Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2567eedc1025862…

MALICIOUS

PDF

68.9 KB Created: 2020-12-27 07:56:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 7f11f5fb8878d7dffe74a6dec58fdbe4 SHA-1: ddd8c5c3aa4807830b516ac2cab3b69fbdbb1f4c SHA-256: a2567eedc1025862d929f3158469759adca4a8df355b0ba13859aa8fca60f5f5
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 0.9998

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://traffking.ru/strik?utm_term=psoriasis+scalp+cream PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366628/normal_5fbaa6af15b32.pdfIn PDF document text
    • https://cdn.sqhk.co/supopelax/WOJjjxg/ralapereweraruwuxe.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/5jgOGig/horror_scary_sounds_for_halloween.pdfIn PDF document text
    • https://cdn.sqhk.co/kalijada/eghjbhi/vowugewitaxas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420911/normal_5fa84e935dfab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426260/normal_5fe7e95e42a71.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/jozaponi/web_designer_portfolio_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/rakanabasuzatirutaraw.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/8199891986.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/jobugozedudumokafajelu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2f82053-c4fe-4935-a79b-f4deb27ffdbe/47678498824.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/aaaa_telugu_songs.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_off0000d22d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD22D 5080 bytes
SHA-256: 0b4d969eb8571f86ea8efbf60e80cc913581f729c096b413f3c110d980e64113
font_01_sfnt_off0000e35a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE35A 10356 bytes
SHA-256: 279937e0384d3f7c4df156c16a390ed119865e0cecdf93f3cb2335254f78bedf

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