Malicious PDF — malware analysis report

Static analysis result for SHA-256 b404f5033021f88a…

MALICIOUS

PDF

68.1 KB Created: 2020-12-20 07:11:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 247e0afd6002c74ac0d3f7e202bed157 SHA-1: b990319e90f9224ed406fe942bff2407d1af7003 SHA-256: b404f5033021f88aa362711020c7e26a7083fffaf11b27c5c8b907daa41a1501
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URL pointing to 'trafftec.ru', which is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains text related to 'Black and decker appliances warranty', suggesting a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafftec.ru/123?utm_term=black+and+decker+appliances+warranty
    • https://cdn-cms.f-static.net/uploads/4385030/normal_5f9d8c98a1357.pdf
    • https://cdn-cms.f-static.net/uploads/4369665/normal_5fa91e9f6bdbd.pdf
    • https://cdn-cms.f-static.net/uploads/4384820/normal_5fd644a406784.pdf
    • https://cdn-cms.f-static.net/uploads/4366339/normal_5f879d5ebedee.pdf
    • https://cdn-cms.f-static.net/uploads/4406455/normal_5fa01612b6140.pdf
    • https://cdn-cms.f-static.net/uploads/4454419/normal_5fade8b6aa7fd.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static1.squarespace.com/static/5fc77e71717a0f60c403af1c/t/5fc80a80f2e15879767d8a6c/1606945409824/xupuzugugo.pdf
    • https://uploads.strikinglycdn.com/files/6f3e0b9e-f21c-419b-9c3b-50777fdb2261/14703852428.pdf
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe075918e72e5fdb9dc872/1606289243522/loopholes_of_real_estate.pdf
    • https://s3.amazonaws.com/xulepiwa/89078067804.pdf
    • https://uploads.strikinglycdn.com/files/2703829b-6aa2-4479-a2d1-d089b01093c9/dell_xps_15_laptop_user_manual.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb8b.bin
e06861bb978fddeab4f278542ae943d0966107e95c1478fc335bf3aa5912cb78		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB8B 5376 bytes
font_01_sfnt_off0000ddfb.bin
3ff218fb9c4db3b68f438e78eaf79b60bccb31da964a5f0fbe94548e0ad84b89		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDDFB 11008 bytes

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