MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous URLs, many of which are part of link farms hosted on disposable or compromised domains, suggesting a phishing or malware distribution scheme. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this, indicating the PDF is used to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://huntic.ru/uplcv?utm_term=how+to+change+word+font+on+android PDF link annotation
- http://sentezetutmerkezi.com/upload/ckfinder/files/74606613548.pdfIn PDF document text
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614e4793701b0---keged.pdfIn PDF document text
- http://elrey-uslugi.ru/media/file/gomimibesesuvalulikeduke.pdfIn PDF document text
- http://tanriovermensucat.com/uploads/genel/files/75867159440.pdfIn PDF document text
- http://jezirka-biobazeny.cz/UserFiles/File/27098415425.pdfIn PDF document text
- http://www.ap-arte.ro/fckupload/file/nukifopawufined.pdfIn PDF document text
- http://discus-rus.ru/upl/file/76767548873.pdfIn PDF document text
- https://confeccionesruiz.cl/UserFiles/File/tevumijigolijerodolof.pdfIn PDF document text
- http://kleinschadenexperte.de/userfiles/file/65525746033.pdfIn PDF document text
- http://www.moyekolodin.com/files/wexuxasonadulafamotunaxub.pdfIn PDF document text
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/54dd0f29c531dc2fa231ed038e8ce3de/24798817204.pdfIn PDF document text
- https://birsamundapark.in/userfiles/files/zuxivukidegamegurek.pdfIn PDF document text
- https://campermagazine.tv/public/file/53516787611.pdfIn PDF document text
- https://riosemarescentrodemergulho.com/ckfinder/files/23297714542.pdfIn PDF document text
- http://benly-carson.com/product/files/21390719847.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/161363db6785b9---mupaneril.pdfIn PDF document text
- https://greenlandpark.com/uploads/files/80050717051.pdfIn PDF document text
- http://image.dlib.vn/libedu/news/bvu/20210920/file/zuwit.pdfIn PDF document text
- http://patp1ryb.ru/media/file/bomepaxomeka.pdfIn PDF document text
- https://sklepbonus.pl/userfiles/file/nixibebamitilugos.pdfIn PDF document text
- http://fabiocaronearchitetto.com/userfiles/files/tevilusivubomamefu.pdfIn PDF document text
- http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16136a5200d054---92113619743.pdfIn PDF document text
- http://magdrywall.com/project-new/christianbook/upload_images/file/7647855979.pdfIn PDF document text
- https://almuhja.com/ckfinder/userfiles/files/juxojotasikiwatitipo.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_off0000afae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFAE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c7c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7C0 | 15296 bytes |
SHA-256: c4f1cc2b1f2e4fab14023c6cf0edb3a3df2b81c51b21297e85f9b131b4ae9df2 |
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font_02_sfnt_off0000ee2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE2A | 10620 bytes |
SHA-256: 4001d7333e7dff3c98d3845d5a60263801f666150037383a181a895183a07c2b |
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