Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1a63a682bdf2d3a…

MALICIOUS

PDF

72.6 KB Created: 2021-09-08 18:47:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: e7417670f4205344a171d6637634fa3b SHA-1: cdc3116808a5d8ccc980726544d2b8015c10d271 SHA-256: e1a63a682bdf2d3a66d6e591a14724cb7e446e49439551e11899600a964f3926
94 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV with a critical heuristic firing for Pdf.Phishing.Trojan. The PDF contains numerous embedded URLs, with one heuristic specifically flagging it as a link farm on disposable hosting. The document body is heavily obfuscated, preventing a clear understanding of its direct content, but the presence of multiple external links strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3403

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://naviway.su/upload/files/56943431513.pdf In PDF document text
    • http://wuyioutdoor.com/userfiles/file/63337221912.pdfIn PDF document text
    • http://audidalys.lt/ckfinder/userfiles/files/44225040696.pdfIn PDF document text
    • https://alakharia.com/public_html/userfiles/file/51832445804.pdfIn PDF document text
    • http://ristorantebiscione.com/userfiles/files/vurofuw.pdfIn PDF document text
    • http://3gr-group.com/ci/userfiles/files/dimigoleponabumakekoka.pdfIn PDF document text
    • http://siddharpeedam.org/userfiles/file/In PDF document text
    • https://augsburger-dartliga.de/uploads/file/54929750905.pdfIn PDF document text
    • http://bm-shower.com/userfiles/files/saxatejodijiwi.pdfIn PDF document text
    • http://newtrichur.com/userfiles/file/6514003454.pdfIn PDF document text
    • http://dxqzx.com/ckfinder/userfiles/files/20210903_214458.pdfIn PDF document text
    • https://yukkumpulgroup2.com/contents/files/92992511517.pdfIn PDF document text
    • https://ms01bet.com/contents/files/14670380895.pdfIn PDF document text
    • https://shreenathtechnologies.com/userfiles/file/6677008294.pdfIn PDF document text
    • http://seanmore.com/userData/board/file/21624167682.pdfIn PDF document text
    • http://yongqingtech.com/d/files/lufefebikutexazibijasuka.pdfIn PDF document text
    • https://durimawar.com/contents/files/11871319746.pdfIn PDF document text
    • http://print-printonline.com/ckfinder/userfiles/files/52833587529.pdfIn PDF document text
    • https://quasar.mago.ro/ckfinder/userfiles/files/27192558683.pdfIn PDF document text
    • https://www.rapn.ru/ckfinder/userfiles/files/15893281566.pdfIn PDF document text
    • https://amrapalispot.com/userfiles/file/76172136567.pdfIn PDF document text
    • http://maidichike.com/upload/files/90352079025.pdfIn PDF document text
    • https://www.nevjegykiraly.hu/userfiles/files/39530405471.pdfIn PDF document text
    • https://aymsoft.us/aym_image/files/5218113066.pdfIn PDF document text
    • http://infas.cz/images/wiswig/file/kijogivirisodox.pdfIn PDF document text
    • https://invest.pl/userfiles/file/31219145632.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=anexion+de+centroamerica+a+mexico+pdfPDF link annotation