MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous links to external websites, many of which appear to be hosted on compromised CMS platforms or disposable domains, suggesting a link farm or phishing lure. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a deliberate effort to obscure the true destination or leverage compromised infrastructure. The primary attack pattern involves directing users to these external sites, likely as part of a phishing campaign or to serve further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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 http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/ovr08j4i1k4pg8ndjtueuhtbv4/21899779644.pdf In PDF document text
- https://classoft.ro/userfiles/file/36946333474.pdfIn PDF document text
- http://poptheme.cn/uploadfile/files/20210904_224910.pdfIn PDF document text
- http://kodemari.info/data/files/nevabifurinuli.pdfIn PDF document text
- http://1544-7419.net/upload/fckeditor/file/77943330375.pdfIn PDF document text
- http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/effb2bda939dedbe5b4fe9429864b3b3/49364755129.pdfIn PDF document text
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141dabed17c5---jukiwunotuji.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1612f38d0b438c---losolipaturejozusufatako.pdfIn PDF document text
- https://office-agglo-larochelle.fr/userfiles/file/1945012383.pdfIn PDF document text
- http://yesilderecine.com/admin/editor_resim/file/53279744058.pdfIn PDF document text
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/147db764f3d18d353400ad4b1b44c037/lekozafewewebekowevilewep.pdfIn PDF document text
- http://resetimpianti.it/reset/public/file/dusapenopevitijozi.pdfIn PDF document text
- https://perfectsextherapy.com/public_html/userfiles/file/9591370867.pdfIn PDF document text
- http://conditum.nl/userfiles/file/48231072619.pdfIn PDF document text
- https://luckyfood.itweald.com/uploads/files/613ff1dd4faca.pdfIn PDF document text
- https://reazfarah.com/ckfinder/userfiles/files/28305871743.pdfIn PDF document text
- http://kutscher-customs.de/gfx/userfiles/files/82923196352.pdfIn PDF document text
- http://saigonford3s.com/uploads/2021-09-08/images/files/98288416771.pdfIn PDF document text
- http://gourmethousemacau.com/UploadFilesfile///wufuzemitonoluganepon.pdfIn PDF document text
- https://fontaine-eva.fr/userfiles/files/miditegodi.pdfIn PDF document text
- http://industrialsupplies.pk/userfiles/files/wivekutipufa.pdfIn PDF document text
- http://sz-nuoyi.com/Upload/file/2021091204170615064.pdfIn PDF document text
- http://locke-3c.tw/uploads/files/202109170443062657.pdfIn PDF document text
- https://esterkins.de/ckfinder/userfiles/files/dezaferidibeg.pdfIn PDF document text
- https://sushixusa.com/userfiles/files/libibunepam.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=tamil+movies+app+for+androidPDF 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_off0000d5a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5A2 | 10592 bytes |
SHA-256: 426dd46de7f2e14e5dcab5b3d5aa44dea91f3a49c88d8bde992a359a29c904eb |
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font_01_sfnt_off0000edc8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDC8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000105da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105DA | 17852 bytes |
SHA-256: 97526711b941654c77185c0c3c9c0df708b9cbb8235fd1c12f543e51d9923819 |
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