MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, a common technique for executing malicious code within PDFs. It also features a link farm pointing to multiple distinct hosts, many of which appear to be compromised WordPress sites. These links likely serve as a lure or a redirect mechanism to deliver a secondary payload or phish for credentials. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/99fd98c853979eae1ff9a59ffb29157b/75795200150.pdf
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bd672ae493f---48241708734.pdf
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1606d87f90e50f---79261721448.pdf
- http://digitalpolicycouncil.com/imagenes/file/92031485786.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4b15c822f7---femisuwuvenik.pdf
- https://luathoanghuy.com/uploads/files/53566245570.pdf
- https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/91d188cdf2e98ee2c06b239446f01b28/2359371044.pdf
- https://lightspec.ca/wp-content/plugins/super-forms/uploads/php/files/247856e5d059d838655dc90a26b80c8d/45806272709.pdf
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160753f60dce9b---58557497263.pdf
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/e7cd805e1f3c20a51b3db02405a759a7/61338392631.pdf
- https://luyenthitoeic.info/userfiles/file/59014164086.pdf
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/160998e6138578---tiwevepurilifofipu.pdf
- http://www.oneworldkarate.com/fckeditorimages/userfiles/file/wivowazigaselenedonidekow.pdf
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606feab2bd9f8---menebum.pdf
- http://amandatour.ru/js/ckfinder/userfiles/files/lofoxuxebujujulupug.pdf
- http://ac-kenigsberg.ru/files/file/guzasaremuduteboxapuz.pdf
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f487a11ed3---4418507109.pdf
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160982b85a2039---82712808514.pdf
- http://exclusivelimoservice.com/ckfinder/userfiles/files/84030106391.pdf
- http://dighakanchaninternational.com/FCKeditor/file/xerega.pdf
- http://deepakbatteries.com/uploads/file/52023229792.pdf
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/0c7d2317fdde8da031e805d7d806a51f/23538473212.pdf
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160866152b8861---70351740830.pdf
- http://live-lessons.net/lcj/web/uploads/assets/file/96203263932.pdf
- https://stiff.pl/ckfinder/userfiles/files/82900503725.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=help+for+the+needy+crossword+clue
- 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_off0000c080.bind82374f0645cf67400c1188f4e7b62fe16d7f0045ecc7bde7cb6ce14fabe7dc2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC080 | 10756 bytes |
font_01_sfnt_off0000d93e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD93E | 16792 bytes |
font_02_sfnt_off0000f150.bin5a3c7b21f8326ed501782cc69d948c0bb71a0ebf65b2ef73bdf366829668eba3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF150 | 16664 bytes |
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