Malicious PDF — malware analysis report

Static analysis result for SHA-256 777f597d4a42c784…

MALICIOUS

PDF

91.9 KB Created: 2020-12-26 16:42:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 32e36fad8f9173755d66d0ad939b4698 SHA-1: e11d664431e91a1c0d90a276fa73627847d2dbb0 SHA-256: 777f597d4a42c784481150325e9e5fc2fc22d91fc88b40ed558c9f49289dbe5f
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the presence of an external URI suggests an attempt to redirect the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffine.ru/123?utm_term=textes+pour+bapteme+religieux PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4419826/normal_5fe23c51c69dc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372987/normal_5fc7a6fd0e6cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455195/normal_5fad2d7bb587c.pdfIn PDF document text
    • https://nurenevomezuku.weebly.com/uploads/1/3/4/6/134641424/949ae68ea38f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477163/normal_5fb2cc8af2931.pdfIn PDF document text
    • https://toxilitabosi.weebly.com/uploads/1/3/4/4/134495834/9e80789f.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/1228810d-8b18-47cb-a95c-09e2d7cae9a2/mupafasomidula.pdfIn PDF document text
    • https://s3.amazonaws.com/rotafasaniz/gagowanubipol.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/60247659309.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07c7e7e6-b99b-4b61-ba98-c4d8af2648b6/44138485779.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07d976df-9171-438d-a4e9-46a8e039aec5/bicycle_for_two_font.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/d_and_d_5e_wolf.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_off00012878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12878 5296 bytes
SHA-256: 8ae15bbc348c76a40669fcf16b1812fcf8eacd2f2e31c114f60d82f1a6df3836
font_01_sfnt_off00013a67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A67 12832 bytes
SHA-256: 97c8c6bbe21710fe0973ef4dd9ba075a1cb9cb7280e4eeb81cc84e5de66df674