MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised or disposable hosting, suggesting an attempt to lure users to malicious sites. The presence of a link farm on compromised CMS upload storage further supports a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9954
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://lafiestadelmoto.cz/files/file/borewefolenujumamexo.pdf
- http://galeriejacqueselbaz.com/userfiles/file/xibolamuvoxiwazutogobu.pdf
- https://innovaciones-plasticas.com/imagenes_cont/sitio/documentos/87466713691.pdf
- https://srmhomes.com/images/bulk_images/files/vagemuvapeker.pdf
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/16135540fc2b97---21290792685.pdf
- https://playindiano1.in/ckfinder/userfiles/files/jujite.pdf
- http://www.malagatour.es/ckfinder/userfiles/files/53233616712.pdf
- http://asbu.net/uploads/FCK_files/file/kaworesebimefizotu.pdf
- http://dinobajka.pl/Upload/file/3141751478.pdf
- https://latarnik-kopice.pl/galeria/file/givebalanoxenal.pdf
- http://www.satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/tugur.pdf
- http://evo-models.com/uploads/userfiles/files/solibikavokaw.pdf
- http://clinicaveterinariacene.com/userfiles/files/dutaloziledaxago.pdf
- https://kohphanganhotelandtour.com/userfiles/file/74100575785.pdf
- http://e2ingenieros.com/ckfinder/userfiles/files/97175623645.pdf
- http://myrbacken.se/login/ckfinder/userfiles/files/69251860903.pdf
- https://tbsva.org/Upload/files/20210901072016.pdf
- https://managedentalclinic.com/ckfinder/userfiles/files/18059825004.pdf
- http://nhakhoauytinhaiphong.com/upload/files/jusanapopupuvuvakixaza.pdf
- https://10kshot.com/customerinterview/ckfinder/userfiles/files/19692367981.pdf
- http://keralastatetailorsassociation.com/userfiles/file/ninuvonimalusob.pdf
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161396ab481e17---winujososebexivuzupatoko.pdf
- http://ckudzcssffhhj.handysociality.com/upload/files/jixavaxulixaxobu.pdf
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a5dc35aef4---gaxibimasixoduvosep.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=cheat+billiard+8+ball+pool+android
- 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_off0000b06f.bin1ddf069d9d5edd5fd5845d930c022331470ed09fed0b07732d9d447d1e9fc668 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB06F | 10700 bytes |
font_01_sfnt_off0000c8a8.bin68eb480b992abe3d48f5522b07b9e9a8b9e476017bd2919ba8cbd616ade3334b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8A8 | 15928 bytes |
font_02_sfnt_off0000f0d4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0D4 | 16792 bytes |
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