Malicious PDF — malware analysis report

Static analysis result for SHA-256 654dfa1f7e8ad252…

MALICIOUS

PDF

62.3 KB Created: 2021-03-03 23:01:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 92add4348ec35b57b9dc317a42da5bdf SHA-1: bb6b8fb214e68453433c67661f72a044e22c1f5d SHA-256: 654dfa1f7e8ad2528506a64602c5a1c0947e20928da1e0734a2e5a4d22848fcf
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many pointing to disposable hosting, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. The document body, though heavily obfuscated, appears to be a deceptive lure related to product information, designed to drive users to external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9522

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 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://midufefew.ru/award?keyword=how+much+does+the+proform+hybrid+trainer+weight PDF link annotation
    • https://sowematawenuw.weebly.com/uploads/1/3/1/1/131164153/9208244.pdfIn PDF document text
    • https://cdn.sqhk.co/goxufime/iegjcnu/mini_basketball_hoop_diy.pdfIn PDF document text
    • https://dedodewoluxo.weebly.com/uploads/1/3/4/4/134402612/dd8b016f4b0d09.pdfIn PDF document text
    • https://xenesadu.weebly.com/uploads/1/3/0/7/130739949/3556311.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460966/normal_5fc9f60565560.pdfIn PDF document text
    • http://teasmall.space/jutazafugenodufu6mvwp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415946/normal_6015c960006d5.pdfIn PDF document text
    • http://cuzinfo.ru/83915387451ny2q6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451565/normal_5ffb86cf4752e.pdfIn PDF document text
    • http://dayzcommunity.info/fuxibezobufmcxe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381766/normal_5ffc13e7d37ce.pdfIn PDF document text
    • http://nuseterowit.iblogger.org/40763901183.pdfIn PDF document text
    • https://xonalofogikovor.weebly.com/uploads/1/3/4/3/134372302/rovasogezinidim_saruxum_lovafatekere_numutir.pdfIn PDF document text
    • http://welegovejebiwun.epizy.com/35094132854.pdfIn PDF document text
    • http://batalogafoma.epizy.com/scrapy_vs_beautifulsoup_performance.pdfIn PDF document text
    • http://fabomisibis.rf.gd/kapusawokameweturafagotos.pdfIn PDF document text

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