MALICIOUS
164
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. The document utilizes a link farm strategy, embedding numerous URLs that point to compromised WordPress upload directories and disposable hosting domains, likely to distribute further malware. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics strongly suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9923
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://medvor.ru/uplcv?utm_term=emerson+industrial+automation+commander+sk+manual
- http://tafgambiatours.com/userfiles/file/62616570094.pdf
- http://yilip.net/userData/board/file/92579198227.pdf
- http://uctodane.cz/UserFiles/File/powidolizavak.pdf
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/c0211a5557cac38ad208912b67aa4323/70179423092.pdf
- https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/27714943a15f758b1fada4f3c63ef23a/10260470851.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/c69fd761b0141fb38d835db8119d3e2b/punikug.pdf
- https://mvmdigital.gr/files/files/48421174800.pdf
- https://hartwellcook.com/wp-content/plugins/super-forms/uploads/php/files/df1d81e1cda564b0686c343039c932c2/gatew.pdf
- http://starkhigh1972.com/clients/d/dd/dd83d6d7846a033806cdb512e10d7d7c/File/85242163219.pdf
- http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160814263340e0---51915012420.pdf
- https://aterhesseg.com/up_image/file/25786942783.pdf
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607a9d8c95409---26204997148.pdf
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160b2c150dd787---60039552655.pdf
- http://bjaimama.com/data/upload/2021/06/file/202106120918567172.pdf
- https://psfund.org/public/uploads/files/cms_files/siwigap.pdf
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/44a1485914e45517433bece95e6dd9b8/widanowiposaredifudujave.pdf
- http://harekatmemuru.com/images/Media/files/83260024401.pdf
- https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/a4632657fbecadb087a38a6509280ee4/darejavunofubepulafedam.pdf
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/a9c8a77fb0a49572022e4bb07df158bc/45146568180.pdf
- http://castudio.eu/userfiles/files/14768466178.pdf
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608ed9e5d3b76---43601205918.pdf
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160871482e2a8c---5752748364.pdf
- https://daiichitravel.com/uploads/news_file/jumipinifurivipa.pdf
- https://asiahealthcaredentalcentre.com/ckfinder/userfiles/files/gukewuge.pdf
- http://africanhairbraidingsalon.com/userfiles/file/13499058125.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_off00011f02.bin9db88341e86c10d47949f2afd3c9bb392bfeb731f7f90420cfd7d7eaee01fc76 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F02 | 10704 bytes |
font_01_sfnt_off00013789.bin9a01387149719da9a7b95331ec9f849ef976b940bf455721e1c7c041b939f367 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13789 | 23860 bytes |
font_02_sfnt_off00016f0d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16F0D | 16792 bytes |
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