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 as malicious, including a critical ClamAV detection and an ML classifier. It functions as a link farm, containing numerous URLs pointing to compromised WordPress sites and other disposable hosting. These links likely lead to phishing pages or further malware downloads, indicating a malicious intent to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://synerhu.ru/uplcv?utm_term=connecticut+marriage+license+application+pdf PDF link annotation
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/1oievpbsverr7lrc7s4qrj64ji/31759893189.pdfIn PDF document text
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160982f3da7708---7473650236.pdfIn PDF document text
- https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3d99c3fcf2---41747592910.pdfIn PDF document text
- http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d65e85c08ce---wadojaxalisi.pdfIn PDF document text
- https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/9176eb5c4684465d9b86e7d22c3111ea/19519904161.pdfIn PDF document text
- https://abe-rdc.com/userfiles/file/42263481973.pdfIn PDF document text
- http://land89.com/ckupload/files/fewazebixisowobibu.pdfIn PDF document text
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/2li532mc1erp0r4qa62jeob5d3/zupevoz.pdfIn PDF document text
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5ec72626d0---mopiwodun.pdfIn PDF document text
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/6c924fed44a7f8f3154d760f6abf4d0d/puramexeka.pdfIn PDF document text
- http://www.hydro-tg.pro/upload/file/sazezamevabutukaja.pdfIn PDF document text
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/614c9e9c1034cf29ca842b495e737e33/84767603280.pdfIn PDF document text
- https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/b8h31ch98h1im6geoq5ftfqod1/soleferem.pdfIn PDF document text
- http://kaowei.tw/image/files/20210620_040457.pdfIn PDF document text
- https://condicionamentofisico.com/arquivos/file/64914667229.pdfIn PDF document text
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/b93866228796bc92e68e8f0d916756df/vugaxikugoneram.pdfIn PDF document text
- https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/d2a8a394c59c09256edb86bb24224000/tevipitolulinuwofugozepi.pdfIn PDF document text
- http://ekolojikweb.net/upld/userfiles/file/55415903948.pdfIn PDF document text
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/29d1salgql3jtka9rltt0vccuq/demakizadivajaxosumivemu.pdfIn PDF document text
- https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077255460f4a---65293527197.pdfIn PDF document text
- http://24cvety.ru/upload/files/29308461363.pdfIn PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/6a2eeaebdde84a5f816b60512cab2678/55961551299.pdfIn PDF document text
- http://palaciodelosnavas.com/userfiles/file/86761137923.pdfIn PDF document text
- https://glbtrader.com/userfiles/file/pafemasifomuruw.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb61145844d---xawotijerodilofirek.pdfIn PDF document text
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16086f213348dd---32529909551.pdfIn PDF document text
- https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/55dc22c5acf52a00ee77360acf13aa5f/dipidufirudusokex.pdfIn PDF document text
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a502673c1c3---rilil.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_off0000eadb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEADB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000102f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102F2 | 11092 bytes |
SHA-256: 56d951aa981ea2f5ffb2808e0451451dd2261ea8e12983e1cef9392d63e5d1f5 |
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font_02_sfnt_off00011c99.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C99 | 17368 bytes |
SHA-256: 989c51bf34d69fceb29b98cfaf8444120814cdeac11769ccf20cc4241868e1bb |
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