MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised CMS uploads or disposable domains, suggesting a phishing or malware distribution scheme. The PDF structure and embedded links are consistent with techniques used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://chiari-web.com/ckfinder/optimist/files/wusikurosexejezuminad.pdf
- http://xn--zb0by3yusal20ak5lcidnwigi.com/ckfinder/userfiles/files/1630743709.pdf
- https://behbehaniprojects.com/uploads/files/jekojipagexukepakoru.pdf
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16138bc82ca7e2---paratekeki.pdf
- http://gzperson.com/uploadfile/files/79999143876.pdf
- https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/4818ea1ca0b380127d45c415888185d0/67622830508.pdf
- http://probeg2000.ru/files/userfiles/files/13218315420.pdf
- http://kadh.kr/bobod/upload/file/7995065263.pdf
- http://ikhmongol.mn/ckfinder/userfiles/files/13319710423.pdf
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/7cbbb9937f553ed69df90a0cc9bdf893/bamatunojopibijup.pdf
- http://bubb.cn/up_file/file/fonuxop.pdf
- https://thietbivesinhsonhoa.com/webroot/img/files/divarukujir.pdf
- http://123flower.doweb.kr/upload/files/51728976675.pdf
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/16138c44331503---51692626048.pdf
- https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/80072710cd7a2348028307ee10953b8a/52449492518.pdf
- https://dusunceokulu.net/resimler/files/79804073565.pdf
- https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/2nbj41n4erdbh7ntkubih21oh6/43531838732.pdf
- https://psihodesk.ro/ckfinder/userfiles/files/29706709374.pdf
- http://abwvictory.com/uploads/files/86561323229.pdf
- https://novitas.ro/files/3402939762.pdf
- http://elitsatodorova.com/uploadfiles/file/18485493506.pdf
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/16136677fe6bfc---58152461390.pdf
- http://unitez.net/images/newtech/files/11973889612.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=cast+my+phone+to+computer
- 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_off0000dce7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCE7 | 16792 bytes |
font_01_sfnt_off0000f4f9.bine52474b5a60821b8093059169fbb575b4a47fc41f0d3eeb12798e753c85af09a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4F9 | 17564 bytes |
font_02_sfnt_off00012250.bin63ef6653f5d133dc8648a5c7e5c0dd769800c73ce7fa04bba0547cab9220c312 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12250 | 10748 bytes |
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