Malicious PDF — malware analysis report

Static analysis result for SHA-256 29a897f7c1010607…

MALICIOUS

PDF

63.6 KB Created: 2021-09-23 23:46:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 519d34c79bea897402f4798c0977428e SHA-1: ca3083793a4828bdcc804448a983757099306a8e SHA-256: 29a897f7c1010607b649b0b68b3879687da37e7294c8511269590208e1eb02c1
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample is a PDF file flagged by multiple heuristics, including ML classification and ClamAV, as malicious. It contains a large number of embedded URLs, many of which are hosted on disposable domains, suggesting a link farm designed to redirect users to potentially malicious content or phishing sites. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic specifically indicates this behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8566

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One 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://huntic.ru/uplcv?utm_term=roville+roblox+houses PDF link annotation
    • https://vespaclubcagliari.com/userfiles/file/78544780018.pdfIn PDF document text
    • http://taispacedesign.com/upload/files/77511992641.pdfIn PDF document text
    • http://saharun.org/uploads/ckfinder/userfiles/files/fuxilolidatuvafolixik.pdfIn PDF document text
    • http://nineslash.com/user_file/file/ginuruzozovaku.pdfIn PDF document text
    • http://artediapharma.com/upload/files/72270062613.pdfIn PDF document text
    • http://graficaeformazione.it/userfiles/file/nimafobiwepegozini.pdfIn PDF document text
    • https://badoza.net/userfiles/file/43947420301.pdfIn PDF document text
    • https://bizimpin.com/calisma2/files/uploads/rerobi.pdfIn PDF document text
    • http://saltokisport.com/uploads/files/dupalowetuwewuvimisas.pdfIn PDF document text
    • https://ijpdua.com/contents/files/14831634733.pdfIn PDF document text
    • http://thienlongadv.com/upload/files/tasipabevadugupobudogime.pdfIn PDF document text
    • http://orbitsecurity.qa/pro_mvp_tech/uploads/file/77619493778.pdfIn PDF document text
    • https://basundharamart.com/userfiles/file/xusoxopukik.pdfIn PDF document text
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146895f70cd5---sozutezidorurojeripetazig.pdfIn PDF document text
    • https://safe-international.com/userfiles/file/gejumosanadevotiwirugiga.pdfIn PDF document text
    • http://aotwresort.info/ckfinder/userfiles/files/jepubedijetawedolawoviwu.pdfIn PDF document text
    • http://montoaneli.com/ckfinder/files/53334211433.pdfIn PDF document text
    • https://delcinfo.ru/img/files/files/zusuno.pdfIn PDF document text
    • https://www.stock2morrow.com/ckfinder/userfiles/files/vobunofuva.pdfIn PDF document text
    • http://www.radanhorse.com/resource/files/fodimanezewozokulawusuru.pdfIn PDF document text
    • http://scouttautomotive.com/editor_uploads/system/files/xasuk.pdfIn PDF document text
    • https://masukpt2.com/contents/files/nodudenozokesukuwowowi.pdfIn PDF document text
    • https://daotaolaixesontay.com/uploads/file/70745448052.pdfIn PDF document text
    • https://spa-salon.ru/ckfinder/userfiles/files/kaduzizoli.pdfIn PDF document text
    • http://rc-saty.cz/gais/image/file/51832981930.pdfIn PDF document text
    • http://fitviewer.biz/files/file/zalug.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e26a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE26A 10296 bytes
SHA-256: e445b3c8fdd3e107db42b7f32dc52367f5f8c4e25dad998adc4c302585a1e825

Open this report in the interactive analyzer, or submit your own file for analysis.