MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised CMS upload directories, suggesting a link farm designed to obscure the ultimate destination. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a secondary payload or phish users. The presence of multiple compromised WordPress upload links and disposable hosting suggests an attempt to evade detection and analysis.
Machine Learning
- Nyx PDF Classifier malicious score 0.9958
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://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160edfb721b747---resojisonarifubukawimadi.pdf In PDF document text
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160a673f4a5c18---32552326923.pdfIn PDF document text
- http://4grd.com/cmsimages/file/lokar.pdfIn PDF document text
- http://df-2.de/images/daten/file/89008737931.pdfIn PDF document text
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aa5e75d366e---30791922359.pdfIn PDF document text
- http://xn--80aejmo0alc.xn--p1ai/ckfinder/userfiles/files/93638057283.pdfIn PDF document text
- https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/1726d8c47001931b7c1a4751ab784887/dinunutikozodo.pdfIn PDF document text
- http://ototavandosemesi.com/resimler/file/befukom.pdfIn PDF document text
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/ufo6gjbc302hou1rcp1kkfkiq4/148077908.pdfIn PDF document text
- https://alianzatours.com/imagenes/file/pamamisanuturidupo.pdfIn PDF document text
- http://www.alexgis.com/siteuploads/editorimg/file/15295789843.pdfIn PDF document text
- https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/gsdnn4knsqvqq0ahk58n9fibh3/74895155652.pdfIn PDF document text
- https://asiajitutop.com/contents//files/57988100454.pdfIn PDF document text
- http://nemdanangpho.com/uploads/2021-06-09/images/files/92037512772.pdfIn PDF document text
- http://uleshuzatshop.hu/files/file/51783624400.pdfIn PDF document text
- http://www.awakohchang.com/image/upload/File/uxujirovovimepaja.pdfIn PDF document text
- http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/bf30809d4f32ee58981a3e410d693998/74251338365.pdfIn PDF document text
- http://cateringkieuan.com/uploads/userfiles/file/pakilit.pdfIn PDF document text
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/b097fcdde54284867df5ce3dc96b7622/97356772086.pdfIn PDF document text
- https://dialogueinpraxis.net/files/docs/nexixebase.pdfIn PDF document text
- https://jfefood.com/wp-content/plugins/super-forms/uploads/php/files/72a7a566408ebbb8698cac603a5de2ac/lerijoruregivebonanujel.pdfIn PDF document text
- http://www.makattakasinti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070bdf5be347---21060430602.pdfIn PDF document text
- https://tiklatakip.com/calisma2/files/uploads/81027019702.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a4cd84c000c921eed1bca4e01533af0d/3005055800.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=a+bronsted+lowry+acid+is+a+substance+whichPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00014f0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14F0D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001671f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1671F | 19768 bytes |
SHA-256: 75fe67c4e4ff06c0141a702c605596c54c4d9d6558c2299d64f7af39bac888b8 |
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font_02_sfnt_off00019bdb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19BDB | 10888 bytes |
SHA-256: 07085761023d998277fc71cfaf36c3f7a972e3f85cd59bf6de8c21dba7498eba |
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