MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=carrom+friends+hack+download PDF link annotation
- https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/csocqda4rgjiiahdtqrc3a1mu4/poxogebelatuzatufu.pdfIn PDF document text
- https://prtl.pl/userfiles/file/38687347925.pdfIn PDF document text
- http://be1971.com/clients/a/a1/a19be2fc4cf8b198b52f296748481ce5/File/60021574154.pdfIn PDF document text
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b57e0e41a67---napiredozolu.pdfIn PDF document text
- https://viboot.com/ckfinder/userfiles/files/zifaradebatonatase.pdfIn PDF document text
- http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160be51248ca80---25489892223.pdfIn PDF document text
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1607faea1bed15---32694191200.pdfIn PDF document text
- https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/bffudp2gl63760n4p1uk1lpcu7/gefef.pdfIn PDF document text
- https://djennebeads.com/nbloom/fckuploads/file/72247110523.pdfIn PDF document text
- https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/a60gk0l4n1p196sg7sn3u5ritq/fanepebalafuwu.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609fee7883522---50344291990.pdfIn PDF document text
- https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/d159dba06949dc93bac72838ba93dd1f/48879828458.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/9dd7e1bd0b3d2ebc71c7ec1d5c5c885b/25487396996.pdfIn PDF document text
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/c4bf511e963588aec04fa9a9338cbece/78006206212.pdfIn PDF document text
- http://szakkepzosiklos.hu/upload/file/vipog.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e4fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4FE | 5324 bytes |
SHA-256: 883c8858b042503d1f3e9b6cdf04fb04ae4e22c8b05f402032331d68bf4b383f |
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font_01_sfnt_off0000f6f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6F7 | 1936 bytes |
SHA-256: 84daf345e21b08075a6e329eeacb0a13a0447ddcc3efc64e98a9a4ab9c6a9d9d |
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font_02_sfnt_off00010038.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10038 | 11352 bytes |
SHA-256: 3d7155d42f0f0e756f3c398126e9d01265115a13dc3d99e1ba6c190a54a4de2b |
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