Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a19ac8381ba9aee…

MALICIOUS

PDF

48.0 KB Created: 2021-09-09 23:43:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 20d02fdd9aa4355eb6c2c977e3ab300f SHA-1: 201c7372e89e3684118f1823864fd57192a733ec SHA-256: 7a19ac8381ba9aee18860df1d9e77c497847314b820e32ce2358852316bc1d83
124 Risk Score

Malware Insights

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

The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The file contains numerous embedded URLs, with one heuristic specifically identifying it as a link farm on disposable hosting. While the document body is unreadable, the presence of many external links suggests a phishing or redirection attempt to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8987

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://laarakkers.com/ckfinder/userfiles/files/7648726824.pdf In PDF document text
    • http://architettorobertafasola.eu/userfiles/files/75022641658.pdfIn PDF document text
    • https://riosemarescentrodemergulho.com/ckfinder/files/tegom.pdfIn PDF document text
    • https://milliondollardesiclub.com/upload_files/featured/files/fekopeporabewexekusibi.pdfIn PDF document text
    • https://tch.lu/files/files/gowomikujuragifateg.pdfIn PDF document text
    • https://tssch.in/tssch/application/admin/uploads/file/sapudixiwamodozeg.pdfIn PDF document text
    • http://guowangcable.com/d/files/xugilo.pdfIn PDF document text
    • http://vdtonline.vn/static/uploads/editor/files/41265518281.pdfIn PDF document text
    • http://globalcenterhotels.com/bot/ckfinder/uf/files/nukavefasukotaj.pdfIn PDF document text
    • https://imagebeaute.fr/userfiles/file/rumevupo.pdfIn PDF document text
    • https://f2h63c2.ip4secure.net/upload/files/31509615292.pdfIn PDF document text
    • http://pomelieagency.com/userfiles/files/bivanewifimifotavapu.pdfIn PDF document text
    • http://ride.hu/images/uploads/files/99304904527.pdfIn PDF document text
    • http://klemanpince.hu/files/file/25435979915.pdfIn PDF document text
    • http://longarmquiltacademy.net/fckeditor/userfiles/file/donamitobagebapup.pdfIn PDF document text
    • https://sportyou.fr/ckfinder/userfiles/files/lamowapuxivobik.pdfIn PDF document text
    • http://soldearenales.com/galeria/files/bimisoromumavovodevawodom.pdfIn PDF document text
    • http://arebiatours.com/uploads/files/59569220673.pdfIn PDF document text
    • http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/18edadebf334fcd2b3b42cebb933745b/63245007503.pdfIn PDF document text
    • http://belst.by/upload/file/nazaxajukav.pdfIn PDF document text
    • http://ugrctrani.it/userfiles/files/xivokur.pdfIn PDF document text
    • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/d7c635bac565f4957d5a3c6c58e0ac1b/94744745297.pdfIn PDF document text
    • http://donkaew-furniture.com/ckfinder/userfiles/files/76672642160.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=que+es+el+sat+pdfPDF link annotation