MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains numerous external URIs, including one that appears to be a redirector with UTM parameters, suggesting an attempt to lure users to potentially malicious websites. The PDF structure and embedded links indicate a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
Heuristics 5
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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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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://krisoc.ru/uplcv?utm_term=good+games+for+windows+7 PDF link annotation
- http://ledins.lv/cms/file/77709275080.pdfIn PDF document text
- https://www.cdsale.org.au/application/third_party/ckfinder/userfiles/files/worojujuze.pdfIn PDF document text
- https://rpdev.org/ckfinder/userfiles/files/xuzemivexupusozusilidodov.pdfIn PDF document text
- http://pressvaluation.net/FCKeditor/editor/filemanager/connectors/userfiles/file/34071780036.pdfIn PDF document text
- https://buonoantonio.it/userfiles/file/17933852761.pdfIn PDF document text
- http://saeronbio.com/userData/board/file/vodugu.pdfIn PDF document text
- http://asiancfea.org/userfiles/file/79292154209.pdfIn PDF document text
- http://knuhpharm.kr/userfiles/file/20210911210109.pdfIn PDF document text
- https://ferado.vn/userfiles/file/41722525162.pdfIn PDF document text
- http://www.ciesol.com/ckfinder/userfiles/files/pejunotida.pdfIn PDF document text
- http://goteneplast.se/files/images/file/pubatavobejijoposaba.pdfIn PDF document text
- http://first-group.kr/ckupload/files/88161802678.pdfIn PDF document text
- https://pt2-turbo-j3t.com/contents/files/42619048687.pdfIn PDF document text
- https://capitalsyndic.com/userfiles/file/75147171475.pdfIn PDF document text
- http://gaytonfa.com/upload/files/44848379440.pdfIn PDF document text
- https://giasidaily.com/uploads/userfiles/file/zixufegawanuduwujix.pdfIn PDF document text
- http://ieeepes-thailand.org/app/webroot/files/files/5519501456.pdfIn PDF document text
- http://the-bom.kr/upfile/files/budebutezulipugifigosizeg.pdfIn PDF document text
- http://kraski-chernila.ru/resources/file/17736108993.pdfIn PDF document text
- http://inistor.com/ufiles/files/27190855811.pdfIn PDF document text
- https://v-rshine.com/upload/images/files/30593594291.pdfIn PDF document text
- https://geloracinta.com/contents/files/71804952340.pdfIn PDF document text
- http://psychanalyste-gard.fr/ckfinder/userfiles/files/ririturawizoberowaveza.pdfIn PDF document text
- https://firsatoyun.com/calisma2/files/uploads/29519596566.pdfIn PDF document text
- http://sys-svinding.dk/userfiles/file/xinetepov.pdfIn PDF document text
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/161403d8342ee4---molibekenurug.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_off0000b1f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1F1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ca03.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA03 | 14936 bytes |
SHA-256: 6494cfdde16d261e18c84224a8e9506e69e4c09a49fe2e3c8522b6d22ea28ab2 |
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font_02_sfnt_off0000ef8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF8A | 10728 bytes |
SHA-256: 2d5117aea4bcc198c87ea99777497911c066fe9375059a272a28308f81c0c7e8 |
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