MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains a large number of embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, suggesting it functions as a link farm. The primary purpose appears to be redirecting users to potentially malicious content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://ketchas.ru/uplcv?utm_term=mxiii+4k+update PDF link annotation
- http://membranekeyboard.pl/_data/file/didipesizug.pdfIn PDF document text
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/161314b3a92b05---jurasavugu.pdfIn PDF document text
- http://mashhadgardi724.ir/basefile/mashhadgardi724/files/vopoxojutuk.pdfIn PDF document text
- https://fontaine-eva.fr/userfiles/files/sofaturizosoj.pdfIn PDF document text
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/161314e419d9bd---11987152114.pdfIn PDF document text
- http://bluecars.pl/userfiles/file/65453120229.pdfIn PDF document text
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/d62dd4a36b82555b405d9e365a8de3ba/92314198834.pdfIn PDF document text
- https://leise.ru/admin/ckfinder/userfiles/files/gavolimivolipenizevazi.pdfIn PDF document text
- http://immobilieninvestors.eu/userfiles/file/wanakisalijujizaba.pdfIn PDF document text
- https://searchkar.com/ci/userfiles/files/74616755496.pdfIn PDF document text
- https://aadhaarretail.com/administrator/imagetemp/file/98968148454.pdfIn PDF document text
- http://montpellier-businessplan.eu/mbp/upload/images/images/upload/ckfinder/50492447081.pdfIn PDF document text
- https://hssanesteban.cl/files/mosuwubi.pdfIn PDF document text
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161390a77c59d8---kemapisugaxe.pdfIn PDF document text
- http://hyundaidongdo3s.com/images/files/gijemukuf.pdfIn PDF document text
- http://terhautz.com/upload_files/files/jefabiwuna.pdfIn PDF document text
- https://luathoanghuy.com/uploads/files/13892905566.pdfIn PDF document text
- http://stensoproject.com/userfiles/files/milawoxelifupagezewif.pdfIn PDF document text
- https://hurghadalife.net/userfiles/files/bexezajitoz.pdfIn PDF document text
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613c483dac713---97714773525.pdfIn PDF document text
- https://curvy.tw/upload/files/96294337162.pdfIn PDF document text
- http://matsusushionline.com/uploads/files/70756498651.pdfIn PDF document text
- 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_off0000c459.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC459 | 17240 bytes |
SHA-256: 7c164c368e08925d9d5efa48748612b8157a30a022c0014f8a75c32be21b2e80 |
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font_01_sfnt_off0000f12f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF12F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010946.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10946 | 10212 bytes |
SHA-256: 9ee6c9e2caf51f0e196dccd23dba98cc274bdd5fa84d33733b69a2d4f944d760 |
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