MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a large number of external URIs, many of which point to compromised WordPress installations and disposable hosting, indicating a link farm designed for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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://synerhu.ru/uplcv?utm_term=literary+elements+of+creative+nonfiction
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085e95821469---79301055066.pdf
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609d2073dcc56---nobelutunasom.pdf
- https://eminencesolutions.in/resources/userfiles/file/77250695371.pdf
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a1da704d056---1976251420.pdf
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16086d1be9ee58---masorukapunomopoxa.pdf
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b83cc9c064e---duxivimeworotutizofipima.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/i4orvughbnkeq8ktu4v7pg8c60/tebugotazuteliruloxoxow.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607262c8b1503---67187093033.pdf
- https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/6858d1fd7f390222a7a79cf62e1aa557/73954400051.pdf
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/f00ca8b1594c8ee1cff2a2128224f605/bixabajodimexiguworux.pdf
- http://bestbuyfromindia.com/userfiles/file/3302021233.pdf
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609de658d6098---wiwigivibufugezonovemese.pdf
- https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/5b06568f105e3e6a7eb20b3e5f06f60f/70104303782.pdf
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606f05451327b---24220869081.pdf
- http://sbsinternationalschool.org/sbsisnew/userfiles/file/dejiboviga.pdf
- http://seabeachthailand.com/UserFiles/file/24396117102.pdf
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/1a00051bd52caf651083447de1a85778/tuzorawomovesuv.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/16091a389d7097---webubuwunoxifitonetigu.pdf
- http://www.jindatunnel.com/up_files/file/75518177861.pdf
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/lppp07ob15hir3aa0dt78tqj9h/53868345824.pdf
- https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/b17399a08232b1fff0898d62ccfa14b7/wofevabetiluf.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_off0000fc1e.bin035ecf8756dfbdb467ff5d46f0f525da0fd550bb187d875e9f59349d5302b4de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC1E | 17832 bytes |
font_01_sfnt_off000129ef.binbf7dba8d7eb7ebd9f58c9d163e58fc4edeb3d02d344e0c0cd749ed5e8376ab21 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129EF | 10632 bytes |
font_02_sfnt_off00014250.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14250 | 16792 bytes |
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