MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic further support this, indicating the document's primary purpose is to drive traffic to external, potentially harmful, resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://oniceh.ru/uplcv?utm_term=a+boogie+99+problems+lyrics
- https://pasarantogeldua.com/contents//files/pusejuzeligegomelezoned.pdf
- https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bda24b542b---solujadovu.pdf
- https://pinpointfeedtech.com/ckfinder/userfiles/files/85017257381.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160803d85b3f51---kizemela.pdf
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/0cd297502341e1bc44218089930cb7ca/33589121965.pdf
- https://absolut-fit-and-dance.de/wp-content/plugins/super-forms/uploads/php/files/145eekancjj9p17q6r1lotr4am/66347042812.pdf
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16081627aaaaeb---rojanejemilizowojef.pdf
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a242553bfc6---tivuzolugibog.pdf
- https://zlatartopalovic.rs//files/4092909725.pdf
- http://ahxxzx.com/userfiles/202105/file/sogawabekotizeligozukale.pdf
- https://camping-du-lac-dijon.com/fichiers/dofafaz.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/t2voo96n84cblssnua1cjvqf5t/35918096925.pdf
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ab753fc81c1---10028106645.pdf
- https://jjmassociates.com/wp-content/plugins/super-forms/uploads/php/files/1afcdeeac35cc4bce80e511d4c0bb5f3/42357108174.pdf
- http://younewstoday.com/task/userimages/file/31158035797.pdf
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160743d302e7b4---tosonomubaxukutijupan.pdf
- https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/6d0a4db9936da08bb26c1f039f8029bd/bisofikorigokomufipon.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/73e6c83eb6c24f053642be2dd3d82eaf/xiluvusaxaveribijewe.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://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000df41.binaf6fe7f5f8fb31fd9e6fa0133dff3a593191f40961ffbf2c134c56aa123fd0a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF41 | 5432 bytes |
font_01_sfnt_off0000f1b9.bin5a99c8f305f4c610d0125d2b19b6a6503746b6029407cd190a468de59ad206f6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1B9 | 10848 bytes |
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