MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.007 JavaScript
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting it functions as a link farm. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically indicates this behavior, likely to redirect users to phishing sites or download further malware. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://irlanc.ru/uplcv?utm_term=tachyon+vpn+download+apk
- http://hk-sai.com/ckfinder/userfiles/files/97675363719.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/161329ac10b2cc---zaduzime.pdf
- http://ser-buk.com/userfiles/file/pexutanavawiw.pdf
- https://avukatwebsitesi.trakyasoft.com/upload/files/mimawagimuvisabisikafajal.pdf
- https://kompaspt1.com/contents/files/zidakejub.pdf
- http://arohitourandtravels.com/userfiles/file/77270399618.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161402e2bcaf74---33914776832.pdf
- https://lexcochoralsoc.org/demo/lccs/beta/userfiles/files/61436550975.pdf
- https://bbpartner.cz/userfiles/file/fajed.pdf
- http://travel-door.com/userfiles/file/68240425961.pdf
- https://lekkermooi.nl/userfiles/file/zozimuxetujefegal.pdf
- http://xn--66-6kc8bfmkmjd.xn--p1ai/admin/ckfinder/userfiles/files/duvopesuk.pdf
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140947312e5e---gilutuzunazex.pdf
- http://vasekurzy.cz/userfiles/file/fowujefepuje.pdf
- https://weborder.cloud/userfiles/file///44482409424.pdf
- http://heryeryesil.com/resimlerfiles/pefomerapuvigepezitedegib.pdf
- http://rfychina.com/upfiles/files/16319088052849.pdf
- http://joinsocialbubble.com/cake/beta/userfiles/file/monifebej.pdf
- http://qdsenfeng.com/data/files/48309356099.pdf
- http://tiramisu-o.com/yamituki-n/uploads/files/32753109743.pdf
- https://nenmongdangquang.com/upload/files/54408488631.pdf
- https://livstyle.ro/home/livstyle/public_html/uploads/files/miwixarowojimodetuxoxab.pdf
- https://biomedchita.ru/imeg_master/file/zufolor.pdf
- https://radmangroup-ye.com/rgfiles/file/83442008448.pdf
- https://questyme.ca/userfiles/file/28541670623.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_off0000cbe0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBE0 | 16792 bytes |
font_01_sfnt_off0000e3f2.binf8956d2681bd4bf7dbbfcaf43c0f5ec55aa0153fd9ba817831aba144676fd236 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3F2 | 18424 bytes |
font_02_sfnt_off000114ab.bin72d6954b462ca01ed9dffa207c568626af7c78ba5e4623d2a0042be45b8481f9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114AB | 10340 bytes |
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