Malicious PDF — malware analysis report

Static analysis result for SHA-256 2664aeca7e5321d9…

MALICIOUS

PDF

69.6 KB Created: 2020-12-27 15:22:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: eef38f958413bdd815d9366dabc1e383 SHA-1: e87affd2e38b8afa5f1dbdae409827ce48b76b09 SHA-256: 2664aeca7e5321d993cf7269b9ae74fafd55388039a131c0b877c9161c88045a
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI heuristic suggest an attempt to exploit user interaction via a malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffset.ru/strik?utm_term=red+alert+gameplay PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4409826/normal_5fc312de16d75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372080/normal_5f9da2472a0fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367631/normal_5f875ff71316d.pdfIn PDF document text
    • https://cdn.sqhk.co/boxokozofe/GijhdiC/entire_map_of_game_of_thrones.pdfIn PDF document text
    • https://cdn.sqhk.co/sejujona/gm5gfua/wind_spinner_not_spinning.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483361/normal_5faa60b4b023e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387939/normal_5f8e9348b3c3b.pdfIn PDF document text
    • https://cdn.sqhk.co/vowibesep/ifKjagc/microsoft_e-_learning-_applications_office_2016.pdfIn PDF document text
    • https://cdn.sqhk.co/momujolo/8VYhdDL/58791648242.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/2ca9dd5f-302e-4b30-a2b1-7e7af003e7ac/hexagon_picnic_table_plans_with_umbrella_hole.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f031f54-b78b-4ded-a2e1-36cbdf2bca74/13429843013.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/1446343820.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/bopokafuxapewanel.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_off0000d3c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3C3 5212 bytes
SHA-256: 9f63dff27441e72eda48e68f482061355a0166f1fd8fc10ca4b8d8e8df2fe8b2
font_01_sfnt_off0000e576.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE576 10784 bytes
SHA-256: f0e8ad88a240ef85f9d91dc7dc2563ede31212070b54bf3b6614e9bdb852775a