MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other domains, likely serving as a distribution point for phishing or malware. The presence of external URIs and compromised CMS upload links further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://philabc.ru/uplcv?utm_term=part+of+esl+crossword+clue PDF link annotation
- https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/839ed6ec21e6e0d52fce3223a0b70cfa/2947063162.pdfIn PDF document text
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/2645ffa541ce491daf4acad191687e1f/punerazetidinemito.pdfIn PDF document text
- https://slaterlighting.com/wp-content/plugins/super-forms/uploads/php/files/dcd80b8d843f6ca08a3f0c3775334344/69150590538.pdfIn PDF document text
- https://thietbidienmanhcuong.com/upload/files/vivikikuzukitaxax.pdfIn PDF document text
- https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/4dde0d67a5468251cb899f9ccd0c5fae/69550013641.pdfIn PDF document text
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608ea23705ff8---59459737121.pdfIn PDF document text
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b162b84ba4e---46649342793.pdfIn PDF document text
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/6qkbsvvc6gn09fs1o2lp4hh802/67111490939.pdfIn PDF document text
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/c4c5ad1fbce1a9c11e64c6e485da2196/kijepivirabunuwewiteliju.pdfIn PDF document text
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/b4lnusa9igdvgg8144qq79qe6c/sugivaxiguginawogodajer.pdfIn PDF document text
- https://pametnidom.hr/pametne_kuce/userfiles/file/56493658649.pdfIn PDF document text
- https://motelandratecuci.ro/userfiles/file/6409183573.pdfIn PDF document text
- https://coluer.ir/documents/file/84106505228.pdfIn PDF document text
- https://dimensioninteractive.com/WYSIWYGImage/file/97760448784.pdfIn PDF document text
- https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/2cfaa77483ed86c44f7297d91f07b399/23520382692.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In 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_off0000e8ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8EF | 4836 bytes |
SHA-256: 32d35771703c2dabd100a85c75560f54d2e877e97eb0611c38f54c37544b24f4 |
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font_01_sfnt_off0000f97c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF97C | 11296 bytes |
SHA-256: 0b7803021e1edb1df6c42d5441db917d2bd94eb1810d12dcbb71528fa47b7932 |
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font_02_sfnt_off00011f0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F0D | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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