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 a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links pointing to compromised websites, suggesting a phishing or malware distribution campaign. The file's structure indicates it's a link farm designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://medvor.ru/uplcv?utm_term=building+square+footage+calculator
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c95f34dc733---48367914088.pdf
- http://ewinghighclassof1963.com/clients/e/e4/e4cb61fc1babc639533983e887b7272d/File/80668957367.pdf
- http://geredekombiservisi.com/userfiles/file/panixufowekagubuga.pdf
- https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/d6c197d3036917bab3e38b1255bab21e/3468989532.pdf
- http://www.sport-konyv.hu/userfiles/file/52983128368.pdf
- https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/74f46893139d23a5d3e1a92501430bd4/30845149471.pdf
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/e3fc0f0e6ff91b5d2d38e50ee51499e1/74529288428.pdf
- https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/160b275cee5804---30356746317.pdf
- http://fhhsclassof70.com/clients/4/42/42ce21dc30e429aa976ba070b22ccf93/File/68168805488.pdf
- http://espacioschillout.es/images/admin/file/86628468025.pdf
- https://mudrun.com/home/mud/public_html/ckfinder/userfiles/files/sirufinuk.pdf
- http://anhuizpyy.com/upload_fck/file/2021-5-17/20210517115308904085.pdf
- http://akcjonariusz.com/UserFiles/file/10812074473.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160c8a264823aa---58644457947.pdf
- http://xn----8sbxab3abskk3a2j.xn--p1ai/media/file/3483915383.pdf
- http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/7b6d500ce7460493bb2b61dab3ed8afa/wujiridalibusotawodojob.pdf
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/fu53e0c2suduslu2po9hgvmgdo/53658506131.pdf
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607981907c45c---40049186095.pdf
- http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/o3ttddcqvmctq077cj7hhr8054/96678041765.pdf
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2d0ff45c5c---bijexipigiwab.pdf
- https://daleplumbinginc.com/wp-content/plugins/super-forms/uploads/php/files/8a8eb60dda2d4d3e28f650a9c44c2c10/guralatefefijezinit.pdf
- http://kimbuunguyen.com/uploads/userfiles/file/fomujuvepuduzogimam.pdf
- 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_off0000e48a.bind602e5e9e4bdbccf5fcc3c2cc7f39a50bed7b53ac3d285bc977697bcaf9663a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE48A | 17116 bytes |
font_01_sfnt_off00011171.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11171 | 16792 bytes |
font_02_sfnt_off00012988.bin25a8ae7edbdc191726314abe9e9a54f81983478b26c4640479ba5896808cee38 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12988 | 10952 bytes |
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