MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm hosted on multiple compromised websites, directing users to download further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with a phishing or malware distribution scheme. No scripts were extracted, but the presence of numerous links to potentially malicious PDFs on compromised CMS uploads suggests a downloader or phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160c5cbffcded6---wagiforamawesurosu.pdf
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fe9845859a---mugubesibebogidavuvube.pdf
- https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/b55a7e87de385d87742f1138f95890e7/fapuxibojiluvo.pdf
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160992db5f2763---67800213286.pdf
- https://aawyx.com/sites/default/imageuser/file/tolup.pdf
- https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/d4638b07a5288765b3bb7d05f5558348/vevezelelazifazo.pdf
- http://qytbearing.com/upfile/file/89810510840.pdf
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160d0430edd798---vewosele.pdf
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/32852fdb3d7dc78639f789c1ce9de4d5/73603034694.pdf
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b846547e980---nadopofojodiz.pdf
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/5fd082d0f2e56714dd9408ad859cefc4/lenurezetofapelavavinopas.pdf
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085fa81e52e2---67241611880.pdf
- https://big-cash.de/wp-content/plugins/super-forms/uploads/php/files/8ovj547dcmjnui6hmq5rhprfpg/58009744826.pdf
- http://urbanconstructions.org/images/uploadedimages/file/wipazefoxakikut.pdf
- http://fedorahosted.org/lohit
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=class+10+sst+solutions
- 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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_004_off00011ee0.binc903f5afc575f7a8db4befde0d9d2548c60d2e14f2b05364c14e29ee72a677cc |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x11EE0 | 7480 bytes |
font_00_sfnt_off0000e956.bin53715d3d99f35b545cc1c15862a97de8fe29ffda0ef6771c3fcd3c8986346068 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE956 | 4684 bytes |
font_01_sfnt_off0000f950.bin28edd1db8d2a9de3a83338c9aefee5149471228b08f1a43d0caf9972d0cb45d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF950 | 10976 bytes |
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