Malicious PDF — malware analysis report

Static analysis result for SHA-256 7784aea7bfd412e8…

MALICIOUS

PDF

73.5 KB Created: 2020-11-26 06:40:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a6fb6a1ff318bfbd59099f4e51378b42 SHA-1: 256862466599c6e2e0b6d04fff11a255600691d2 SHA-256: 7784aea7bfd412e8c078fb22ed3d846095f9be0b56b27e2c967bd797c2c64067
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'traffnew.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to technical diagrams, consistent with phishing tactics.

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://traffnew.ru/strik?utm_term=draw+tite+brake+controller+wiring+diagram PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4489595/normal_5fbcaaab6add5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476272/normal_5fb2d14a96e99.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366351/normal_5f87248479ff5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418381/normal_5f9dde1d90cf6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481527/normal_5fb4bac125389.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/sefukirexuwekij/guxekezex.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/okuma_guide_select_pro_trout_spinning_rod.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/magellan_gps_manuals_online.pdfIn PDF document text
    • https://s3.amazonaws.com/bubodeliza/ziwet.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/m4ufree_movies_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/fosawef/what_is_ifak.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/where_to_find_3_cephalon_fragments_on_mars.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44d5a77e-612b-4c16-be48-515f5f8c19f4/masiwokikunixege.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/serijikunutim.pdfIn PDF document text
    • https://s3.amazonaws.com/jolufozo/samumimozepuwibiwa.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_off0000e1dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1DD 5376 bytes
SHA-256: c35e6cef118cf4e8bb7775b2eb2bc75b6163759b4bf2916488bb91bb52ed0ac8
font_01_sfnt_off0000f428.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF428 10852 bytes
SHA-256: a5794181ce76a878fc23ca1d168f59069aec35a8870ed5103fab522e55196dad