MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and disposable hosting domains. These links likely lead to phishing pages or further malware downloads, consistent with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://coretry.ru/uplcv?utm_term=reading+for+meaning+statements
- https://psychologgia.pl/Upload/file/ruxifisoruraw.pdf
- https://activepymes.com/pub/file/lujatefufazitekelavaki.pdf
- http://bangtaisay.com/uploads/userfiles/file/69149356445.pdf
- http://phutungtdc.com/upload/files/sekuloliti.pdf
- http://avision-italia.com/userfiles/files/20421328103.pdf
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/c65ek079r0iottapg24k9n8vj1/80958705265.pdf
- http://usaoxin.com/userfiles/2021-6/file/38524173905.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085d08e700e7---xadixuxoworekatiki.pdf
- http://win-sonic.com/kida2018/ck_imgs/files/rizunajibo.pdf
- https://an-professional.ru/img/files/file/34664340900.pdf
- http://maychamsocda.vn/images/userfiles/file/karasago.pdf
- https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16097a85be7fe2---miwikudijed.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/vqq1469klv5mvljf3eds1dv833/pixujemumexob.pdf
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c58b2ab33af---fidujaga.pdf
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608df8ceda7b5---91064174266.pdf
- http://whs1963.com/clients/7/75/758a827d59fb1c2827eec60421ffdc22/File/xukivifawibolit.pdf
- https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/16073d376de94e---31727717109.pdf
- https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607def04038f2---13640389357.pdf
- http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16088a25797567---6768139574.pdf
- http://hndgyl.com/v15/Upload/file/202163099259696.pdf
- https://rkdestate.com/userfiles/file/sekutu.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_off00013d55.bin04436790a83bf3dadafbdf4abd59f9f799b7c3266fd2ed5ba8400f06bd661b1e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D55 | 10696 bytes |
font_01_sfnt_off000155a6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x155A6 | 16792 bytes |
font_02_sfnt_off00016db8.bin4e7b2cc87e72aa6124fea0696872756be5b97d568b4e483792356a072377302c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16DB8 | 17808 bytes |
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