MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links to external sites, many of which appear to be part of a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to open a password-protected archive, a common tactic to bypass security scanners. ClamAV detection and ML classification further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://chcial.ru/uplcv?utm_term=sound+fx+apk PDF link annotation
- http://tecs4.com/intranet/ckfinder/userfiles/files/sumema.pdfIn PDF document text
- https://pomtco.com/technical/files/file/jigidavitaruvek.pdfIn PDF document text
- http://futurepoolandspa.com/ckfinder/userfiles/files/pigezinuwabimogilobi.pdfIn PDF document text
- https://psfund.org/public/uploads/files/cms_files/gigukapowabewonazi.pdfIn PDF document text
- http://paraleumarian.ro/app/webroot/files/userfiles/files/83126924072.pdfIn PDF document text
- http://fcraregistration.com/UploadedData/file/3852005389.pdfIn PDF document text
- https://ptogel2.com/contents/files/61097382100.pdfIn PDF document text
- https://holocaustresearch.pl/nowy/photo/file/mikonup.pdfIn PDF document text
- http://nenkin-t.com/upload_img/ck/files/18730202775.pdfIn PDF document text
- http://lamexmarket.com/uploads/files/fivefupavas.pdfIn PDF document text
- http://rgn2u.com/userfiles/files/86440155912.pdfIn PDF document text
- https://tefen67.com/userfiles/files/49055383595.pdfIn PDF document text
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/91heguh71c2cddoiri1tnjg7um/xuvijujamolijagufuje.pdfIn PDF document text
- http://dnt-mayak.ru/content/File/84018673799.pdfIn PDF document text
- http://brenno-tojestto.pl/userfiles/file/pofana.pdfIn PDF document text
- http://casavacanzesanvito.eu/userfiles/files/56171975577.pdfIn PDF document text
- http://jinistudy.com/_UploadFile/Images/file/dufubazas.pdfIn PDF document text
- http://edukoc.net/userData/ebizro_board/file/8108485258.pdfIn PDF document text
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/cee6943dfe786fbdd56e8dfceeaaa0a0/98891045156.pdfIn PDF document text
- http://modern-pro.ru/files/file/58388054848.pdfIn PDF document text
- https://showdetango.com/bafa/userfiles/file/rodovuxipepuwaxoruda.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141d34f1c984---zetagagulafe.pdfIn PDF document text
- http://siamsnail.com/media/userfiles/files/2187410062.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_off0000d11c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD11C | 10224 bytes |
SHA-256: b03f6fc5b14b1552476275e13a065b04a72e35a6de69b6655d6fcfa4a02f1a45 |
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font_01_sfnt_off0000e832.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE832 | 19132 bytes |
SHA-256: 251546f528ee056651754392eb3067e02bf14cca083a78bfaa32a0f583199d94 |
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font_02_sfnt_off00011a5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A5A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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