MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a large number of embedded links, many pointing to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution campaign. The PDF structure itself does not contain executable scripts, but the embedded URLs are the primary attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/57f5ffe6ea710e25fa181cd206aeceb4/tutemex.pdf
- https://cytairtool.com/test/userfiles/file/20210619_88396.pdf
- https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/91m8qvd8ojbaods7itv1561apa/89831811579.pdf
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/3d83ee6070530a23ed970cb87395b687/wunopenawix.pdf
- http://cdmvt.cz/sites/default/files/68463745925.pdf
- https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/2j7nlkl287orccc8t7iqr9039q/jiginunexejo.pdf
- https://susta.vn/userfiles/file/pegojujegowivibe.pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/da5cd354ba31395b13255ae8c9ef362d/pizupapebatawolebududura.pdf
- http://csc0535.com/userfiles/file/20210615210421_3a1okx.pdf
- http://transcash.com/ci/userfiles/files/filepor.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/hjihpdmg9op06f26nicvu3gl95/wajazin.pdf
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16081867eec46b---70348412639.pdf
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cd5d1ed4fc---sezividelajikafe.pdf
- http://blissrenewbeauty.com/newerac2c/userfiles/file/92210942188.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160856fd2b82a2---44099559649.pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/c58a2ef4c13b8faa8b6074540cb0d8fa/xerixazatejazimotewatazor.pdf
- https://bisnismedsos.com/userfiles/file/kodaparamibejize.pdf
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a61b6848064---pidaweladilusumunuret.pdf
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b571343002---nuxipisoxoxagomeponulute.pdf
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a32a7ae9bbc---71483879709.pdf
- https://renault-service.com/userfiles/73499435257.pdf
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/mfb9foots5mad1t7guo08v7478/zasowomobitebakujuliw.pdf
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160848c3b725d0---30236932262.pdf
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/b8ddb09ce5c5b1e2be28162aad393d05/43655982223.pdf
- http://aranykoronakft.hu/userfiles/file/nopirebipa.pdf
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/619ep0qir44k6f8d2jr92i3mh3/ziguwisemezamosolerevexun.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=explain+biodegradable+and+nonbiodegradable+waste
- 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_off0000eeca.bince1a277481ed098c9706c8c52ae90ca8b2fe424ce0ad78a446920396a57917b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEECA | 16344 bytes |
font_01_sfnt_off00011890.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11890 | 16792 bytes |
font_02_sfnt_off000130a7.bin9775a72967440a42d5fad3c3d390268a5636367dd1424657b092b0eaf0c5fc15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130A7 | 10880 bytes |
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