MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains numerous embedded URLs that point to compromised WordPress sites and disposable hosting, suggesting it functions as a link farm. These links likely lead to phishing pages or further malware downloads, aligning with the characteristics of a malicious PDF dropper.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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=how+to+cook+something+in+minecraft
- http://strefa-fitness.pl//fckeditor/editor/filemanager/connectors/phpplikifile/lokepumur.pdf
- http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/cb61d035d4c14a657af8b528b27162cb/99539627239.pdf
- https://www.demetagras.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081459aecff2---48169071325.pdf
- http://chnli.tw/CKEdit/upload/files/bapojibi.pdf
- https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/4586b641be7337f77cc34045d27fca31/biniw.pdf
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085b5ecc1494---davugezatozexubifaz.pdf
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/j667pqojc24fssp4edo6p26lip/zasumijojuralunavusobifer.pdf
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0d6a67579---duwuvurawomi.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607e8e6831e7a---fifegejat.pdf
- http://qtjdb.com/UploadFile/2021/05/12/file/20210512_221813_127.pdf
- http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/bi1e0nfbqs0uuafupct582u5k7/61849798666.pdf
- http://citra.cl/userfiles/file/26255412469.pdf
- http://goodtraefarm.com/ckupload/files/leguluwevuwujatamod.pdf
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c3a54e3314e---1655989030.pdf
- http://nadiadsa.org/userfiles/file/8317020463.pdf
- https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/94b4e75e977a61305c78164d0fe97e68/49981640868.pdf
- http://vogiantinhmach.com/media/ftp/file/wifovuzenetoniliwab.pdf
- https://bookatowncar.com/userfiles/file/xepibavoj.pdf
- http://cateringkieuan.com/uploads/userfiles/file/66397245507.pdf
- http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e9010c906e---jubumuwefefo.pdf
- http://ecovn.vn/uploads/news_file/rikebavo.pdf
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b8c207edbec---joselarepa.pdf
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c0cce52d28d---38467847329.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_off0000ecea.binba73306e57bd0ab0703d5d8e52ee83683db797c4e5bf93845588ac9821ae50e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECEA | 10908 bytes |
font_01_sfnt_off00010605.bin4d8bdf2e1c906b1ee0dea760d22108bbd0f495ea34e375fb7b2f8a3aadb641fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10605 | 18028 bytes |
font_02_sfnt_off00013554.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13554 | 16792 bytes |
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