnerina.it/userfiles/file/fopewibaboxafivejoxezu.pdf
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c971ed1926---31747154091.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=good+app+lock+for+android
- 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_off0000db0c.bin51c6a78e2eac793300e478b024a59b65e90b4486e0754815de3bafe4d08f81c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB0C | 17084 bytes |
font_01_sfnt_off00010725.bin86206cb8949cceaf20cc7df39659a9b511d656ec477ff8d530e976110ec43234 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10725 | 10348 bytes |
font_02_sfnt_off00011e8a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E8A | 16792 bytes |
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