Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c374d911afe395b…

MALICIOUS

PDF

50.6 KB Created: 2021-02-24 01:48:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 0246861244c23e67482af1ebdbce56b8 SHA-1: 6857ba34fb9e359d1e5ee9df287101c6f96dfbd3 SHA-256: 2c374d911afe395b7e009942e3b351c2e15e16cfff219d360ca00e0e081078b0
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

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 0.7338

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://crophysi.ru/aws?utm_term=what+are+the+types+of+alienation PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4489722/normal_5fd9314657947.pdfIn PDF document text
    • https://cdn.sqhk.co/xumesapaxoku/hiljiO4/38275294336.pdfIn PDF document text
    • http://prizinsta24.space/rikaraxiibekq.pdfIn PDF document text
    • http://getcreditcheck.info/dir-890l_dd-wrt_download3mq20.pdfIn PDF document text
    • https://cdn.sqhk.co/kufalavoxig/fhaihcO/60531826027.pdfIn PDF document text
    • http://buloshnaya.site/gefibomalae6to1.pdfIn PDF document text
    • https://cdn.sqhk.co/rikopekela/bzhcHjh/tujikigufipug.pdfIn PDF document text
    • https://cdn.sqhk.co/pugirunosamo/jg0hdhk/67847699024.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387819/normal_601701221f96f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472182/normal_5fd8254e3b9da.pdfIn PDF document text
    • http://harmony-market.ru/how_to_download_minecraft_maps_on_psmqevf.pdfIn PDF document text
    • https://lojopozubog.weebly.com/uploads/1/3/1/6/131606756/wugofogujide-vomudibimamaper.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367273/normal_5fedcc76ebe24.pdfIn PDF document text
    • https://s3.amazonaws.com/kafises/a_room_with_a_view_1985.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/283680073.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/kofazorexubabezepegi.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/spiderman_hd_wallpaper_for_mobile.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/96812666150.pdfIn PDF document text

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