Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee2f904346afba7f…

MALICIOUS

PDF

77.8 KB Created: 2020-12-10 08:18:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 02fad76602eeddfad30b131cf3eaaa67 SHA-1: d5c1b8a6a222177070de10e6e8138c1f4780aca9 SHA-256: ee2f904346afba7fe1ce3e41a0eaf6d847fa4d1d20f2d8575ea923982e018a6f
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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://trafffi.ru/123?utm_term=characters+in+the+crucible+compared+to+mccarthyism PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403687/normal_5f9b62db2c906.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374688/normal_5f8943e101649.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366032/normal_5f89072b44088.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374374/normal_5f8f375f2cd15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495039/normal_5fb339ca88a9f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410702/normal_5f99e0bceaa42.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/sojebelevenex/apothicon_servant_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/zakujijisaja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d34daadf-9576-4b48-a98e-3b2f07f143ec/fuzeranedevinefavusin.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_off0000f525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF525 5460 bytes
SHA-256: 7f5e69f153186224c1c41d60bc2086a6d81f561e48a82e22e228044c8be53792
font_01_sfnt_off00010783.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10783 10184 bytes
SHA-256: d696ed225beac38f72724ee2a1b46f69cab1d5516d76466b817fd9ca6d17a594

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