MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm pointing to compromised CMS upload storage, with multiple distinct hosts and URLs. The embedded URLs suggest a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/e0hvb0qu11mqjgu1s5u863t86r/xoletefusozovofisol.pdf
- http://netinflux.net/userfiles/file/61887046848.pdf
- http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/7dec532fe11ce0b167e090b2164d877e/91400413205.pdf
- https://mmszke.hu/files/file/melosofikulana.pdf
- https://avenue102.com/uploads/file/winezemutefe.pdf
- http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076daff8830a---38123828205.pdf
- http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/8d5912934c997d3e7b8ee7f969d61fe3/nirulogofavofedikadijolub.pdf
- https://istocdukkan.com/userfiles/files/wixosojejaxigefipanus.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b02f140503---75038615970.pdf
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608867f32a49a---94425794411.pdf
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/aac9464e532fba4b301b22f4af3f79fd/83296699968.pdf
- http://nemdanangpho.com/uploads/2021-06-16/images/files/rawigifokapajefe.pdf
- http://okfilm.kr/userData/board/file/78816034838.pdf
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/e087032d65685b91d456b2510f8a04a7/60323406806.pdf
- http://canevinclassof70.com/clients/6/6b/6b8b8ee0d314e59372afbcb75100d768/File/daraluno.pdf
- https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/2107fc987a1df2e7f6485f39ba7d66da/76601446350.pdf
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16073524d9dd78---fimitevizefiraxe.pdf
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdaa8039f83---37275420091.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a84d087a31d---vovakosasakunarozavive.pdf
- http://sjar-tech.com/uploadfile/file///2021052703524538.pdf
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16093f69c2ac03---4664860029.pdf
- http://zeguvietnam.com/uploads/ckfinder/files/juzonegoru.pdf
- https://soechi.id/userfiles/file/geduv.pdf
- https://bikeid.net/ckfinder/userfiles/files/pufufaxubulugupabi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=composition+meaning+in+marathi
- 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_off0000b997.binc2af75f208ab6e642b442b719e73bcd60549c84eb7cd9e6cd35d1ff958a62f5c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB997 | 15784 bytes |
font_01_sfnt_off0000e1ed.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1ED | 16792 bytes |
font_02_sfnt_off0000fa04.bin1ec40cfab9046e2bd1dea046061430c586f214aef6ce3c4098cccc6cebcbb1c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA04 | 10684 bytes |
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