MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that function as a link farm, directing users to potentially malicious content. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may be intended to trick users into providing passwords for encrypted archives, a common tactic to bypass security scanning. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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 https://philabc.ru/uplcv?utm_term=resident+evil+4+download+android+mobile+apk PDF link annotation
- http://thestarbusan.com/FileData/ckfinder/files/20210914_0205813DC7F6BCEE.pdfIn PDF document text
- http://sibaco.ru/ckfinder/userfiles/files/bovefugazedezovaxeza.pdfIn PDF document text
- https://biocenfis.es/uploads/assets/file/dapoberemominibugiwo.pdfIn PDF document text
- http://free-note.kr/files/fckeditor/file/19494167706133d2b534b91.pdfIn PDF document text
- http://zzps.pl/userfiles/file/34928228316.pdfIn PDF document text
- http://kientrucphatloc.com/upload/files/fudoge.pdfIn PDF document text
- https://millersexpress.com/userfiles/file/tokepowifon.pdfIn PDF document text
- http://bellamy.tw/uploads/files/202109160624154960.pdfIn PDF document text
- http://bbfederico2.net/userfiles/file/gusaduvamewevugowijegix.pdfIn PDF document text
- http://probeg2000.ru/files/userfiles/files/10928357600.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161323a77cc731---62141256645.pdfIn PDF document text
- http://colleges-in-tamilnadu.com/FCKeditor/userfiles/file/pokamuwaxevipefa.pdfIn PDF document text
- https://treasurehunterdetectors.solar-ovens.net/ckfinder/userfiles/files/kodimajerisufipufevunim.pdfIn PDF document text
- http://n2nnetworks.com/files/others/befokegulusolesig.pdfIn PDF document text
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131d743736f8---24942692525.pdfIn PDF document text
- http://daindnc.com/fckeditor/userfiles/file/87916137853.pdfIn PDF document text
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/b0joiuq3g4bm8hsbrdhtk9flt7/gidodutepuvowisefulifeki.pdfIn PDF document text
- https://www.habitat-morvan.fr/ckfinder/userfiles/files/78493417433.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_off0000ca96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA96 | 19452 bytes |
SHA-256: 0cfdffdd0d6a0c031d3806f20b5bc3183b23f0c0896c0247f3a13b4f45308bce |
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font_01_sfnt_off0000fdf7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDF7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001160e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1160E | 11060 bytes |
SHA-256: 45288e94caf65168b7f331012ada5076eed076a5e1bc73f78869c89b96b75d0b |
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