MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1071.001 Web Protocols
The PDF contains numerous links to external sites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm used for phishing or malware distribution. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to open a password-protected archive, a common tactic to evade initial security scans. The 'SE_MFA_LURE' heuristic further suggests a credential harvesting attempt, possibly by mimicking a multi-factor authentication prompt. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
Heuristics 8
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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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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 http://wib24-admin.de/uploads/file/nowat.pdf
- https://dynasty888.com/image/files/20210618_211638.pdf
- https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b1832fd8e06---21731347395.pdf
- https://doosradashak.in/ci/userfiles/files/9962600055.pdf
- http://healhumanity.foundation/userfiles/file/jatonujilo.pdf
- https://bancodevida.com/bancodevida/admin/images/image/file/49653441279.pdf
- https://pilot-nav.com/ckfinder/userfiles/files/32529160253.pdf
- http://tiszaikaland.hu/upload/file/jovavodadax.pdf
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/tfcctohfhk4e567h6ti3kv4nj2/vegovemikotogo.pdf
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/2c45f56203b0118339b5469b993b7260/lobokepikis.pdf
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082c61d6b534---bavidukajimanenokij.pdf
- http://proxkimya.com/resimler/files/36372794962.pdf
- https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/1e77f2510f18433d06fd28231774dc99/21801796980.pdf
- http://dienlanhtruongson.com/upload/files/simejedoxabek.pdf
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/e53a2c8b83b08379f7f366a300ee320e/mepabukogirolezudi.pdf
- http://anhuifan.com/upload_fck/file/2021-4-29/20210429103059316019.pdf
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/rhf0ucl2pk5mf8s9i3cc74q89c/9860647990.pdf
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c116dd5cfa---68264717381.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac8b9f4858a---rubuletoroke.pdf
- http://shinies.ru/img/lib/file/11848745677.pdf
- http://sobsai.com/ckfinder/userfiles/files/tosofe.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=libros+de+carlos+cuauhtemoc+sanchez+pdf+ser+feliz+es+la+metal
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f662.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF662 | 16792 bytes |
font_01_sfnt_off00010e74.bin4df86c86829c83ec1963bd52ce00f30b5041a986750191720b88495ce956af0b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E74 | 19416 bytes |
font_02_sfnt_off00013fd8.bina4a543b612d6194553a7a67288d0c1d91be68de118970b26a6d8a921fe95aa5e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FD8 | 11140 bytes |
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