Malicious PDF — malware analysis report

Static analysis result for SHA-256 b49abcdca8ad4fb0…

MALICIOUS

PDF

42.2 KB Created: 2021-09-20 05:06:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 0543f4f682e1bd05d3e79d92539e7ec5 SHA-1: e86d29a4224c26ffdb32bbca6e42399b4ea757a2 SHA-256: b49abcdca8ad4fb0c9114b713a348b2b1edf7e7b42be12ebd846e4a39269fcc3
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-only nature and embedded clickable links. The heuristic 'PDF_IMAGE_LURE' indicates a common tactic where a screenshot hides a malicious link. The numerous external URIs, many hosted on disposable domains, further support this, suggesting a link farm designed to redirect users to potentially malicious content. No scripts were extracted from this sample, but the overall structure points to a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7814

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 42 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 https://oniceh.ru/uplcv?utm_term=antutu+benchmark+of+redmi+note+9s PDF link annotation
    • http://lexxyin.net/files/fckeditor/file/62790537056.pdfIn PDF document text
    • http://smogy.ru/files/files/bovopuziluwiladefeteziw.pdfIn PDF document text
    • http://mnwebdesign.dk/userfiles/file/71730768252.pdfIn PDF document text
    • https://fallsplat.se/bildbank/file/26725694579.pdfIn PDF document text
    • https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/akk82c79r046niiraa82p62ad6/mozenasotapefagi.pdfIn PDF document text
    • http://choragwica.pl/userfiles/file/xaxurepunoladirujuvem.pdfIn PDF document text
    • http://xn--o39a91gvwm83kbsn.com/FileData/ckfinder/files/20210916_CBA35BFC31C34C48.pdfIn PDF document text
    • http://vinhthuanvietnam.com/upload/files/58931409115.pdfIn PDF document text
    • http://furnitura-syndicat.ru/ckeditor/ckfinder/core/connector/php/uploads/files/59751258321.pdfIn PDF document text
    • http://sooclose.eu/upload/File/70937784809.pdfIn PDF document text
    • http://jar-ted.pl/file/36122324938.pdfIn PDF document text
    • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161302555b0b05---webose.pdfIn PDF document text
    • http://nhatminhtrading.vn/app/webroot/uploads/files/6520581125.pdfIn PDF document text
    • https://ww150004.linebot.net/upfile/files/20210918020544.pdfIn PDF document text
    • http://www.pattyn360.com/upload/forum/files/31217955450.pdfIn PDF document text
    • https://ichapps.com/ichapps/ckeditor-ckfinder-integration/uploads/files/pikudexurulerabaneverarot.pdfIn PDF document text
    • http://kerrya.com/ckfinder/userfiles/files/fukunuzifugepugemof.pdfIn PDF document text
    • https://opescom-store.com/uploads/FCK_files/file/52789681662.pdfIn PDF document text
    • https://ambalatender.com/upload/files/zorerani.pdfIn PDF document text
    • https://www.bevillelecomte.com/ckfinder/userfiles/files/54601144235.pdfIn PDF document text
    • http://qbcar.ru/ckfinder/userfiles/files/rafaduvimeperida.pdfIn PDF document text
    • http://kiemdinhcan.com/Images_upload/files/29025150175.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.