MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The sample contains a link farm pointing to compromised WordPress upload directories and disposable hosting, suggesting it is used to redirect users to malicious sites. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9902
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://dgjinhak.kr/DATA/upload/files/202105270252224948.pdf
- https://www.apartamentselsllacs.com/wp-content/plugins/super-forms/uploads/php/files/p8f9t22dnp5tt0qqpejlpndiab/nijamevipozula.pdf
- https://latework.cz/soubory/niferugeguxoresuwujepo.pdf
- http://sibmetiz.ru/upload_picture/97332095323.pdf
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ebb94b7b16---71692518206.pdf
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/7d05c125ea653afa548b094e63f4740c/63178361827.pdf
- https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/3f4750ab862286eb706fb1e62ee2268f/47021937878.pdf
- http://alexhofford.com/temp/files/file/rivozofifabikiwifonive.pdf
- https://stef-nancy.fr/upload/document/65714698944.pdf
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160bac21e712c0---98670057082.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/aa02d309e45e34f92d87a9146265999d/kosovifog.pdf
- https://keluargamimpi2.com/contents//files/73874313142.pdf
- http://msiutilities.biz/documents/65253208042.pdf
- http://albino-pitti.com/pub_img/file/11456736356.pdf
- http://ilkyoukais.com/Images/Media/files/wonovewuvilerowilusekoj.pdf
- https://citronel.com/userfiles/files/62594704681.pdf
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160c33e5d74e1f---55091934068.pdf
- https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/c96c76cec26a61ed30d062f9ec36c884/41320836980.pdf
- https://www.basur-tedavisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606dc0d908208---20818875458.pdf
- http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/37c0522312ddc1898b9ced8946b03ed2/58577406506.pdf
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/8d049c17cccfd134003eb4fa6e4f0ad5/40439659721.pdf
- http://deurenhanger.nl/userfiles/file/88734619459.pdf
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/ocq9kqqu0t5mlkjmtsab3tns7p/xalemasifeda.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=science+class+8+chapter+13+question+answer
- http://irodori.kir.jp/files/file/11936956523.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010200.bin10e006e6cb65d5a1388b5295aabb606f7a49fdc1d833263927856d38b44fba00 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10200 | 11308 bytes |
font_01_sfnt_off00011ca2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CA2 | 16792 bytes |
font_02_sfnt_off000134b4.bin9d624c0ffda49575b8b7711b256b0ccc635edf9d9a5cef5e476f72de1fe71fe0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134B4 | 16800 bytes |
font_03_sfnt_off00016072.bin450eea5fc67953cc3bdc764260aa6f1739571c17331c9588074966c3dbef4c6c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16072 | 16088 bytes |
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