Malicious PDF — malware analysis report

Static analysis result for SHA-256 63249948d50c093c…

MALICIOUS

PDF

64.0 KB Created: 2021-09-14 03:45:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 03dd48495a72ce08b8fb7046da06ea17 SHA-1: 7e7bc4115fc7047a89561cea2ff22c0dc22ff669 SHA-256: 63249948d50c093c7b6a3282bbbda54aed4fd553e424f8d565e91586614af47c
124 Risk Score

Malware Insights

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

The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous external URIs, many of which point to disposable domains and are structured as a link farm, suggesting a phishing or malware distribution scheme. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6405

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://mtecommerce.it/public/news/file/33442514758.pdf In PDF document text
    • http://recit-de-vie.fr/userfiles/file/54820624470.pdfIn PDF document text
    • http://nhatnamvina.vn/rich_editor/file/zisutus.pdfIn PDF document text
    • https://polytex.de/sites/default/files/rojikukekeze.pdfIn PDF document text
    • http://pomocnaukowa.net/Upload/file/71038634312.pdfIn PDF document text
    • https://directorvincentchow.com/fck_filemanager_upload/file/54760403486.pdfIn PDF document text
    • http://scard.vn/app/webroot/uploads/files/27509400010.pdfIn PDF document text
    • http://dkyangmei.com/uploadfile/file/2021091217323473499.pdfIn PDF document text
    • http://bk-plus.at/userfiles/files/80249652243.pdfIn PDF document text
    • http://104408017.linker.tw/files/navalosadeb.pdfIn PDF document text
    • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613b0e532a89c---58437740247.pdfIn PDF document text
    • http://on-video.com/movies/movie_data/file/95466747935.pdfIn PDF document text
    • https://nepaltrekkinginhimalaya.com/assets/userfiles/files/duvanokikutovamesalet.pdfIn PDF document text
    • http://pzhjintai.com/upload/files/13939766957.pdfIn PDF document text
    • https://zilalcooling.com/other_files/File/zoxarararadesa.pdfIn PDF document text
    • http://rencontres-icare.org/userfiles/file/vutidukudobupe.pdfIn PDF document text
    • http://surmounttravel.com/userfiles/files/gekewitofunekupenudogav.pdfIn PDF document text
    • http://agcslohian.com/userfiles/file/kekalofigodejiwufexexiw.pdfIn PDF document text
    • https://noddy.nu/images/file/27009655307.pdfIn PDF document text
    • http://agppi99.pretty-match.com/upload/files/gitezopo.pdfIn PDF document text
    • https://www.iieng.org/editor/ckfinder/userfiles/files/gawurokik.pdfIn PDF document text
    • http://www.coverseg.com/uploads/ckfinder/files/93679806175.pdfIn PDF document text
    • http://ikkosushi.com/uploads/files/90526213525.pdfIn PDF document text
    • https://doosradashak.in/ci/userfiles/files/tatuseboxaxamopo.pdfIn PDF document text
    • http://unibeauty.com.br/ckfinder/userfiles/files/77088836285.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=crazy+little+thing+called+love+movie+with+english+subtitles+onlinePDF link annotation