Malicious PDF — malware analysis report

Static analysis result for SHA-256 a196f3bf1acbe1c3…

MALICIOUS

PDF

41.3 KB Created: 2020-10-29 15:44:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f38ac5ccee6c9a79435a5ee2bad3cf97 SHA-1: 2af4a6e34f37f25e057d180ac988af03b0d400c5 SHA-256: a196f3bf1acbe1c3105d931b72f9c9a9478f49d9cc963877122cd3be35baaa4f
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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=types+of+high+heel+material In PDF document text
    • https://cdn-cms.f-static.net/uploads/4407729/normal_5f92494ae09de.pdfIn PDF document text
    • https://gizojobov.weebly.com/uploads/1/3/4/4/134436228/tifeb.pdfIn PDF document text
    • https://nitetezelimon.weebly.com/uploads/1/3/1/4/131438651/wirokuwofubonoderax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367903/normal_5f95880ec8b2c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379237/normal_5f911589eb162.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366659/normal_5f9a3e80dfb8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402000/normal_5f915e90c0520.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/juduk/89726722019.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/pozetulum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/7020/1255/files/sobadixobutegu.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/57487154552.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_off00006237.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6237 5368 bytes
SHA-256: 90d83d10dabf45ec9a0474991b5a68324258ec9127d7d15c25b08a0d6bf33a75
font_01_sfnt_off0000745a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x745A 10732 bytes
SHA-256: 5a952e8503c41258d76991bbc6e68578c572b21b2342dae436170afd4eb0d4d2

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