Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2e393af04a56992…

MALICIOUS

PDF

62.7 KB Created: 2020-12-22 08:09:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 53fd91cd7e1d3a1954236645e1846382 SHA-1: d1f2d318c2ac4e5576b86fe5add24ce295b851b5 SHA-256: b2e393af04a5699268012d917ff288edbdddb6e9e22983ac55276c1021767c82
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File T1059.007 JavaScript

The PDF file contains a lure suggesting the user needs to install a browser extension or update to view content, a common social-engineering tactic. It also links to a known malicious redirector infrastructure at 'ggtraff.ru'. ClamAV detection and ML classification further indicate malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://ggtraff.ru/strik?utm_term=funny+movies+to+watch+with+friends+on+netflix In PDF document text
    • https://static.s123-cdn-static.com/uploads/4387711/normal_5fc6adcc74914.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380528/normal_5f922ae85859d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475216/normal_5fd2cff5a67ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377371/normal_5fa465a13c707.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374009/normal_5f88cbd2b37ea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383804/normal_5fca3db3e7ecb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391620/normal_5fe145313f5f8.pdfIn PDF document text
    • https://wanuzixa.weebly.com/uploads/1/3/1/4/131482886/c81007c4cc06ac9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376599/normal_5f98eefade765.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389823/normal_5f9fe31324548.pdfIn PDF document text
    • https://vufizirisabewi.weebly.com/uploads/1/3/4/4/134443644/bejapu-zonudivizared-latuderaru-vomitenodaxosav.pdfIn PDF document text
    • https://kikeletiwemuk.weebly.com/uploads/1/3/4/6/134671512/83b61fd6328.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/gogunabones/bikadanogidonupuvasega.pdfIn PDF document text
    • https://s3.amazonaws.com/takurugilij/38951769821.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_off0000b97d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB97D 5536 bytes
SHA-256: 2d612fd9c24427fe9414e4ad27b4b0d16072f358585b0c39e92016c350a8d168
font_01_sfnt_off0000cc47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC47 9756 bytes
SHA-256: 1c15d78df15adf6e12b1656798f7e911d78b30b2f8053008ab15992e8ee90e24

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