MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting it functions as a link farm to lure users to potentially harmful content. The presence of these links and the overall structure align with a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://laborke.ru/uplcv?utm_term=pokemon+gps+spoof+2020 PDF link annotation
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/vsc1johgt0gni2r1p4g93kio73/34090977136.pdfIn PDF document text
- http://guowangcable.com/d/files/lozen.pdfIn PDF document text
- http://www.srijonihealinghome.com/fckimages/file/32812840238.pdfIn PDF document text
- https://globalybm.com/ckfinder/userfiles/files/1631833298.pdfIn PDF document text
- https://mygrind.ie/userfiles/file/turorupebetoz.pdfIn PDF document text
- http://klemanpince.hu/files/file/40677727741.pdfIn PDF document text
- http://oecschool.com/userfiles/file/33948069016.pdfIn PDF document text
- http://daydreamspin.com/userfiles/file/54440696814.pdfIn PDF document text
- http://law885995.com/upload/fckimages/file/43707641372.pdfIn PDF document text
- http://wecans.net/_UploadFile/Images/file/wilapivapofazojobu.pdfIn PDF document text
- http://nokianhakkablue.ru/ckfinder/userfiles/files/71520704859.pdfIn PDF document text
- http://tuanlongland.com/upload/files/kupavejefali.pdfIn PDF document text
- https://hondaotohaiphong.vn/upload/files/83807983162.pdfIn PDF document text
- https://tootooair.com/FileData/ckfinder/files/20210906_CD6943F140202451.pdfIn PDF document text
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/28f7a75245dd0aae69a8db2e179f6a0e/labetivodemidigefu.pdfIn PDF document text
- https://anakmeong.com/contents/files/xigemuladadu.pdfIn PDF document text
- http://medica-eg.com/userfiles/file/xavipowafuz.pdfIn PDF document text
- http://mexxeopaint.com/upload/files/gaxoweja.pdfIn PDF document text
- http://nenayu.com/filespath/files/20210915172814.pdfIn PDF document text
- http://chapaconoticias.com/assets/ckfinder/core/connector/php/uploads/files/74320798604.pdfIn PDF document text
- https://larrialdiak.es/files/galeria/files/lefovozagipos.pdfIn PDF document text
- https://limsurempat.com/contents/files/52867107645.pdfIn PDF document text
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/f5af1d5ad5af16e4dd0b117a34b07333/762884244.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c33c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC33C | 17968 bytes |
SHA-256: 804bd79607729542174939e1b61d565e0f7ea70a34a2e728296f88150891efe3 |
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font_01_sfnt_off0000f251.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF251 | 10540 bytes |
SHA-256: 46b7998b774afb22a5a12110c1218ebd9674620a3ebd5261a6a196cdf267feaf |
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font_02_sfnt_off00010a64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A64 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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