MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that point to various domains, many of which appear to be compromised or disposable hosting. The 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics indicate a pattern of using these links for malicious purposes, likely phishing or malware distribution. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
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://archism.ru/uplcv?utm_term=telecharger+gmail+pour+android
- http://telek-trans.hu/editor_up/50329882003.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/1s3lf9udnu8jvp8m4iqubtocm4/banata.pdf
- http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/161415130266d7---joxogofogoxazexab.pdf
- http://deborahmayerlawoffices.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/13404356173.pdf
- http://euredit-editions.com/userfiles/file/17715942029.pdf
- https://zapcdn.space/web/img/podborky/files/novufa.pdf
- http://sewakendragroup.com/userfiles/file/58134749297.pdf
- http://consulcongress.it/uploads/assets/file/muwibure.pdf
- https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/b2194f1eb005762acbf91eb8788de1b7/xipaxotijufuzibeno.pdf
- http://kfoodntea.com/dataroom/file/rubum.pdf
- http://nedvizhimost-v-sharm-el-sheikhe.ru/uploads/files/41155125483.pdf
- https://brincandoeaprendendo.com/fotosempresa/files/berevavokepipabuvolasixiz.pdf
- https://texigo.tw/upfile/files/2021/09/17/raxupipasovavado.pdf
- http://caerulumpharma.com/upload/files/jemukenafiporu.pdf
- https://www.traitagri-solutions-alternatives.fr/ckfinder/userfiles/files/65463265339.pdf
- http://paneldeconsos.com/userfiles/file/67356628374.pdf
- http://cdseoulps.com/uploadfile/fckeditor/file/saxizinafogakeseluloteg.pdf
- http://mayinmaunhat.com/upload/files/84175393151.pdf
- http://bebsulmare.com/userfiles/files/42457814745.pdf
- http://melly-incendie.fr/img_db/gesiti.pdf
- https://gym-rectif.fr/ckfinder/userfiles/files/46231836984.pdf
- https://machnhaduong.com/images/uploads/files/57212869280.pdf
- http://vce34.ru/attachments/file/33063159145.pdf
- http://goldsunjsc.com/upload/files/93652594027.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_off0000f303.bin850f9a5e074398f73fc229f47a47ddc135416494ed926453470a3530a201520f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF303 | 10756 bytes |
font_01_sfnt_off00010b44.bince88aa58e5f0aa33562a522d4dcdc544f541db707f8fd0d42c380a516892767e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B44 | 20180 bytes |
font_02_sfnt_off00013dd5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DD5 | 16792 bytes |
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