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-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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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 http://ahxxzx.com/userfiles/202104/file/safudoweje.pdf In PDF document text
- http://xn--42-6kcdlkbomh7beggito5p.xn--p1ai/userfiles/file/24212092678.pdfIn PDF document text
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cf522239c0---7231464807.pdfIn PDF document text
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/16088f2b56aa85---44907642299.pdfIn PDF document text
- https://www.ideaklinik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c2eac017c2---gibupixokisadokajazupo.pdfIn PDF document text
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1609ef5fce961e---lewit.pdfIn PDF document text
- https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079eac13f60f---sodaduxirujewenat.pdfIn PDF document text
- http://stroisvias.ru/userfiles/file/debifabuvigemimovib.pdfIn PDF document text
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608bc99aeb855---wedunaragitu.pdfIn PDF document text
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160986174618ff---novezejukarewulunagise.pdfIn PDF document text
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/a8ac97203a07cf86191cd8afb5dfefdd/guforufitezimivabe.pdfIn PDF document text
- http://zzliuxue.com/upfile/file/%5C/62154552227.pdfIn PDF document text
- https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609cdaeb2fcee---nojorov.pdfIn PDF document text
- https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072884e4713e---suresisas.pdfIn PDF document text
- https://capitaleny.com/wp-content/plugins/super-forms/uploads/php/files/61a8d6657f2cbadc5da7b9b0e5dee19f/wobasasadusi.pdfIn PDF document text
- https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/6f298d8924fab2bf7fa2505b1c6673a0/59146307784.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=sigmakey+crack+without+box+free+download+2019PDF link annotation
- 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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d9cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9CD | 6308 bytes |
SHA-256: 21a3d08f7ad8bb8138184ee6aa7d7c486bef0454316ab3067e0737a6061c00d6 |
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font_01_sfnt_off0000ef3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF3F | 10824 bytes |
SHA-256: c4b146dc58d703d9edad656e3cb60831b3f5123f275b2159ae706a9930000a0b |
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