Malicious PDF — malware analysis report

Static analysis result for SHA-256 47d62b9e847cf442…

MALICIOUS

PDF

68.6 KB Created: 2020-12-26 09:20:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: bc7103cb230c79beb67e7ce7315b9187 SHA-1: c641703dd44b2aebaa22f50dd921b38870c6c7f0 SHA-256: 47d62b9e847cf4420dc3d6ccc55ba11b1ca7e4bf4dc4eab123f226122fbdda9e
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 URL is likely used to lure victims to a phishing or scam page. The ML classifier and ClamAV detection further support the malicious nature of this PDF, indicating it's designed for phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=promo+codes+vouchers+and+coupons+for+amazon In PDF document text
    • https://cdn-cms.f-static.net/uploads/4385004/normal_5fd11c03a05d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450878/normal_5fab2e3dc80ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385620/normal_5f93917564eef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369313/normal_5fa5c9718fbfb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369769/normal_5f8864f036bcf.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/0448625d-36d9-4040-b65d-8d82e0875315/reddit_headphones_buying_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/detubesalotipopakamumu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87f5fd02-712f-4d46-8d0e-a0aa1151d91a/susituxifuzonevu.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatesawodiji/plant_cryopreservation.pdfIn PDF document text
    • https://s3.amazonaws.com/gafedupeba/dolch_sight_words_writing_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/34588075876.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/45299579580.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_off0000ccff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCFF 5472 bytes
SHA-256: 0f940307d8252958746475f83e84d3ce28b30a2f8738178294eb53885ede9695
font_01_sfnt_off0000df86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF86 11148 bytes
SHA-256: 7eb22382d4f0351606f138d5e57276b7f14a618b6c5b1120c1b2e7259ab9e953