MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal a link farm structure pointing to compromised WordPress uploads and disposable hosting, suggesting a phishing or malware distribution campaign. The embedded URLs, such as 'https://infrive.ru/uplcv?utm_term=donning+of+gown', are likely used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
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://infrive.ru/uplcv?utm_term=donning+of+gown
- https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/rpmtqolh1925pt7ju88jcs5p05/lifuv.pdf
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce3d1db8b6---87854841016.pdf
- https://abeess.com/userfiles/file/72601994422.pdf
- http://garmagostaran.com/Upload/file/gigopizon.pdf
- https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/5e132103254f7d14630f3db71b1fd542/zomusogosirup.pdf
- https://lightspec.ca/wp-content/plugins/super-forms/uploads/php/files/760f6e5eb51c30e601fc7563c0f18cf3/kikaxukevupopigisagofoza.pdf
- http://aviatechinform.ru/sadm_files/xofepiribo.pdf
- http://uppercanadatwocylinderclub.com/clients/877835/File/64891133911.pdf
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16071abd78c7d8---22350388406.pdf
- http://progfin.pl/userfiles/file/pusofotaxejabumeta.pdf
- http://cukiernia-waltar.pl/qcms/userfiles/file/begasugim.pdf
- http://veterinariogiardinelli.it/userfiles/files/92144138972.pdf
- http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/160871a346e0db---97445248248.pdf
- http://regmac.net/userfiles/files/97732580405.pdf
- http://msinternationalbeautypageant.com/clients/8/8c/8c0f0497d7166b07b5568c04be8084ca/File/vaziwoxipak.pdf
- http://oio.cn/uploadfiles/files/52203792916.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160aba0ad76d93---97229968186.pdf
- https://plentis.eu/ckfinder/userfiles/files/sefaker.pdf
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/b4c2d25fofuplco38v4kima6i9/futalokukosit.pdf
- https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/160772067ea2f2---74213099384.pdf
- http://fitnessklub-impuls.pl/uploads/assets/file/nevokafaguroxawur.pdf
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/255ad91b4068417dc39da79cd18cf4c1/35810280518.pdf
- http://yaqeen-eg.com/userfiles/file/muxawosapepozinujepip.pdf
- https://la-klamm.org/Files/files/35292689784.pdf
- http://spalovnachemolak.sk/userfiles/file/50463634604.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_off000192cf.bin89b11a2ed5bd4a1aabe2a308039be6aa341d49b0f111f1d47c583e3076e91ff7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x192CF | 16380 bytes |
font_01_sfnt_off0001bd6a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1BD6A | 16792 bytes |
font_02_sfnt_off0001d580.binf8c48fe6880f2dc7878acefd0e30951eeb35f48d99d56eb6b631a7b43e4f366b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1D580 | 9768 bytes |
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