Malicious PDF — malware analysis report

Static analysis result for SHA-256 4228a31ef2c53fb4…

MALICIOUS

PDF

42.5 KB Created: 2020-10-10 13:10:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 5ea47db44402842010bb82235f0ac6bb SHA-1: 2c8a8cc345a335278be8cea0aa62a6a19bb155c0 SHA-256: 4228a31ef2c53fb4ce461a561581bf112137cda59aa2ef0355e0a67922cac143
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains embedded links that redirect to a malicious URL, likely as part of a phishing or scam campaign. The document body itself contains text related to watching a movie online, which serves as a lure. The presence of numerous external PDF links suggests a link farm intended to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://cctraff.ru/strik?keyword=lady+and+the+tramp+2+watch+online+fr In PDF document text
    • http://files.upegroup.com/uploads/1/3/0/9/130969942/981e01587.pdfIn PDF document text
    • http://nomefati.ashlandnaz.org/uploads/1/3/1/4/131452836/vofikakidetipewepup.pdfIn PDF document text
    • http://degeviti.mankinstudios.com/uploads/1/3/0/8/130873848/2819442.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8320bd0-a74d-4568-a63b-404981d8a019/91312999230.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c1d8f1f-d673-4c3a-843f-5ee6c86cfc79/39640352718.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa13c7ee-d52d-43f6-8aa9-b46a38483247/wawuzezunozovumawufepagu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcf0f8f2-f460-45f2-8613-f7bc1156c9aa/razaloro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a251c395-c562-49d8-87ba-8a6e7c3f14e6/52648400850.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf095e53-bcf0-4d34-ab45-9fa4c9a00a61/dulakolewakoke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2a5b563-468a-48b0-9887-ef570c924556/modabeturu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07ef6cb4-ec6b-47d8-85b3-f942e386b735/xuravoxurobuvi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c2cc567-dae6-45f1-8c3e-3b423b5caba2/66412635718.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/553ed757-e066-46df-9f93-445f82835664/41278229263.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/644a78ed-3371-4b56-8fbe-2b324392a58d/vonoxufezunowaxepitaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a718f158-7256-41a8-b7f7-4af37c7e6370/76250300088.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8127d251-c642-403c-9d36-bb4363422420/tofuzomi.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66BB 5484 bytes
SHA-256: 9480d64c3ce61e8f6884d61c783b88e154c13d5d42798cb5039b6fc5038d346a
font_01_sfnt_off0000794f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x794F 10476 bytes
SHA-256: 3b5f954af42dd178e527c7bd659ac3e564827a7fc531bfb9baac01a38f72e1b0

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