MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier, indicating malicious intent. It functions as a link farm, with numerous URLs pointing to compromised CMS uploads and disposable hosting, suggesting a tactic to distribute malicious content or phish users. The presence of embedded JavaScript, though not fully analyzed due to obfuscation, further supports the execution of malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/465f2c8b401ddeef4380eef288b64016/47133594813.pdf
- https://xlspandoek.nl/userfiles/file/tokavuwekorumuwik.pdf
- https://baatco.com/ckfinder/userfiles/files/renisojibuvejizazodid.pdf
- http://qiuyutv.com/userfiles/files/20210704014350.pdf
- https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/8b5de7dbe64c6668686b72ed4d68f9c5/56383050666.pdf
- http://riggi.ru/userfiles/file/namusupagan.pdf
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a29a0deacae---19988723083.pdf
- http://jiehuist.com/userfiles/files/66159792003.pdf
- https://agermag.ro/mm/file/perizafimavebukipir.pdf
- http://t-p-fortune.com/userfiles/file/69966103137.pdf
- http://mg001.cn/upload_fck/file/2021-8-1/20210801183401446730.pdf
- https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb7ac54b73---bebegibapavisowot.pdf
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611b2c59b3a77---datimekasodamamuzaju.pdf
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/7f2eeu2s3dd7mtqofnacdemf93/nujevodi.pdf
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16070aeed92073---wutonexuxijubilojime.pdf
- http://okun.su/upload/file/28719631500.pdf
- https://itacademyindia.com/ckfinder/userfiles/files/saboke.pdf
- http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/031af88ed67d14ddb4e88405e62ebd30/76810187571.pdf
- https://aduanaldelvalle.com/userfiles/file/51001128528.pdf
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/8c57222bb656a28cd9f6c98dcbb08f46/68425860797.pdf
- http://energy-labels.com/userfiles/file/tijaborapu.pdf
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/8vjoqaeprbkbknbacd3vkatdgi/95573673694.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=introduction+to+geometry+and+topology+ballmann+pdf
- 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_off0000ba30.bin99cc6ed0315b27bb0377438e838493e7941206ec2d0aa78410e7555befcd60e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA30 | 16576 bytes |
font_01_sfnt_off0000e4d5.binb1cad981a36653c497ad9531f2dbcdfc5ad4874f99121c536c9dab035ac560d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4D5 | 11100 bytes |
font_02_sfnt_off0000fe45.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE45 | 16792 bytes |
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