MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to various external URLs, some hosted on compromised WordPress sites. The presence of numerous URLs, including one with a 'how to install obb file' query, suggests a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://catamma.ru/uplcv?utm_term=how+to+instal+obb+file
- https://atlas-consulting.ro/fckeditor/fisiere/file/40133716979.pdf
- http://muzycznescyzoryki.pl/userfiles/file/jozinagosurutawezebeku.pdf
- http://fishngrill.iorderfoods.com/uploads/files/65574775273.pdf
- http://galaxyjewel.cn/uploadfile/files/jogekaloreliralox.pdf
- https://beysukonaklari.com/ckfinder/userfiles/files/17208911193.pdf
- http://hoteldanang.vn/uploads/images/files/lapebifude.pdf
- http://thenext.pk/userfiles/files/pozipunetunopivem.pdf
- http://jwconsult2005.com/file_media/file_image/file/7112464003.pdf
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16135d668077d3---navex.pdf
- http://fthyhs.com/resource/docContentImg/file/2021-09-12/d855014d8f0dc35154f0be4b100408bf.pdf
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140b98b9ff8d---98496513490.pdf
- https://galaxytraining.examinationonline.com/files/zilosuvenofokopodirerejof.pdf
- https://chingchia.com/uploads/files/202109150843395621.pdf
- http://rulife.ru/ckfinder/userfiles/files/kizanoxezus.pdf
- http://gainliving.com/upload/editor/file/megijitabokebalob.pdf
- http://webspace.mysdam.net/images/newsletter/files/37170740913.pdf
- http://ip-malkov.ru/uploads/files/fozumitekiwogebelesosibab.pdf
- http://nuklearmedizin-amro.de/userfiles/file/76271331823.pdf
- http://packagingandfoodmachinary.com/userfiles/file/zeraxorufefunixude.pdf
- https://mama-light.net/business_school/uploads/file/nomuvelutasawozuvune.pdf
- http://noithatmfc.com/media/ftp/file/42800932482.pdf
- http://daeryuhealthcare.com/ckupload/files/71587311266.pdf
- http://phucuongplus.com/upload/files/54424292872.pdf
- https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files/jabubelanup.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_off0000d639.bin30c48079002ca4e46ebeaee40c6d9cbc09895f83989de1717280981c1590d93e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD639 | 10324 bytes |
font_01_sfnt_off0000edb0.bin56ef360dfa84bd8b7155e4fa73e69474ac50a39a6cbb493b70cb4dc6c7c68350 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDB0 | 19300 bytes |
font_02_sfnt_off0001205d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1205D | 16792 bytes |
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