Malicious PDF — malware analysis report

Static analysis result for SHA-256 d02a42f6556169a1…

MALICIOUS

PDF

68.7 KB Created: 2020-11-18 03:00:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 467cd0a8c241b69792b13f9927cfe861 SHA-1: 1ce4c145be8d9c54a4d555e14355e67ee79355de SHA-256: d02a42f6556169a1618897ec083ff4d8af8aa066bd2367c39504dd47b1d1e0ae
156 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains multiple external links, including one pointing to 'traffnew.ru' and another to a Weebly-hosted PDF, suggesting a link farm or redirection mechanism. The document body, though heavily obfuscated, contains keywords related to 'Monster Hunter Elder Dragons' and application metadata, indicating a lure to disguise the malicious intent of directing users to external, potentially harmful, sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=monster+hunter+elder+dragons PDF link annotation
    • https://batarodev.weebly.com/uploads/1/3/1/3/131380453/61d7ce66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382620/normal_5f8b5b0982b15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393364/normal_5fab6d3d15e07.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481662/normal_5fad73664d65b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373243/normal_5f88ac8185f2b.pdfIn PDF document text
    • https://labaveboto.weebly.com/uploads/1/3/4/6/134611097/3258948.pdfIn PDF document text
    • https://tinuxitimo.weebly.com/uploads/1/3/4/7/134748051/8aa7fd26.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383300/normal_5fa880184de40.pdfIn PDF document text
    • https://geselumagema.weebly.com/uploads/1/3/4/6/134695037/b08adfdec6af.pdfIn PDF document text
    • https://zeziruxowajud.weebly.com/uploads/1/3/4/6/134698921/81ccab70.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381748/normal_5f986e35b438b.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/bokexizometun/kokanee_salmon_fishing_report_colorado.pdfIn PDF document text
    • https://s3.amazonaws.com/gonima/a_void_georges_perec.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/fekumuxodur.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_off0000d285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD285 5092 bytes
SHA-256: ef99fe5fdaea2e3526c58e1091ae7bba9e12798e5562569f159e318eac7abb4f
font_01_sfnt_off0000e3cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3CD 9936 bytes
SHA-256: 3371c9d50d250279cbd8ef4a0f7749c0945a79a06b8ad30b90d63a23f6716b35

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