Malicious PDF — malware analysis report

Static analysis result for SHA-256 c475c0917ec8a5df…

MALICIOUS

PDF

163.4 KB Created: 2021-03-25 12:53:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 1e43cdd43780eb74a40f94a0638a8128 SHA-1: 7cfb62be920ed74f5f4fb77bc03e5d8905b13283 SHA-256: c475c0917ec8a5dfcca152893c532301c1ef4e2647114ffe90c8d53d28c54848
124 Risk Score

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 0.9807

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://xajibur.ru/award?keyword=reducing+behavior+problems+in+the+elementary+school+classroom+pdf PDF link annotation
    • http://pomulagija.iblogger.org/30169730101.pdfIn PDF document text
    • http://italdom.fun/nsfw_subreddits_411380t9.pdfIn PDF document text
    • http://ebay-coupon.ru/8184144322fmnps.pdfIn PDF document text
    • http://shoop-fl.ru/ldpe_bags_manufacturing_project_report2lbv3.pdfIn PDF document text
    • http://jadenefabive.iblogger.org/dubarovulosuwifopi.pdfIn PDF document text
    • http://damvglaz2.xyz/joseph_campbell_the_power_of_myth_fullayrgd.pdfIn PDF document text
    • https://bemazinava.weebly.com/uploads/1/3/4/8/134890863/kovulix_jukigilini.pdfIn PDF document text
    • https://wixinuwexe.weebly.com/uploads/1/3/0/7/130739185/735c66.pdfIn PDF document text
    • https://cdn.sqhk.co/vusunuvaka/jFsJ1gc/97085570101.pdfIn PDF document text
    • https://zodixezujiz.weebly.com/uploads/1/3/5/3/135345824/fabekunanuduxug_kazop.pdfIn PDF document text
    • https://cdn.sqhk.co/nimenodeloxa/0xDiiKy/48587382807.pdfIn PDF document text
    • https://fafetomipisiso.weebly.com/uploads/1/3/4/6/134603542/3653641.pdfIn PDF document text
    • https://nurosizakudagag.weebly.com/uploads/1/3/4/6/134699554/wexijedir.pdfIn PDF document text
    • http://niludop.22web.org/breakfast_at_tiffany_s_analysis.pdfIn PDF document text
    • https://cdn.sqhk.co/jatobeguji/ZPibghf/zasofulobovapamogisab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79fc476b-cb82-4bc3-99c2-2a316b703dbb/how_to_use_pack_and_play_bassinet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e47370b-03bb-4528-838b-41ad49d547f9/specialized_bike_computer_manual_sport.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f62ac50c-afab-4754-b28c-0dcadded5398/15228245679.pdfIn PDF document text
    • http://xepalufozakot.epizy.com/template_powerpoint_gratis_menarik.pdfIn PDF document text
    • http://gazozan.epizy.com/72829831479.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee8deeb7-6894-45a5-ba60-fb5660af252b/71624315738.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d47d651-c41d-4405-b298-6e1a5718ba5e/21538706956.pdfIn PDF document text