Malicious PDF — malware analysis report

Static analysis result for SHA-256 220a5a49fbf3961e…

MALICIOUS

PDF

54.0 KB Created: 2021-06-10 20:20:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7c8c45c778177b63d6ad14df0d979a2f SHA-1: 7edc7e53972d9eac6c12bbaf61760233bb833b65 SHA-256: 220a5a49fbf3961e334c4c8ba80c1ab873d0b364db4a463f9a529f6a72eae2f4
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 0.5927

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
  • 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://nomylo.ru/pbw?utm_term=tamil+mobile+movies+online PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4401515/normal_6015ec7984f17.pdfIn PDF document text
    • https://pigogiril.weebly.com/uploads/1/3/4/3/134397820/ruvow.pdfIn PDF document text
    • https://foramawebor.weebly.com/uploads/1/3/1/4/131410370/vureruko.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392660/normal_60047f3c2bbef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481695/normal_5fe359caaf629.pdfIn PDF document text
    • https://duzopotubesafes.weebly.com/uploads/1/3/4/8/134890215/792455.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457006/normal_60525185574ca.pdfIn PDF document text
    • https://pigakuri.weebly.com/uploads/1/3/4/6/134684466/84534460a9e.pdfIn PDF document text
    • https://zimatesuti.weebly.com/uploads/1/3/0/8/130873828/542917.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418185/normal_5fe864cd559fa.pdfIn PDF document text
    • https://bederoka.weebly.com/uploads/1/3/4/8/134886295/sezofagof_muzisekanegebaf_radivawegok_fowomul.pdfIn PDF document text
    • https://zifereli.weebly.com/uploads/1/3/4/3/134347484/9af5db57a1799.pdfIn PDF document text
    • https://lenudigibelap.weebly.com/uploads/1/3/7/4/137499492/rutipakuwisopu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448556/normal_6002929853d03.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402721/normal_606aa6adadc31.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449998/normal_5fec13311be3a.pdfIn PDF document text
    • https://wetebaxa.weebly.com/uploads/1/3/4/3/134343617/wivupilokunomugaxuno.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9758b50e-1b23-46ef-ac18-9a378945a5e4/14607321380.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc3ba6ce-5bf0-4d89-8e2f-0036762480df/george_foreman_grill.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdf08248-56f5-44d7-9074-e05e47c9580d/84646922882.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e803e6d-304c-4bd4-88e4-41c8305873a9/77183364795.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7571122a-1fc8-442e-848e-7b0a7e685597/introduction_to_computation_and_programming_using_python_third_edition.pdfIn PDF document text

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