Malicious PDF — malware analysis report

Static analysis result for SHA-256 1449ba6a0894ee7f…

MALICIOUS

PDF

40.1 KB Created: 2021-09-13 03:02:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-04
MD5: 1fe97e2a9eb73726c640c43ac158a4e1 SHA-1: 13b303aab86bba8324e2ff6a975a7f1467c3823c SHA-256: 1449ba6a0894ee7f5661b8760c41e1961aedd85d35e6e00e6a3540322d896a55
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9029

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 40 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130cc109b095---86686670210.pdf In PDF document text
    • http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612fdb786f789---3264776439.pdfIn PDF document text
    • https://poganyvolgyi.hu/userfiles/file/lirare.pdfIn PDF document text
    • http://chinastom.ru/userfiles/file/42302018197.pdfIn PDF document text
    • https://emartdeko.pl/galeria/file/67459696181.pdfIn PDF document text
    • http://mgrima.com/files/file/15129866780.pdfIn PDF document text
    • https://atputasbaze.lv/images/userfiles/files/75891461343.pdfIn PDF document text
    • https://bursakaynak.com/userfiles/file/86946337645.pdfIn PDF document text
    • http://yossy.biz/userfiles/file/nuwukin.pdfIn PDF document text
    • http://chemicalengineers.ie/images/44981974613.pdfIn PDF document text
    • http://jeykrishnaclub.com/images/file/vimilefudewatezaxotadoki.pdfIn PDF document text
    • http://1yunnan.com/ckfinder/userfiles/files/lilupewupopipove.pdfIn PDF document text
    • https://olterus.org/contents/files/zotef.pdfIn PDF document text
    • http://mikailang.com/userfiles/file/20210904130909_523459965.pdfIn PDF document text
    • http://pantanalmsnews.com.br/ckfinder/userfiles/files/vizulisirixepiwavewir.pdfIn PDF document text
    • https://coastalstudio.com/images/main/file/61771476653.pdfIn PDF document text
    • https://office-agglo-larochelle.fr/userfiles/file/2424555744.pdfIn PDF document text
    • http://grimastone.ru/files/83345319545.pdfIn PDF document text
    • http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/92747069446.pdfIn PDF document text
    • http://net-work.cz/data/file/giwarixewitadabavinukipak.pdfIn PDF document text
    • http://autofox.lt/ckfinder/userfiles/files/54706055516.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=ubah+font+android+seperti+iphonePDF link annotation