MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Numerous heuristics point to the PDF acting as a link farm, directing users to various external websites, some of which are hosted on compromised CMS platforms. The presence of 'utm_term' parameters in some URLs suggests a phishing or spamming campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://wastran.ru/uplcv?utm_term=free+super+z+vpn+mod+apk PDF link annotation
- http://sloplast.com/userfiles/files/kevib.pdfIn PDF document text
- https://repare-ton-smartphone.com/userfiles/file/zujuj.pdfIn PDF document text
- https://adesso-moosburg.de/images/file/pimixanujigakoxeted.pdfIn PDF document text
- http://arucax.am/user_images/file/gedegoruvexe.pdfIn PDF document text
- http://matrix-corporation.com/upfiles/editor/files/65029793942.pdfIn PDF document text
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/16132a674d21cb---lagekijugibasukoz.pdfIn PDF document text
- https://uleshuzatabc.hu/files/file/wepetum.pdfIn PDF document text
- http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614c4115c61a6---zifomi.pdfIn PDF document text
- http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/sadovosojarufigaj.pdfIn PDF document text
- http://renknh.com/ckupload/files/58170357794.pdfIn PDF document text
- https://robert-zauer.cz/userfiles/file/gulepamobijobeto.pdfIn PDF document text
- http://ganteltechnology.com/system/userfiles/file/27796304444.pdfIn PDF document text
- http://lianbang123.com/uploads/files/202109100103014351.pdfIn PDF document text
- https://xanbiente.de/userfiles/file/15390829915.pdfIn PDF document text
- https://ekselantechnology.solutions/ckfinder/userfiles/files/99599510215.pdfIn PDF document text
- https://amatnieks.lv/pictures/image/37546641229.pdfIn PDF document text
- https://dewalt-naradi.cz/media/upload/editor/file/31272406317.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137ba997b93f---kegelefobozez.pdfIn PDF document text
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/161421a64de5f9---nofamikikugu.pdfIn PDF document text
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/161476ddb9aa47---25694061837.pdfIn PDF document text
- https://vico-real-estate.com/ckfinder/userfiles/files/buxujotudigolokim.pdfIn PDF document text
- http://zs.tom.ru/jsplugins/ckfinder/userfiles/files/66764378017.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_off0000b057.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB057 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c86e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC86E | 10612 bytes |
SHA-256: 9d0fe8323ac5c1bf60a2fac8c47ee9c3328e6d0bd76c799a4790dccac21d4ce3 |
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font_02_sfnt_off0000e0b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0B3 | 16468 bytes |
SHA-256: f09ca269d0461757f38ad9673247a51bf74ec082595d0d5a79a8bc5aaf210ad8 |
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