MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of maliciousness. It contains numerous links to external websites, many of which are hosted on compromised or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall structure strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 http://jtour.vn/userfiles/file/16431163576.pdf In PDF document text
- http://first-group.kr/ckupload/files/84014754186.pdfIn PDF document text
- http://mazdooradda.com/userfiles/file/mogamevolive.pdfIn PDF document text
- https://www.m2asolutions.com/wp-content/plugins/super-forms/uploads/php/files/2d26c2ec804e5216f1b8d40a3fb51905/juxus.pdfIn PDF document text
- http://furmanreunion2021.com/clients/3/37/3732e4fa3878e851f9d164dff32a9cbb/File/73014374698.pdfIn PDF document text
- http://akgikorea.com/file_upload/fck_upfile/file/gabemasugudibikugo.pdfIn PDF document text
- http://afghansolar.com/userfiles/file/34828743334.pdfIn PDF document text
- http://babamoleskine.com/files/file/zesapuwelogabipotidoreb.pdfIn PDF document text
- http://csaladiegyteruautok.hu/userfiles/files/56435559007.pdfIn PDF document text
- https://tkquiz.com/userfiles/file/66424573114.pdfIn PDF document text
- https://holocaustresearch.pl/nowy/photo/file/14747836722.pdfIn PDF document text
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160f5d96006f18---juwifovevona.pdfIn PDF document text
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/4sbg1gm0kiusnsod4kn43nth52/737743099.pdfIn PDF document text
- http://yonezawanet.jp/units/24250/zcycom/files/kuvudid.pdfIn PDF document text
- http://hooleihomes.com/cms_images/file/lilawivekezorokuze.pdfIn PDF document text
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8c4ac6e89f---41523834141.pdfIn PDF document text
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160dbcf98261a2---doxosonozusanowelo.pdfIn PDF document text
- http://thainightjob.com/ckfinder/userfiles/files/31137380952.pdfIn PDF document text
- http://turinhotelcompany.com/userfiles/files/jevunidodesaso.pdfIn PDF document text
- http://travellerisland.com/files/49052652895.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=communicable+diseases+pdf+notesPDF 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_off0000d4e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4E6 | 16808 bytes |
SHA-256: e738bcabd841ec7293f2485661c792f0c5fc7148ba0a6c5b17efe66c49520e2b |
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font_01_sfnt_off0001005b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1005B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011872.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11872 | 10952 bytes |
SHA-256: 09579f4c65ce47a0f59d6b12f4f0e6e060c5cfb105774b684fb7ea3f95946471 |
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