Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c0255133ad8af23…

MALICIOUS

PDF

56.7 KB Created: 2021-05-13 12:40:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2a8981afc2d1dacd843f184c1804c66c SHA-1: de76be22d0d42aa631c96c6276f1c7d19c1aa437 SHA-256: 0c0255133ad8af236678726be5dfad8e71d07b4c50acb44da21e05a4b43fb75c
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 0.9404

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://leonvi.ru/strik?utm_term=how+to+draw+a+cartoon+kid+step+by+step PDF link annotation
    • http://fuxuxixigu.scienceontheweb.net/ikea_catalogue_2020_download.pdfIn PDF document text
    • https://cdn.sqhk.co/jawuraxexije/So4xlhc/ravalokotavamanuxawujodin.pdfIn PDF document text
    • http://zutumufedige.getenjoyment.net/atlantic_codex.pdfIn PDF document text
    • http://runojiwum.getenjoyment.net/zumirubujobuvikipi.pdfIn PDF document text
    • http://gibelepij.scienceontheweb.net/managerial_accounting_mcqs_with_answers.pdfIn PDF document text
    • https://lewofadexireg.weebly.com/uploads/1/3/4/8/134868993/a0a6a2b7a9f0ce.pdfIn PDF document text
    • https://cdn.sqhk.co/zimidenex/cn5R9gd/campus_date_sim.pdfIn PDF document text
    • http://fullpisetc.ru/roritugojesovederorz6cvo.pdfIn PDF document text
    • http://winnerslm.space/7582907552im4cq.pdfIn PDF document text
    • https://cdn.sqhk.co/gigatakel/TSchcii/boulangerie_patisserie_paris_11.pdfIn PDF document text
    • http://sutiboju.sportsontheweb.net/gibulemab.pdfIn PDF document text
    • http://blockingscenery.com/kitisu334de.pdfIn PDF document text
    • http://jotafitosixa.getenjoyment.net/78788133494.pdfIn PDF document text
    • https://cdn.sqhk.co/pubodegosog/qjeTxx1/revow.pdfIn PDF document text
    • http://sutobep.getenjoyment.net/34317718276.pdfIn PDF document text
    • http://xonejalevesezom.sportsontheweb.net/43753627242.pdfIn PDF document text
    • https://salexutoxor.weebly.com/uploads/1/3/4/7/134761189/5482874.pdfIn PDF document text
    • https://cdn.sqhk.co/pubodegosog/ghgdTha/free_ringtones_for_android_phone_ringing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b89bfd8-152e-41d0-8539-f059ee539435/23173265975.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81632cb8-f5de-4c3e-8717-eb8642458db1/malobumajefi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c43bb5b2-bf1d-4531-8c75-079a8d7e2cc6/how_to_get_history_of_commands_in_command_prompt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a7da6ea-3b58-4012-a357-bd526a2cbb84/77752901685.pdfIn PDF document text