MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs pointing to compromised WordPress sites and disposable hosting, indicating it functions as a link farm. The primary purpose appears to be directing users to external malicious content, likely for phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9962
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 https://laborke.ru/uplcv?utm_term=for+dual+input+balanced+output+differential+amplifier+voltage+gain+is
- https://moto-trend.cz/public/files/fck/file/58000610465.pdf
- http://anhuicrew.com/upload_fck/file/2021-5-21/20210521162459237308.pdf
- https://alamansyria.com/userfiles/file/33966251602.pdf
- http://jechtinger-wein.com/jechtingen/files/92594140020.pdf
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6748a250f5---65314388984.pdf
- https://appvid.eus/userfiles/files/69365955424.pdf
- http://lifemartrealestateconnect.com/wp-content/plugins/super-forms/uploads/php/files/ls01u53do7mngddsc9keidm7u5/mowupijuvokipu.pdf
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/740uj0psbt9t2d3au4v3k85196/riwepanufebeto.pdf
- http://ccsl.asia/files/76007001612.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609889a0a6824---33429892726.pdf
- http://ya-ke.cn/admin/upload/31242676486.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/f056df942726ad89f88f1eceb63ce643/megarit.pdf
- http://a2itsolutions.com/chop/multimedia/userfiles/file/dososimifafare.pdf
- https://dvg.asia/ckfinder/uploadfiles/files/83518142854.pdf
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e480b292f7---65767258024.pdf
- https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/949fa03a7a1dc816c1d8b30210921723/40880421340.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0c190a4ca---jagisakolatolileteside.pdf
- https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b2295638f7b0b42d14be583590000585/78911882559.pdf
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160988b23dfd35---91676489119.pdf
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1607ae1f923daa---46677322323.pdf
- http://collegium-connect.nl/ckupload/files/50481717245.pdf
- http://tks-forever.com/upload/2021/06/24/file/50360707846.pdf
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a63b206b280---18543062805.pdf
- http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16099f09db58a4---wofozuforomew.pdf
- https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/23c2ca90b560afd37d67cf776e148b95/nerupuzutif.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://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_off0000c3d6.bin85aba89d02506e2f28fd83640f91898559d4b25957130a28f6aed1a2bc1afcb0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3D6 | 16540 bytes |
font_01_sfnt_off0000eeff.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEFF | 16792 bytes |
font_02_sfnt_off00010716.bin894545f3605bc241e421bd9c33320a996c43a8ea984b521d1c808c8ebfd9447a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10716 | 11244 bytes |
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