MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a phishing or trojan threat. The presence of a link farm with numerous disposable URLs suggests an attempt to obscure the true malicious destination. While no scripts were extracted, the PDF structure and heuristic firings point towards a malicious document designed to trick users into downloading further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://dasbluemchen.com/buniwetejuruwupusasakebib.pdf In PDF document text
- http://studiecarriere.it/uploads/file/nenajamexovubipare.pdfIn PDF document text
- http://ucinnovation.ru/admin/ckfinder/userfiles/files/61490214335.pdfIn PDF document text
- http://skncn.com/u/files/xabewedurav.pdfIn PDF document text
- http://biosystech.com/pdsFck/file/josefetivesavuzup.pdfIn PDF document text
- http://uco-kampen.com/media/files/85109103339.pdfIn PDF document text
- https://csmgh.net/pevron/www/img/file/91917477915.pdfIn PDF document text
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/16133ea32f11de---30140339859.pdfIn PDF document text
- http://oris-am.com/editor_up/sigamafonedazu.pdfIn PDF document text
- https://cityface.cz/res/file/wonerisebakigodifugijuku.pdfIn PDF document text
- http://laptopplus.be/app/webroot/files/userfiles/files/41755362814.pdfIn PDF document text
- http://osheamaloneynylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fimufaruzojuw.pdfIn PDF document text
- https://pottoka.info/files/galeria/files/75170709426.pdfIn PDF document text
- http://erpsamik.com/ckfinder/userfiles/files/vaxemakufaj.pdfIn PDF document text
- http://doubles301.jp/files/ckeditor/files/kumuluwobelifotup.pdfIn PDF document text
- https://amatnieks.lv/pictures/image/35842720023.pdfIn PDF document text
- http://rheinmotel.com/userfiles/file/1456111348.pdfIn PDF document text
- http://dohertylaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kataxebupevi.pdfIn PDF document text
- http://oipipleszno.pl/userfiles/file/28677966580.pdfIn PDF document text
- https://lemarko.com/userfiles/file/83502097447.pdfIn PDF document text
- http://baovethanglongmb.com/upload/files/natanixi.pdfIn PDF document text
- https://tradegateindia.com/userfiles/file/kikajituxemixarubagab.pdfIn PDF document text
- http://pelejas.com/IMAGENS/CKFINDER/files/widonikusisezusetofu.pdfIn PDF document text
- http://churchontherockuk.org/home/churchontherock1/public_html/userfiles/files/13158154660.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=watch+our+friend+free+onlinePDF 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_off00012303.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12303 | 10500 bytes |
SHA-256: 60303bdd9cb8c68773d16988edf1a1cd5d012b55821d758ba7a7ccf04266ad48 |
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font_01_sfnt_off00013ad6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AD6 | 20008 bytes |
SHA-256: 3a93b702341b1a7c318cf06adea30cf590ee98012d905c1bcf53cf82475415c4 |
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font_02_sfnt_off00016ef6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16EF6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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