MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous embedded URLs point to compromised WordPress sites and disposable domains, suggesting a link farm designed to redirect users to malicious content. The primary purpose appears to be phishing or malware distribution through these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://pistant.ru/uplcv?utm_term=rfu+online+services+private+limited
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad4c53f18ae---dufokowaxovumakepewusexo.pdf
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b26bc09600---xebefepezajedabilivo.pdf
- http://www.aqsclimited.com/EditorImages/file/latole.pdf
- https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/94c2d5aecbff91b16ecb1b4205cf59e7/sigipodevagem.pdf
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/nk1997qegft9jv26qt7alhllgl/88721748803.pdf
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa161847ba8---zenesarago.pdf
- http://gramercy-grand.ru/files/file/29677141863.pdf
- http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160702e4240d8e---kipejururiwovewidinokapa.pdf
- http://namlongprojects.com/images/uploads/files/goreram.pdf
- https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3f89d9e14---10203199806.pdf
- http://bmcnx.com/userfiles/file/vavivezive.pdf
- http://cnex.cc/images/blog//file/gupefakef.pdf
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c52e4b5561b---dubiwubagu.pdf
- http://www.loicadesacavem.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1607ed662595d9---7359489072.pdf
- http://sendedianqi.com/upload_fck/file/2021-6-18/20210618115731885175.pdf
- https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/fc7e622e4f8fa24b09a89c8829b284f1/dexoxiwu.pdf
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b0e5e8d2830---27022858100.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9ad42702ba---85199288188.pdf
- http://xn--eyt274i.com/upload/files/ralofigederutazajofun.pdf
- http://100gastro.cz/soubory/files/71593866863.pdf
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/m61ug5n46a673p1db7ttf7j15e/76162645066.pdf
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160d76520e1f70---xamenodudovo.pdf
- http://hzjksj.com/images/upload/File/ruwopenitirakuroji.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_off000102b9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102B9 | 16792 bytes |
font_01_sfnt_off00011acb.bin3245da49590743c593c189baab06a6d56bebf9fcfc8d5bab03ab0f6b4c33ba43 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11ACB | 17096 bytes |
font_02_sfnt_off0001473b.bin1ecd12a1251ecc89f2d114b6d0c72d6ddb073eaaac1e7fb23c2ce306c93df86f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1473B | 10992 bytes |
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