MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple disposable hosts, a common tactic for distributing malware. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to download a password-protected archive, a method to bypass gateway scanning. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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 http://udmvdpo.ru/images/files/siromamugodag.pdf In PDF document text
- http://monarchiaerembolt.hu/tmp/xaradijiza.pdfIn PDF document text
- http://bfcy88.com/uploads/files/35758037502.pdfIn PDF document text
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/2d959832325ed081f771696c81ba7e25/56434195873.pdfIn PDF document text
- http://camel-republic.com/media/userfiles/files/25481068131.pdfIn PDF document text
- http://fw-simple.com/uploads/files/20282439820.pdfIn PDF document text
- http://rld-carbon.ru/file/nafejatamizidimujabupubu.pdfIn PDF document text
- http://ldksolar-officialliquidation.com/userfiles/files/lojak.pdfIn PDF document text
- http://geredekombiservisi.com/userfiles/file/wixubipefanulanobepas.pdfIn PDF document text
- http://tinhdauvietnam.vn/upload/files/20924891848.pdfIn PDF document text
- https://ccaquebec.com/userupload/files/49256900816.pdfIn PDF document text
- https://fminterativa.net/cms/plugins/ckfinder/userfiles/files/47549401795.pdfIn PDF document text
- http://monticellotownship.org/userfiles/file/sadurebejelejef.pdfIn PDF document text
- http://hrampetraipavlavosstanovlenie.ru/content/images/user/file/penazutijusenoxoje.pdfIn PDF document text
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fc0772ebd6---6782620952.pdfIn PDF document text
- http://comlark.ru/userfiles/files/42908384843.pdfIn PDF document text
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e47e6876ee---jufubewojotozotikexur.pdfIn PDF document text
- http://radiopoint.cz/userfiles/file/saregakijozatituxijo.pdfIn PDF document text
- http://vstarmp.cn/upload/files/20210909_121127.pdfIn PDF document text
- https://fitness-sport.it/userfiles/file/70202451056.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=recover+android+pattern+lockPDF link annotation
- 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_off0000cb30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB30 | 10544 bytes |
SHA-256: 3af162ec17efd9667ac517b9463a0b5d064a2d6a671c935103207ada8909c1f1 |
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font_01_sfnt_off0000e352.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE352 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fb64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB64 | 17072 bytes |
SHA-256: 4fdfb10c1ddf86b014c089947c971a3abf7e92580bbf823f0751287630df7d1a |
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