MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, suggesting a link farm used for phishing or malware distribution. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards an attack pattern involving redirection to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://crysiq.ru/uplcv?utm_term=download+maps+for+minecraft+apk PDF link annotation
- https://birudongker.com/contents/files/2121926796.pdfIn PDF document text
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/5edc68062f49878ac99a978a3eb5279d/42648270678.pdfIn PDF document text
- https://worldcastlive.com/userfiles/file/fizobenobelu.pdfIn PDF document text
- https://sinarlangit1.com/contents/files/kukidiwuro.pdfIn PDF document text
- http://hanilkwanla.com/uploads/files/3272700716.pdfIn PDF document text
- http://esoftland.com/userfiles/file/vutukuv.pdfIn PDF document text
- http://cocoon-source-harmonie.fr/public/file/20911025211.pdfIn PDF document text
- https://kaparatt.com/images/File/358450912.pdfIn PDF document text
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132dbe00b605---41366427758.pdfIn PDF document text
- http://xn--90aoaidn.xn--p1ai/ckfinder/userfiles/files/51855006034.pdfIn PDF document text
- https://thehouseproduction.net/file/kuxorebe.pdfIn PDF document text
- https://andhimazhai.com/images/files/35966961971.pdfIn PDF document text
- https://eric-parnes.com/ckfinder/userfiles/files/wemasijupevikaruzuviz.pdfIn PDF document text
- http://np-laser.com/upload_fck/file/2021-9-24/20210924065326622242.pdfIn PDF document text
- http://topflexsports.com/uploads/84581630849.pdfIn PDF document text
- http://celeb.huh.hu/UserFiles/File/midafazamozaniwunedarad.pdfIn PDF document text
- https://leosservices.com/userfiles/file/72523596074.pdfIn PDF document text
- http://xecuoihuyhoang.com/uploads/userfiles/file/7500681602.pdfIn PDF document text
- https://hyosungulf.com/uploads/file/ruriposimupek.pdfIn PDF document text
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613430c83395a---wuliwadaboxigemivuvala.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_off0000ae21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE21 | 15264 bytes |
SHA-256: 4a1c9e2b4cb6051ce2ddd7c81ff241ff9f19c7f0b509dc2cd4526574c70d976c |
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font_01_sfnt_off0000d45f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD45F | 10960 bytes |
SHA-256: 8fea009cf64585dd87f7b111c6c87672c9648b950f455567f457142909f7c995 |
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font_02_sfnt_off0000edd1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDD1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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