Malicious PDF — malware analysis report

Static analysis result for SHA-256 95f322fc5a0728dc…

MALICIOUS

PDF

122.7 KB Created: 2021-02-17 12:13:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: c8c3eb9d295744cb4206b921b0bc055c SHA-1: 0676a3b5b54465275a4074bb7061134ae54eaa4f SHA-256: 95f322fc5a0728dc43f5cad04915ad197ea4ee79631ade6700ae20ebda9116b0
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and ML classifiers, exhibiting characteristics of a link farm with numerous external URIs. The primary heuristic indicates a mass of external PDF links, suggesting a phishing or malware distribution scheme. While no scripts were explicitly extracted, the PDF structure and embedded URIs point towards an attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9178

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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=agno3+%252B+nh3+%252B+nahm PDF link annotation
    • http://monoga.space/bootstrap_kanban_board_templatebgju0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424689/normal_5ffe15d50b3b5.pdfIn PDF document text
    • http://premial.su/26622582497lr6bv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369912/normal_6017288d14238.pdfIn PDF document text
    • https://wukarogokemek.weebly.com/uploads/1/3/0/7/130739107/51685f149.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463266/normal_6009d0566672d.pdfIn PDF document text
    • https://kamapapidez.weebly.com/uploads/1/3/5/9/135962567/verasif.pdfIn PDF document text
    • http://ramuwazezu.22web.org/5_day_workout_routine_at_home.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385198/normal_5fe7c9a125a11.pdfIn PDF document text
    • https://niritopep.weebly.com/uploads/1/3/4/6/134634222/wabaziditufunez.pdfIn PDF document text
    • https://tefegepivovopuf.weebly.com/uploads/1/3/5/3/135311357/kafegovaxisakekumif.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/fuziwofakun.pdfIn PDF document text
    • http://didaduxazej.epizy.com/cold_war_events_and_policies_chart_answers.pdfIn PDF document text
    • http://monufojama.rf.gd/35294338297.pdfIn PDF document text
    • https://s3.amazonaws.com/jigezilor/chip_avira_android_kostenlos.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/external_stylesheet_html.pdfIn PDF document text
    • https://s3.amazonaws.com/wifukedot/rufukejusunivotapu.pdfIn PDF document text

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