Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca3220180b43bab9…

MALICIOUS

PDF

52.6 KB Created: 2020-12-24 22:04:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 9b2065eb2f97ab96096616de6ae62d4b SHA-1: 90df7cbf01dc04f7ad5d39b3d2cb4db38e345366 SHA-256: ca3220180b43bab92f81939a960c735e08b334c1b8e9f1406a5feda629a071b4
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous embedded links, with one specifically identified as a malicious redirector. The presence of multiple links hosted on disposable domains and the ML classifier flagging it as malicious strongly suggest a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent, likely leading to credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7021

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffine.ru/aws?utm_term=excursion+tv+channel+guide In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366995/normal_5fd7cf1943835.pdfIn PDF document text
    • https://bisitewo.weebly.com/uploads/1/3/4/4/134496646/fifug-xunupuxase-lekowamifip-tinapiban.pdfIn PDF document text
    • https://cdn.sqhk.co/kurapobal/R1ykM0f/airline_tycoon_online_3.pdfIn PDF document text
    • https://cdn.sqhk.co/zusisoko/bLZ6Hid/rejox.pdfIn PDF document text
    • https://kojovade.weebly.com/uploads/1/3/4/6/134681743/43a734de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377704/normal_5f9a5e86a9d4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492580/normal_5fbfb3cde624c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443814/normal_5fdbdf121fdc9.pdfIn PDF document text
    • https://viwuwobigoku.weebly.com/uploads/1/3/1/3/131378942/tefidasixenabi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381083/normal_5fd76b2a33d30.pdfIn PDF document text
    • https://cdn.sqhk.co/pupevadojas/jiimUhe/fr_legends_decal_codes_2019.pdfIn PDF document text
    • https://nelovemisero.weebly.com/uploads/1/3/4/3/134347795/3aef660bfba89c.pdfIn PDF document text
    • https://cdn.sqhk.co/jalizovi/iijgjiy/dark_sword_2_mod_apk_latest_version.pdfIn PDF document text
    • https://matekulelesij.weebly.com/uploads/1/3/4/8/134858821/vemenab.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/depiguxixun.pdfIn PDF document text

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