Malicious PDF — malware analysis report

Static analysis result for SHA-256 863e62664c6802d9…

MALICIOUS

PDF

70.8 KB Created: 2020-12-28 02:43:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 85395b8ac9a396ec9c021075cb41d0df SHA-1: 32cdf22bb086afa77cc96f5d4e43a7f76d5e727e SHA-256: 863e62664c6802d94a2234e367a8e19a19debc3dd27aa2c8b6bab7f647b7c066
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ggtraff.ru'. This, combined with ML and ClamAV detections, strongly indicates malicious intent. The embedded URL is likely used to lure the user to a phishing page or download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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://ggtraff.ru/strik?utm_term=app+code+spectrum+cable+box In PDF document text
    • https://cdn-cms.f-static.net/uploads/4425217/normal_5f9ae2ce08ab4.pdfIn PDF document text
    • https://cdn.sqhk.co/rapavuse/Aibhggi/carmageddon_2_download_utorrent.pdfIn PDF document text
    • https://cdn.sqhk.co/sigagegijej/pF7vhjt/jupulokowakekajilogok.pdfIn PDF document text
    • https://cdn.sqhk.co/ditetona/ggWYX2V/gixonebotidatowaxivade.pdfIn PDF document text
    • https://cdn.sqhk.co/sakiforivona/qC6hdja/buzzards_bay_brewery_food_truck.pdfIn PDF document text
    • https://cdn.sqhk.co/zenetofuma/YadidbU/buvoxesonutudetavi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/81f6260a-59bb-49be-8a46-a99ff6ca4253/gopikoliv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32468c01-6ed6-490d-9e54-0ee8964010d5/zapivepuxej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c52fb3cf-00d5-4584-9b73-11387eb611f0/thomas_calculus_11th_edition_chapter_3_solution_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba7c54f8-14ee-46a6-8147-691a58948687/955150117.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_off0000d9c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9C7 5416 bytes
SHA-256: 66ea47d8ba0fede6e8579ca9c080dac7258a190a3e47df6543c1aa746b239b38
font_01_sfnt_off0000ec19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC19 10080 bytes
SHA-256: bc3201a79e709fe31511744068aca17b1692ffcca6422402a1bb614f1b851c75