Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e0d8e0ec555974c…

MALICIOUS

PDF

60.9 KB Created: 2021-09-20 11:46:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: d46db20777e3d97af92179c897a37364 SHA-1: e68c39bea3471b4cd896449b28e084c05b3d49e0 SHA-256: 0e0d8e0ec555974c512d613aeee71b9983de03c714d6525933e517c42032c718
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded URLs, with a critical ClamAV detection indicating it is a phishing trojan. Heuristics also point to a link farm on disposable hosting, suggesting a lure to download further malicious content. No scripts were extracted, but the overall structure and URL distribution strongly indicate a malicious intent to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5042

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 http://gz-chengeng.com/uploadfile/files/kobixerasopo.pdf In PDF document text
    • https://cupanghitam.com/contents/files/zivuzozok.pdfIn PDF document text
    • http://biaikatolikus.hu/files/file/67040069440.pdfIn PDF document text
    • http://pcccmiennam.com/media/ftp/file/xakinijapatedudijam.pdfIn PDF document text
    • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142b75929847---68733978401.pdfIn PDF document text
    • http://healingtown.org/userData/board/file/lujepe.pdfIn PDF document text
    • http://zatoodesign.com/userfiles/files/dubimupizimaguzuze.pdfIn PDF document text
    • https://dailyiat.com/html_upload/file/65840926732.pdfIn PDF document text
    • http://versobrokers.eu/userfiles/files/18524061726.pdfIn PDF document text
    • https://chokysitohang.com/Uploads/userfiles/files/nejupifomoz.pdfIn PDF document text
    • http://tinavaron.com/ckfinder/userfiles/files/begemus.pdfIn PDF document text
    • https://northwestconvention.cz/data/files/novowusuvebax.pdfIn PDF document text
    • http://filippodelvita.com/demo/userfiles/file/15410128853.pdfIn PDF document text
    • http://aptwash.com/userData/ebizro_board/file/98240542835.pdfIn PDF document text
    • https://plagij.at/ckfinder/userfiles/files/wenije.pdfIn PDF document text
    • http://agama-rc.com/upload/files/loretati.pdfIn PDF document text
    • https://derechosenred.org/aym_image/files/20246690470.pdfIn PDF document text
    • https://rolcsi-bau.hu/userfiles/files/50248647081.pdfIn PDF document text
    • http://gsprojekt.eu/userfiles/files/82254474149.pdfIn PDF document text
    • http://mastervgtour.by/var/upload/file/62731143605.pdfIn PDF document text
    • http://mbfeed.vn/upload/files/lefemufakejege.pdfIn PDF document text
    • http://samtekelektrik.com/files/461748960.pdfIn PDF document text
    • https://profm.hu/files/file/migug.pdfIn PDF document text
    • https://tradingcall.in/ckfinder/userfiles/files/fiverinigapesefojexe.pdfIn PDF document text
    • https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fc1f4605d8---kizujirafarixezixaje.pdfIn PDF document text
    • http://kisito.com/userfiles/file/63702797065.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=the+plant+cell+basic+structurePDF link annotation
    • 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_off0000cc01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC01 16852 bytes
SHA-256: 8a81d89fceb80edd6dde2fe5dced466105c72b048d1eb3feca5edb6334ef0467

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