MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains a link farm pointing to compromised CMS uploads and disposable hosting, suggesting it's used for SEO poisoning to redirect users to malicious sites. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609316214d4c6---47247459451.pdf
- http://brandnewgoods.net/userfiles/file/momopowefabemenidazegig.pdf
- https://unitjaya.com/contents//files/supowovipuwib.pdf
- https://anandamsanyal.com/userfiles/file/pusojusivazetof.pdf
- http://anhuizpyy.com/upload_fck/file/2021-4-30/20210430094559652453.pdf
- http://bridgestone-ice-cruiser-7000.ru/ckfinder/userfiles/files/waxitubavu.pdf
- https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/16074a47b21f92---3555042836.pdf
- http://fapannimario.it/userfiles/files/zobezazuzovarizifagumezud.pdf
- https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/2b1924bf353e6deffe59788a6955a883/26604370009.pdf
- https://liniagdanskzydowo.pl/files/30090735923.pdf
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be08943ac6d---40500745781.pdf
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/16085afba1a1c1---58577873577.pdf
- https://medtek.vn/storage/file/tozowir.pdf
- http://wsp.pl/userfiles/file/27530072842.pdf
- https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/6eae511d24550920a7b887fe7b38efdf/4974015118.pdf
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/7ff46a4b7674760193ef1e1deabcddc9/lunufevorodobikolux.pdf
- http://bjzjygj.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/79791027948.pdf
- http://toonesk.com/upload/45250176695.pdf
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609a7de3618ba---lunalorarar.pdf
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b6ff8a5b9---lolib.pdf
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4526946c3---82840931446.pdf
- https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/hp8u0dn1k6t14guqvk334e92c4/xozutimajejodexovixis.pdf
- http://duancanhotot.com/upload/files/90435603037.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=free+robux+without+human+verification+and+no+survey
- 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_off0000e9dc.bin99d8f1d756786e6ca2ab5e2d5deaf0cce2c46ae3ef6053ce3562e65b6083c659 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9DC | 11280 bytes |
font_01_sfnt_off00010446.bin4be3fb6f7abb6588f1880c538e9371c640fd310310152198052a793b4e8cb154 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10446 | 17056 bytes |
font_02_sfnt_off00013073.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13073 | 16792 bytes |
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