MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress uploads and disposable hosting, suggesting it's designed to redirect users to malicious sites. The embedded URLs, such as 'https://infrive.ru/uplcv?utm_term=neutron+is+discovered+by', likely serve as part of this redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9928
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://infrive.ru/uplcv?utm_term=neutron+is+discovered+by
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9e2c3ca56e---vexarok.pdf
- http://amctop.com/board_data/editor_img/file/202105100252.pdf
- http://appletechsolutions.com/userfiles/file/83468600894.pdf
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/midiac1ftqbhm8cshl6d6appuq/gavuvukapujuruzefinami.pdf
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160c4eccd976b0---gotovibeguzewerorasoxobaz.pdf
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1608b016cda96f---22861404198.pdf
- https://bursakaynak.com/userfiles/file/52717949320.pdf
- https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/07be7abe94697eeea41fd380ba10e3e5/fugawuxubowo.pdf
- https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/5m09refrt87j2gq8aad7bnvo00/gawokinalub.pdf
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609a80a109f2b---kasixalav.pdf
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a63e728c93a---27028120122.pdf
- http://fsoa.cn/userfiles/file/54964889655.pdf
- https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/2fcf2b8197e948d1e5a6eb7ae247f159/rapudelum.pdf
- http://fresh-j.info/images/uploadedimages/file/jukuvabom.pdf
- https://kogan-photo.ru/wp-content/plugins/super-forms/uploads/php/files/d5dcc0010f1e297da2461559b098f374/84154519.pdf
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607231a9719ec---xuzav.pdf
- http://statewideroadservices.com/clients/879378/File/18942756234.pdf
- https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/f6ccebfb5866d17a7fc67f40b834d527/61862427406.pdf
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608042edc92af---72637696590.pdf
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/04c60c0ab877d6be318f6e0860c939f0/kaboruroridepatakugoro.pdf
- http://videoacceso.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7913510856---94298084921.pdf
- http://curry-box-deluxe.de/userfiles/file/55117692070.pdf
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/16093d15943a22---diwatesaroduk.pdf
- http://veribase.com/E/file/65350903562.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_off000184e9.bineffa8d5b97ac52c78731b8436ed8ad02136cfd81fb31161077545ec039f6b8a5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x184E9 | 10552 bytes |
font_01_sfnt_off00019d26.bin9a9f24dcc65a379ddd1b801aaff976a78f02bbf9b318a2a67dc4605836a785df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19D26 | 19668 bytes |
font_02_sfnt_off0001cff4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CFF4 | 16792 bytes |
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