MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, with numerous embedded URLs pointing to potentially compromised websites or disposable hosting. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics suggests a deliberate effort to obscure the true destination of the links, likely to evade detection and distribute malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 https://thieumaunao.vn/workspace/develop/uploads/ck_upload/files/bepodakijusazojonufake.pdf In PDF document text
- http://kbchina.de/upload/mitimepepajuro.pdfIn PDF document text
- https://castel.ro/userfiles/file/285761300.pdfIn PDF document text
- http://jonkmp.nl/img/cms/file/nuparata.pdfIn PDF document text
- http://angelofthewinds.net/ckfinder/userfiles/files/71532567971.pdfIn PDF document text
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/16132f9af959f1---50164729613.pdfIn PDF document text
- http://mhfmjournal.com/data/22/2/55/64/2544879/user/2788947/htdocs/userfiles/file/dunimodusomafaxoledusagos.pdfIn PDF document text
- http://walthamclassof1985.com/clients/5/52/52060312c10aa816a718e90a19a6a7a1/File/xolifar.pdfIn PDF document text
- http://chinalanpa.com/images/upload/File/72055683649.pdfIn PDF document text
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160c97348bc239---34349539631.pdfIn PDF document text
- https://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/23f29649392eb09db67eca91ddb08205/tonuxekamuwaguvavonagev.pdfIn PDF document text
- http://dpsszczytno.pl/photo/file/xevisoxulepezereruno.pdfIn PDF document text
- https://syteq-pro.com/userfiles/file/23777692987.pdfIn PDF document text
- https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/9avssgvqlu72oletper1c7feb1/77693966475.pdfIn PDF document text
- http://tfh-filter.hu/_user/file/65065681818.pdfIn PDF document text
- https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/59cef6a2e6154b85f511cf1969bd61e5/69527362055.pdfIn PDF document text
- https://pametnidom.hr/pametne_kuce/userfiles/file/67880044940.pdfIn PDF document text
- http://www.jfac.kr/ckfinder/userfiles/files/86434317065.pdfIn PDF document text
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/eqdb13o116dkmnbf55l5v7fk04/sitekovaf.pdfIn PDF document text
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/160aa69fdaf9a1---midavitexutof.pdfIn PDF document text
- http://thepokeluau.com/uploads/files/58951941403.pdfIn PDF document text
- https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/b8e48115919945a2878f6da9f8310410/61785512265.pdfIn PDF document text
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160f05020416ff---23983471272.pdfIn PDF document text
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1608135a1b1ce1---20724120060.pdfIn PDF document text
- https://elearning-chemistry.ro/userfiles/file/nomaduzikexideximafux.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=powder+coating+troubleshooting+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e099.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE099 | 17768 bytes |
SHA-256: aeb7e6c16027c096c8312d64087b400c0fb39f1eeef11fac4d7fc88151deaa25 |
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font_01_sfnt_off00010e55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E55 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001266c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1266C | 11224 bytes |
SHA-256: fa2c842bba5e145e9323e072a4f8ad967053a9a7f53201efbcea160a5eb775c8 |
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