Malicious PDF — malware analysis report

Static analysis result for SHA-256 62eb54371b54869a…

MALICIOUS

PDF

97.5 KB Created: 2021-05-14 10:15:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a2d46a10a56755deb93df695a93bc41 SHA-1: a611559abdb5570b942bc033ab1ada01aed7ee39 SHA-256: 62eb54371b54869ae22ec374df0833825a0bd6c582bdae61690fe8bda1ec9242
154 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a link farm, designed to redirect users to potentially malicious sites. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing trojan. The primary attack pattern involves exploiting user trust through a deceptive document to lead them to external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9543

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/strik?utm_term=toastmasters+table+topics+rules
    • http://buytoday.cc/5904224612touao.pdf
    • https://zusikazokek.weebly.com/uploads/1/3/1/4/131453156/gemadejarumapa.pdf
    • https://jegetujo.weebly.com/uploads/1/3/5/3/135300600/4957445.pdf
    • https://cdn.sqhk.co/bozadukopufu/XTgiicS/91100499754.pdf
    • https://cdn.sqhk.co/guvevifowo/iepiaST/funny_sms_ringtones_for_android_free_download.pdf
    • https://lipuxavevafip.weebly.com/uploads/1/3/1/3/131398459/a378933d1.pdf
    • https://joverukaded.weebly.com/uploads/1/3/4/4/134433057/77c074407.pdf
    • https://cdn.sqhk.co/wafavalufa/ibwdjgh/rewavedekemetolex.pdf
    • https://cdn.sqhk.co/konosoka/cWhad9C/rec_screen_recorder_video_editor_screenshot_apk.pdf
    • http://sberbank.link/bepir99ebl.pdf
    • https://cdn.sqhk.co/zirevazul/kgfxhhZ/60_sec_santa_run_3.pdf
    • https://cdn.sqhk.co/malevevipali/Z3ghKhi/87199295642.pdf
    • https://cdn.sqhk.co/pubodegosog/dnH2jaB/84338542402.pdf
    • https://uploads.strikinglycdn.com/files/e094c104-631c-4159-9086-8efcf2ee6882/45749778916.pdf
    • http://bejegexojadivaj.epizy.com/placement_report_iit_bombay.pdf
    • https://uploads.strikinglycdn.com/files/92505925-856b-4d35-9024-7bb05895852b/26978640896.pdf
    • https://uploads.strikinglycdn.com/files/e59d73fb-9e73-446f-8091-b1ff92d03526/what_is_scanner_explain_omr_ocr_micr_in_hindi.pdf
    • http://javunaxonifuz.rf.gd/63897310422.pdf
    • https://uploads.strikinglycdn.com/files/b0244df2-8e81-41be-81b8-d24af90aab85/maxufomu.pdf

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