MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it's a link farm on disposable hosting. The embedded URLs, such as 'https://crysiq.ru/uplcv?utm_term=retrieve+icloud+email', suggest a phishing lure. Although no scripts were explicitly extracted, the PDF structure and numerous external links point towards an attempt to redirect users to malicious sites, likely for credential harvesting or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.6878
Heuristics 4
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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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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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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=retrieve+icloud+email
- http://dison.cn/filespath/files/20210917120356.pdf
- http://lionsmarsala.it/userfiles/files/firiwowajugenos.pdf
- http://wych123.com/upload/files/vopenetem.pdf
- http://location-venise.com/italie_documents/files/jefasaxaw.pdf
- http://didaconcept.com/admin/fckeditor/file/fugunedova.pdf
- https://ku4ysk-9lgp4y.com/contents/files/14980674549.pdf
- http://gnox.vn/upload/files/sikar.pdf
- http://isleford.com/filespath/files/20210921235242.pdf
- http://www.wcd.com.tw/ezadmin/ckfinder/userfiles/files/zodufoposubavu.pdf
- https://12waktu.com/contents/files/48827441664.pdf
- http://teakdeck.pl/files/file/72913838025.pdf
- http://okna-stv.ru/userfiles/files/finizamikosozewi.pdf
- http://honeycontacts.com/uploades/userfiles/file/84867329879.pdf
- https://kolkatanagariksammelan.org/ckfinder/userfiles/files/90591524604.pdf
- http://maquinandoysubastando.com/dleyes/admin/fotos/file/wamutokulewex.pdf
- https://ventadeterrenosagricolas.com/userfiles/file/25192148947.pdf
- https://truckforceone.eu/upload/editor/file/22706757114.pdf
- https://aymexco.ro/ckfinder/userfiles/files/30305016760.pdf
- http://dblbtech.com/userfiles/file/974389822.pdf
- http://ijfbn.com/editor_up/pitisosopagifazubefuwagif.pdf
- https://tanhaithanhvalves.com/quangcao/admin/file/nawolewunolobuwaze.pdf
- https://dom4m.lv/userfiles/files/rowevomibogorijenegude.pdf
- https://ehlibeytalimleri.com/resimler/files/98968839741.pdf
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b47e.bin4d00a0c7cf8232dfafe9b4605ef8ed8f6760f0fae6f72f36f56c0a65f97947f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB47E | 18256 bytes |
font_01_sfnt_off0000e349.bin36768cabd9252031ef574a593945c7c58e6296e8353ec4f58a1589b14dbd36c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE349 | 10468 bytes |
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