Malicious PDF — malware analysis report

Static analysis result for SHA-256 0afa2e9aecb061dd…

MALICIOUS

PDF

35.0 KB Created: 2020-11-04 11:39:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 3a5b8266dd3b06988114e50844950c22 SHA-1: 4e98c2c09a9a95821b7d1c83a3317b5ff9cba479 SHA-256: 0afa2e9aecb061dda6fb452ac8dee342c2828e641f81ab3232c519084399760a
94 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, disguised with text related to free movie streaming. The ML classifier strongly indicates maliciousness. The embedded URL is the primary indicator of malicious intent, likely leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://gettraff.ru/strik?keyword=the+westing+game+full+movie+free+on+youtube In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370089/normal_5f9a06df05e64.pdfIn PDF document text
    • https://kasukironumasex.weebly.com/uploads/1/3/1/4/131454791/e2c6bde.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447669/normal_5f9d854e01ea7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/residential_tenancy_agreement_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ace4acf-c80e-46dc-95db-ba7fc346ed4d/48518188533.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47099ca5-fc7a-468d-bbac-8bcc2a623338/26877853591.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/free_filipino_movies_2020_full_movies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccc5a7d2-e244-4495-bdc8-e870dd47cd21/64912461979.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/chemistry_merit_badge_powerpoint.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/019c5e88-9094-4090-a2aa-ab94cdd2aad9/30000701723.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/823450d8-bf6e-4afe-9e96-f7fcc10e9ac2/sustantivos_en_ingles.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/51562286371.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3dd51b98-8b3e-44a6-85b0-fb15653051d8/28318516865.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_off000048f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48F8 5524 bytes
SHA-256: 084e3169a50194f44e3c5e990545f66b7a4ae60ffaf36294d7a7c3f9f831cd0d
font_01_sfnt_off00005bbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BBC 10236 bytes
SHA-256: 32cdacd63d355c437113b7af162a89c8244cdf1803246925aadb6a5278b4d013