Malicious PDF — malware analysis report

Static analysis result for SHA-256 914e8dbf9bc1f73e…

MALICIOUS

PDF

79.3 KB Created: 2020-12-22 07:49:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 92a7cf8691e6d83fc91a933a3ee1e2b7 SHA-1: 17cc75cc1536f6991818855dfc4d13cdbee7f657 SHA-256: 914e8dbf9bc1f73efae4212657bf2cd706c861fb65bc4988514f5a29ab3ac07f
96 Risk Score

Malware Insights

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

The PDF file was flagged 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 a product, likely to trick users into clicking the malicious link.

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
  • 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/123?utm_term=low+profile+oil+drain+pan PDF link annotation
    • https://vunisanelebori.weebly.com/uploads/1/3/3/9/133999195/6b1690.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387825/normal_5f9f1fc6afff3.pdfIn PDF document text
    • https://dugufenejoropez.weebly.com/uploads/1/3/0/7/130775504/fogumakoz-zeminokitugop-jeradanub-wasovawusexo.pdfIn PDF document text
    • https://sujajikozodes.weebly.com/uploads/1/3/1/3/131384638/kafax_pukexojef_fikiruse_wibefoti.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380869/normal_5f8f30b514ed8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454682/normal_5fa3dc4e7a671.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416791/normal_5f9dbe26ce90d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/2a912825-edb1-4b68-80a6-e49725e1560d/97467716385.pdfIn PDF document text
    • https://s3.amazonaws.com/vibove/cleric_5e_domains_grave.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/barry_has_a_secret_unblocked_games_76.pdfIn PDF document text
    • https://s3.amazonaws.com/tojazudibumogab/better_me_app_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/kitchen_design_websites_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaporam/dak_stats_naia_baseball_scores.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB58 4600 bytes
SHA-256: dac39fdb8f314d022c86f9b9e72d42a8f16f7fdb8fab5656758928df2a04467e
font_01_sfnt_off0000fb0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB0A 11776 bytes
SHA-256: b29c73585fb91ffff23dc8fa855cabed0169ffe4f4966c0e73abc8efb51c01bd
font_02_sfnt_off0001221a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1221A 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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