Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dd068142498bcfb…

MALICIOUS

PDF

62.7 KB Created: 2020-11-13 23:11:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 6d1561cdc69f0a7d2cb10e29849a81b5 SHA-1: b4573500b62b7486771fec094f3337f4a55d6eb0 SHA-256: 4dd068142498bcfb7576552f81717236c5604e734b04c62ed39c7a50d58c383b
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 0.9916

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://trafficel.ru/strik?utm_term=ales+konu+anlat%25C4%25B1m%25C4%25B1+indir PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370304/normal_5f9dac7feaa51.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/3e185a91-daf2-473d-8957-aa8b186826cf/fejukopa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74e87fa4-f559-407a-93c1-7a60333d5ff3/affordable_uniforms_north_olmsted_ohio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3f9a2d5-0e89-4749-a6ed-74764538a52f/guide_rod_green_laser_for_g26.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/pakalisubu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1b4ebfe-5a83-415f-b9dd-e15758016c3f/call_for_proposals_2020_zimbabwe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c213c62e-a1e0-431b-97e4-b35f436d17e4/juvevafabopadirulipakul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bdd0d0e-a272-481b-8d0f-5fffdbc77b20/fagejofidoxodewizor.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

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b81e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB81E 5056 bytes
SHA-256: b40b3f032e93bb774a4827f0bcd76260238559e4542f81ef7e24d12fc949e20d
font_01_sfnt_off0000c93b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC93B 11440 bytes
SHA-256: 3b81b45bc5870bae0e1fd8c980788e98fcf768231ef8535f06f46472dda85390

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