Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed4fc567762ae25c…

MALICIOUS

PDF

75.4 KB Created: 2020-12-17 05:10:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 81f23a1eb920b28119495fc62b2f57a9 SHA-1: 9170c67d2fcaa720adea53a1c63d90c5c382c2d0 SHA-256: ed4fc567762ae25c8ccc63bc1d197e0e40d0c768abbaa3295ddbf3bf64f8cb41
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 0.9997

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://traffnew.ru/strik?utm_term=say+it+mp3+free+download+dance+monkey PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4486975/normal_5fd0614d67b58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385030/normal_5fb8591a75ddd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386366/normal_5fb97597ddb63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390996/normal_5fae66cbcf9c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410027/normal_5fc7d5f19c26e.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://static1.squarespace.com/static/5fc27aecc14dfd36fefb8ed8/t/5fc544ccf81c9a2a0c4ffbd8/1606763725602/93448130362.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/1_goal_free_education_for_all.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/31852615054.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfc9c64be903ae64060bd/1606220957332/tapetojobevekijudozemuje.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/lexus_club_terrace_amenities.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5778f405d5340f3487ee4/t/5fc658d74e98326c02ea3d5b/1606834391764/vedic_maths_tricks_app_download.pdfIn PDF document text
    • https://s3.amazonaws.com/tesasubawalozan/business_school_book_in_telugu_download.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_off0000db5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB5F 5436 bytes
SHA-256: 148cf581e6ba450e9869c26cb560e68a95971f5b1300bd040fb059def8572259
font_01_sfnt_off0000eddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDDB 10584 bytes
SHA-256: 8adacd9c3474211385031772af315be91afde11e01d56567f41265e10fd8497c
font_02_sfnt_off00011218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11218 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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