MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was identified as malicious by a ML classifier and ClamAV, flagging it as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The document body is heavily obfuscated and unreadable, providing no direct content clues, but the heuristic firings strongly suggest a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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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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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://f2h63c2.ip4secure.net/upload/files/14362596110.pdf In PDF document text
- https://www.idd.no/ckfinder/userfiles/files/rilujakufoteturaguzaxipa.pdfIn PDF document text
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/qhs8ttiil59ku08ncvo94kc20d/mavobaxegu.pdfIn PDF document text
- https://familienbilstrup.dk/ckfinder/userfiles/files/71150245347.pdfIn PDF document text
- http://sinching.com/uploadpic/files/202109011743098148.pdfIn PDF document text
- https://s-serviss.lv/userfiles/file/nebidinajif.pdfIn PDF document text
- http://acril.ru/ufiles/files/kapivozalekizi.pdfIn PDF document text
- http://apisicul.com/userfiles/files/33427103087.pdfIn PDF document text
- http://change4best.ru/upload/file/jalevadupirexuv.pdfIn PDF document text
- https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/edbd3d26e6fd5fc97343884dd17f660b/wofujodubona.pdfIn PDF document text
- https://pierrelemagicien.com/userfiles/file/11162959943.pdfIn PDF document text
- https://kcharp.com/ckfinder/userfiles/files/18549196170.pdfIn PDF document text
- http://anhuifan.com/upload_fck/file/2021-9-8/20210908113656830775.pdfIn PDF document text
- http://changwontour.kr/FileData/ckfinder/files/20210914_DFF1EFE5BF81EC39.pdfIn PDF document text
- http://firewheels.pe/userfiles/file/29346698518.pdfIn PDF document text
- http://detaycopymatbaa.com/userfiles/file/tusufitagox.pdfIn PDF document text
- https://degardo.hollandpazsit.hu/ckfinder/userfiles/files/78879801543.pdfIn PDF document text
- https://ka-base.no/images_students/files/75753347204.pdfIn PDF document text
- http://africareview.in/userfiles/file/83521257156.pdfIn PDF document text
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613cc9be6116b---17512337124.pdfIn PDF document text
- http://foto-recepty.sk/images/fotky/jerurulopomewefatosisagi.pdfIn PDF document text
- http://bibrka-school.org.ua/ckfinder/userfiles/files/2654647654.pdfIn PDF document text
- https://jakspravnenapsa.cz/userfiles/file/fuzezesebodexojudiga.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=goku+season+1PDF 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_off000148c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x148C6 | 10048 bytes |
SHA-256: b42cded4eeca35337235fe107fdb9a6559d0a9f085d5e90ea6ee85875b99a729 |
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font_01_sfnt_off00015f57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15F57 | 17144 bytes |
SHA-256: ee4608777255bd0bff875017a639f8455a1d33ff4a48273aa5fb56c956fee505 |
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font_02_sfnt_off00018bf6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18BF6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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