MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to compromised WordPress sites and other domains, suggesting a phishing or credential harvesting campaign. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this, as these are common tactics for distributing malicious links within documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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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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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://queure.ru/uplcv?utm_term=the+art+of+color+itten+pdf+download
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/bba074ad311e6cd27862824b45a4caa6/43183593179.pdf
- http://haileylusk.com/clients/e/e6/e6412a3df854040bfb282c4f37eddf02/File/tegufuke.pdf
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/18hm313u4ccg55uabch3s9e9bv/kokibefulokijipenufe.pdf
- http://alexandersorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/89504563338.pdf
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/0ctlrnhgor8m39pbbmun03aie0/muwibametu.pdf
- https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/9e8422d31f103504605e8a6c2afacef7/96164553419.pdf
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/93ce14c0b1c1775e94b2083f6b063949/bazotujuzizakuvo.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078ebc6c95a4---kewiga.pdf
- https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/jismu717kle2ni1nnsksmgs0pp/21055674571.pdf
- https://travelworld.ro/userfiles/file/77341049728.pdf
- http://hutergroup.de/userfiles/file/safavasumulikob.pdf
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/21e9457a19a28c38e5f41b01e7effd63/8473276867.pdf
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16080b6069b744---82949032953.pdf
- http://gayaarchi.com/userfiles/file/20210619045409.pdf
- https://bluetact.com/locktactyuma/userfiles/file/69840518808.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b6313e8452---lidojudekixivit.pdf
- http://modellszerviz.hu/userfiles/file/zimuki.pdf
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/g7q54i2016fqdashorf5n1uhr4/68029964518.pdf
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606eae001743b---famopixixuposufina.pdf
- https://mannerfeltdesignteam.se/ckfinder/userfiles/files/53976712206.pdf
- http://asja-doll.ru/userfiles/file/rugajesaripovala.pdf
- https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/160836b2b0135b---tegaluzonerelogipoxe.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_off0000fe1a.bin4c62dee0aa9b032678f497e043dd442d40d66862bae348a1460268839479f1fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE1A | 10596 bytes |
font_01_sfnt_off00011644.bin9487e0ed5be1e272b417e4fa9c01063917c0b32db59887cdc92c19448ab9174e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11644 | 17660 bytes |
font_02_sfnt_off00014436.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14436 | 16792 bytes |
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