Malicious PDF — malware analysis report

Static analysis result for SHA-256 5080cb6d0f811178…

MALICIOUS

PDF

43.5 KB Created: 2020-10-23 08:58:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 14de755285b8e4fd4e0919b2c6a6d9cb SHA-1: 1a11a42298a173db7d641ce32b346c1afb35a69e SHA-256: 5080cb6d0f811178cb0966336ca8dae2d81c50574f80bca95bf8a09d4062fdf3
154 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify and other domains, likely for SEO manipulation. One critical finding is a link to a known malicious redirector, indicating a potential phishing or malware distribution attempt. Although no scripts were extracted, the presence of malicious redirector links and the ML classifier's high confidence suggest a malicious intent, possibly related to spearphishing.

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://gettraff.ru/wb?keyword=avensis%202006%20manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369909/normal_5f87edc77718a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374978/normal_5f8fcabe50270.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365606/normal_5f872c8f1bb9f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375889/normal_5f8a2a1a868aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378152/normal_5f8a8e7a44675.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371247/normal_5f8b65ace0388.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371023/normal_5f91443058f3d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366664/normal_5f872e7d04716.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/free_geometry_workbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2578/3190/files/infantino_wrap_and_tie_baby_carrier_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5235/2159/files/47983096447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/1132/6119/files/myles_munroe_books_on_leadership.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/kixefiwunani.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/kondisi_ekonomi_indonesia_saat_ini.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/73218062328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/9929/4363/files/bebewupesukovuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2096/6298/files/bezum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6342/7751/files/gestalt_principles_of_perceptual_organization.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/1058/7291/files/kivines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0120/0288/files/popular_woodworking_magazine_archive.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_off000063ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AC 5212 bytes
SHA-256: f768564fada4d1051942466cdee65228ec2e0a1ae2a5e4d65a7c29f6ed021bf1
font_01_sfnt_off00007559.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7559 13792 bytes
SHA-256: 8d9a351e374734d498863fbf5b8af8bf1096d5e840bcb9269fb43fd2f117c64b

Open this report in the interactive analyzer, or submit your own file for analysis.