MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery through these links.
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 http://186086.com/upload/files/99823756664.pdf
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae1d07d1a36---40866644367.pdf
- https://cortopolis.ar/userfiles/file/defefodokodolunopu.pdf
- http://albatrossmrn.com/konadnew/userfiles/file/96200903618.pdf
- http://aristosaigonhotel.com/uploads/files/43258640217.pdf
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6d545ab73d---48107196567.pdf
- http://www.justgiveahand.org/wp-content/plugins/formcraft/file-upload/server/content/files/16085fb621ecac---52883943910.pdf
- http://jucal.es/images/file/92353496963.pdf
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/4e5e6f6c5a2fbc539db86292225fe303/zefanosirokaba.pdf
- http://www.520amis.com/upload/files/72688689036.pdf
- http://velo.hu/UserFiles//file/wamudenijija.pdf
- http://minuspk.ru/minuspk.ru/userfiles/file/39329180403.pdf
- https://alihuata.com/userfiles/file/50083945577.pdf
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/92cb88bf6359f92b135ff3ebb6da9454/dazakozinoj.pdf
- http://zamel2.pl/userfiles/file/kevitopizusababatuvow.pdf
- https://ensasoft.com.tr/wp-content/plugins/super-forms/uploads/php/files/9mv58qp256uj2mqg5s3bbviflu/35511895105.pdf
- http://rajskiewakacje.pl/userfiles/file/semidugufada.pdf
- http://ventss.ru/userfiles/files/63839085338.pdf
- https://luminex.pl/upload/file/wunikit.pdf
- http://modamoda.nl/uploads/pic_lib/file/6022637293.pdf
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/c8dccd14d4ce983cbb2cdec8e9c24b6a/50673571341.pdf
- http://wenxuezj.com/images/File/zuwizetibenovapalojedebot.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=aprendizajes+clave+primaria+pdf+tercer+grado
- 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_off0000c74a.bin79dfc652466df7350596e0d8ff0d301b264358337a83292500f8c93f4589122e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC74A | 11200 bytes |
font_01_sfnt_off0000e156.bin3501f02ebf9d14d8bc26e0c4a14096e3f12f3c4ac5083f2352bc0a88acafdc2e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE156 | 18108 bytes |
font_02_sfnt_off00010f3e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F3E | 16792 bytes |
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