MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous URLs, many of which are part of link farms hosted on disposable domains or compromised CMS uploads, suggesting a phishing or malware distribution campaign. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this. Although no scripts were explicitly extracted, the PDF format itself can embed JavaScript, which is often used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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=retrieving+deleted+text+messages+android PDF link annotation
- http://lideparts.com/userfiles/file/1631958649.pdfIn PDF document text
- http://fsgpj.com/upfolder/e/files/20210913101135.pdfIn PDF document text
- https://braveathlete.net/geektic/files/55634067402.pdfIn PDF document text
- http://airfa.it/userfiles/file/lajisaga.pdfIn PDF document text
- https://dalilak1.com/userfiles/file/72732980748.pdfIn PDF document text
- http://agataklimowska.pl/userfiles/file/savoporaka.pdfIn PDF document text
- http://asu78.ru/userfiles/file/rivovodisiwonow.pdfIn PDF document text
- http://asesorgubernamental.com/images/file/fuwudapitodukukitusewaj.pdfIn PDF document text
- https://hinodecoder.com/userfiles/file/logesezosiwoxixawasune.pdfIn PDF document text
- https://preprodpcb.com/userfiles/files/23170474320.pdfIn PDF document text
- http://xn--9n2bn9mz3aba29g44r4o0a.kr/fckeditor/userfiles/image/wedoxikenudivemikevejaje.pdfIn PDF document text
- http://uniradioweb.info/userfiles/file/10979893559.pdfIn PDF document text
- http://biznesfishki.ru/files/userfiles/files/38075747915.pdfIn PDF document text
- http://villaturri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131664106e34---fipaf.pdfIn PDF document text
- http://fosterfreezesantarosa.com/uploads/files/91859644117.pdfIn PDF document text
- https://costarica4d.com/contents/files/25215411392.pdfIn PDF document text
- http://al-bandak.com/userfiles/file/13723421690.pdfIn PDF document text
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/ece49e563e488a7265a5bf2b225d3bd6/8479652929.pdfIn PDF document text
- https://fiscalonline.eu/app/webroot/files/userfiles/files/mefala.pdfIn PDF document text
- https://tucarrorentacar.co/ckfinder/userfiles/files/nemotepava.pdfIn PDF document text
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/d6ce7e11dba7de3c38f1368160ca0175/nafalewejabuzix.pdfIn PDF document text
- https://ashleymongolia.mn/uploads/files/93820352790.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_off0000b5a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5A7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cdbe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDBE | 10804 bytes |
SHA-256: cd7e2a54aa9af29524a5f4b0edd0bf9fd7a6643b4a8c7938d769ae249dc51b67 |
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font_02_sfnt_off0000e671.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE671 | 16300 bytes |
SHA-256: a4ed20a9725efa3b7ba8ca69a9e66f2d259a42c444b66103bf11c2b8d60004e6 |
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