MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains numerous embedded URLs that point to compromised websites and disposable domains, indicating it functions as a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The presence of multiple distinct hosts and the use of 'utm_term' parameters in some URLs further support the classification as a malicious link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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=select+case+statement+in+vba
- https://condicionamentofisico.com/arquivos/file/wifutosawepijuzapodod.pdf
- http://erdivigado.hu/userkepek/file/sakuke.pdf
- http://sacoorhealth.pt/site/upload/file/65882568825.pdf
- http://strahovka66.ru/userfiles/file/wenolak.pdf
- http://phuwangnam.com/user_file/file/36483727216.pdf
- https://rittenhousesmiles.com/wp-content/plugins/super-forms/uploads/php/files/62d028e910cf9c45e77a27413dfe166f/fosutubebebutoxesowovut.pdf
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073a0c30e28e---xegizefebekexijomusuf.pdf
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/5vkicsvb8cnuuc4no0up8b1rcg/nutanaduxegumamusato.pdf
- https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//21240502206.pdf
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/5c7dddeea5bda30fe0b54047c5178791/giwuganivogutevaze.pdf
- http://charivne.info/images/file/34062593106.pdf
- https://abe-rdc.com/userfiles/file/40704757471.pdf
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/kb0joc25r1jvlqmkaeld8s0kd5/napunijagag.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b75fa33680f---kewutanirufazin.pdf
- http://bluekeydigital.com/images/pic/file/vufawa.pdf
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab6ad0c0b3b---49319993160.pdf
- https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/4b19a23d08fea59131c9d431fd59b9ae/82095851798.pdf
- http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160808a720b8bf---wepimitewojefomekinet.pdf
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160704340e9037---luzuzepuxepukukexetujunaz.pdf
- http://compsult.net/userfiles/file/85757207641.pdf
- https://cdpu.net/wp-content/plugins/super-forms/uploads/php/files/5f2627028dafb8b1728f38f8a6020a36/55026440050.pdf
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/biqgi4s9i9kjn4ofbk4ob0rl45/pubuko.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_off0000e160.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE160 | 16792 bytes |
font_01_sfnt_off0000f977.bin148b3dffcd6461401273aed0b0dcd3c77bfe232b9e44d20051ea1583443da151 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF977 | 10452 bytes |
font_02_sfnt_off0001112b.bin0206ce35fd77acf765682d86799bed34faaa63c47f4c6aa2487abff0d8bf9a79 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1112B | 17168 bytes |
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