MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised WordPress sites, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://phuocthuan.vn/images/pic/file/rosokajovad.pdf
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/vbavj205cdulh4cimrblv72cug/nanejunofovizokenidudor.pdf
- http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609e02ee0c12e---bekevedavukepebibe.pdf
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/7648c22d18ef02c04a3de81cf58f4cae/sinaralelulefaruf.pdf
- http://www.cerathai.com/image/upload/File/xazep.pdf
- https://taevlingar.se/images/pages/file/82200867274.pdf
- http://morecoredesign.com/images/imageUps/files/goditiwek.pdf
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/160c77b176a154---78922802351.pdf
- http://baodieptailor.com/uploads/2021-06-25/images/files/79858068925.pdf
- https://allegypttours.net/userfiles/files/vepolajizupe.pdf
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/62633451c8a4218941a4cc454ae6854b/wivavobozegimufokitizazu.pdf
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074c0b3b8e29---13775980109.pdf
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b20dda49f9a---66799369714.pdf
- http://vom-ragnaroek.de/uploads/file/47292175134.pdf
- http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4e3446bc7---25576438001.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078b4db49083---femusizojubadomu.pdf
- http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/de9c69d2ae59c2d27ddc55436d9d9255/balalebuxizodimefexawi.pdf
- http://littlepearlbooks.in/data/eimages/file/29665136058.pdf
- https://cowichanseniors.ca/userfiles/file/xijuninamalajudafibi.pdf
- https://aiwatopup.com/ckfinder/userfiles/files/49577882012.pdf
- https://mls.lighting/wp-content/plugins/super-forms/uploads/php/files/015a63b0516bf53a270a2a2460d67897/tadetimoxozawuz.pdf
- http://consol.hu/images/uploadedimages/file/marafavivajusuj.pdf
- http://puzynowska-kancelaria.com/userfiles/file/fupupasapiwomuxenur.pdf
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/cc248cc8a941d94e63bb007186ac6c98/16384531842.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=calculate+the+wave+number+for+the+longest+wavelength+transition+in+balmer+series+of+atomic+hydrogen
- 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_off0000e4e9.bin8f60f6a1844d57f0bd360b3a5fd2382534fd3bab66e7bfcbe03ad1e1f65faed6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4E9 | 11460 bytes |
font_01_sfnt_off0000ffb3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFB3 | 16792 bytes |
font_02_sfnt_off000117c5.binf5017e95e155f8d354ee8e6ed8f4f78ba8eb55b0dbd661a7755c2e47d902833e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117C5 | 18788 bytes |
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