Malicious PDF — malware analysis report

Static analysis result for SHA-256 66c3c19eacf5d3db…

MALICIOUS

PDF

59.6 KB Created: 2021-03-23 07:34:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: ea552f004467977e205c2ebd58c03e50 SHA-1: 96e154a69a28a741698f5bc64ddcd9bd84938023 SHA-256: 66c3c19eacf5d3db84bd922c94f483ac643c3a7b8a429c98b46e0d2ef8e0c7be
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6619

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://baarspo.ru/award?keyword=lic+amulya+jeevan+823+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384037/normal_5fdc16f452fb6.pdfIn PDF document text
    • https://rivopezip.weebly.com/uploads/1/3/5/3/135325518/fca81176520410.pdfIn PDF document text
    • http://xulodol.mygamesonline.org/golden_song_season_3_ep8.pdfIn PDF document text
    • https://zifofuxe.weebly.com/uploads/1/3/5/3/135386801/tanazixanefufob.pdfIn PDF document text
    • https://nuvefozilif.weebly.com/uploads/1/3/4/7/134733792/2440160.pdfIn PDF document text
    • https://tinabatof.weebly.com/uploads/1/3/0/7/130776088/gapun.pdfIn PDF document text
    • https://pimalikatirowo.weebly.com/uploads/1/3/4/0/134040386/5856818.pdfIn PDF document text
    • https://vujojetusifej.weebly.com/uploads/1/3/1/3/131398487/18c24108007e1e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385204/normal_60589fa959886.pdfIn PDF document text
    • https://makezuxakoje.weebly.com/uploads/1/3/0/7/130739015/1922748.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459631/normal_60344dd5b89ba.pdfIn PDF document text
    • https://xatuzagu.weebly.com/uploads/1/3/0/7/130738971/xekigoxu.pdfIn PDF document text
    • https://sugogovofel.weebly.com/uploads/1/3/1/0/131069978/velazame-xurudonovanij-jofix-lewanuxofoji.pdfIn PDF document text
    • http://fuxezaboxekave.scienceontheweb.net/aws_certified_solutions_architect_exam.pdfIn PDF document text
    • https://s3.amazonaws.com/lupebesu/delete_gmail_account_in_android_mobile.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/kuvuxelalovetuvefefudelo.pdfIn PDF document text
    • https://s3.amazonaws.com/godewumazek/kobodinademexona.pdfIn PDF document text
    • https://s3.amazonaws.com/gazijewevan/1834683116.pdfIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/describe_yourself_in_5_words_best_answer.pdfIn PDF document text
    • http://rorazizaxaf.atwebpages.com/97694431374.pdfIn PDF document text

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