MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous external URLs, many pointing to compromised CMS uploads, suggesting a link farm designed to redirect users to malicious or phishing sites. The presence of embedded URLs and the nature of the heuristics indicate a phishing or content-luring attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 https://pistant.ru/uplcv?utm_term=cheat+codes+for+gta+san+andreas+android
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613fc7b5ef8f3---98749176149.pdf
- http://inbjnews.com/data/cheditor/0603/files/puwajagewifixapasuxiga.pdf
- http://epicridesnepal.com/files/54060646414.pdf
- http://geraldinekilkelly.ie/waxefisewadejenavok.pdf
- http://goldenteriyaki.com/uploads/files/xidawirirolipixetido.pdf
- http://struttur-arch.it/userfiles/files/43399385035.pdf
- http://mertcelikkapi.com/userfiles/file/nufevakusurifax.pdf
- http://doubler-son-capital.com/photos/files/vatuvoxepebak.pdf
- http://sitoad.com/bbqjoekey/files/202109050943192628.pdf
- http://sys-svinding.dk/userfiles/file/68915687181.pdf
- https://minlinart.com/archive/upload/files/13008104271.pdf
- http://seychelles-resort.com/images/blog/file/winilusasisitameromotes.pdf
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/16132e890f1810---gegur.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613cdcefa3327---60867488161.pdf
- http://epmresearch.org/userfiles/files/4204513145.pdf
- http://yarpb.ru/pic/userfile/70583456385.pdf
- http://tsradviseurs.nl/mailing/images/photo/file/36813591879.pdf
- http://saovietgroup.com/upload/FCK/file/lazegivamufanalu.pdf
- http://mexvp.com/ckfinder/userfiles/files/61360636724.pdf
- http://vasekurzy.cz/userfiles/file/petagowojofudajodupida.pdf
- https://dewalt-naradi.cz/media/upload/editor/file/zuserejekazinoxemij.pdf
- http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161308fdd054e0---rujunidojog.pdf
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/7f583jk61pg4933rpn6kt7ic76pupvk6/98805226726.pdf
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/64e982ca2fc56ea541108d9f86b7aa99/jagorokuxufavadaj.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_off0000e992.bin54b9682141da5b74aa43e32b69e7dbedb67aa454dc82326aacd87d9a8f0e9e24 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE992 | 10740 bytes |
font_01_sfnt_off00010206.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10206 | 16792 bytes |
font_02_sfnt_off00011a18.binfbcf60bb68d1d7d84c17df5ee3bda948556da28640e208dd667e4a4237c4f43f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A18 | 18348 bytes |
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