MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to a mix of disposable hosting and compromised WordPress sites, suggesting a phishing or credential harvesting campaign. The heuristic firings related to PDF link farms and compromised CMS uploads further support this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://catamma.ru/uplcv?utm_term=use+office+365+account+to+log+into+windows+10 PDF link annotation
- https://ducthai.vn/userfiles/file/32169555946.pdfIn PDF document text
- http://crystal-lamp.ru/uploads/files/39872058536.pdfIn PDF document text
- http://pazarziraat.com/userfiles/file/kumewanonalomojux.pdfIn PDF document text
- http://afghansolar.com/userfiles/file/pizuwovugokatanugitena.pdfIn PDF document text
- http://erodiertechnik-wenzel.de/userfiles/file/lugavu.pdfIn PDF document text
- https://groupekheidri.com/ckfinder/userfiles/files/19630189915.pdfIn PDF document text
- http://mrs724.ir/basefile/drtiketcom/files/silupudejabikugugugafesi.pdfIn PDF document text
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/161406be01c538---11064997364.pdfIn PDF document text
- http://studiomontironi.eu/userfiles/files/lajasikupipodadik.pdfIn PDF document text
- https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16135cb5c6892e---66634840471.pdfIn PDF document text
- https://cherrychile.cl/cherry/uploads/contenido/files/tozozorin.pdfIn PDF document text
- http://ruresept.ru/files/file/ziroduzirujapagovubati.pdfIn PDF document text
- http://innersolutions-uk.com/file/63263773357.pdfIn PDF document text
- http://dalnoboy.net/data/filestorage/upload/files/mibakij.pdfIn PDF document text
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/16139607b2d77c---66021768481.pdfIn PDF document text
- https://esperanzadeavila.com/fotos/file/79937424620.pdfIn PDF document text
- https://casalindasbakery.com/ckfinder/userfiles/files/39337447696.pdfIn PDF document text
- http://soupworld.de/upload/file/rokaxejuwirirufovuga.pdfIn PDF document text
- https://cyc-catering.pe/disac/userfiles/file/79193301605.pdfIn PDF document text
- https://tannhatviet.vn/upload/files/dezexorabevikixirevakomes.pdfIn PDF document text
- http://progfin.pl/userfiles/file/dipoputuxuwo.pdfIn PDF document text
- http://ks-system.co.uk/ckfinder/userfiles/files/fiwunaxafirukiruxabe.pdfIn PDF document text
- http://nct-vn.com/userfiles/file/sijuwopobuxevemij.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_off0000d395.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD395 | 11392 bytes |
SHA-256: c43b1cafeb89e482a8d4c4282a73ad204cffd398d0ad8382545efe174ba43a82 |
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font_01_sfnt_off0000ee91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE91 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000106a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106A3 | 17688 bytes |
SHA-256: f020813e5483e00c76adfa84d72732ebcfced90c90936e641826c0d7652bd85e |
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