Malicious PDF — malware analysis report

Static analysis result for SHA-256 79f3eeb74ab8388c…

MALICIOUS

PDF

69.1 KB Created: 2020-11-13 20:41:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 16a231c9fb60dc599b83fd6e3bad8222 SHA-1: d129add851e3a335a4f8e304c1bfaec309952ae0 SHA-256: 79f3eeb74ab8388cc0e633cf89c3a131fe8bcf0b61558823dbbe41ca05b8d9a1
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. An external URI pointing to 'traffset.ru' was extracted, suggesting a phishing or malware distribution lure. Although no scripts were explicitly extracted, the PDF structure and the presence of embedded URIs are consistent with common phishing techniques.

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://traffset.ru/123?utm_term=anatomy+of+the+constitution
    • https://fekudumubaf.weebly.com/uploads/1/3/2/6/132681201/9714766.pdf
    • https://xovadesunuzavam.weebly.com/uploads/1/3/4/4/134479636/85ac4424.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/1fe70fa5-d350-4ac0-aed6-0a8b1e59c496/10442549588.pdf
    • https://uploads.strikinglycdn.com/files/7a03b0f3-1b6b-4e3b-8707-9454b02d82ef/4926284712.pdf
    • https://s3.amazonaws.com/zedilegol/keter_work_table_accessories.pdf
    • https://uploads.strikinglycdn.com/files/fa3ef165-4197-4de2-aee0-c47273caa4cc/caber_tossing_history.pdf
    • https://uploads.strikinglycdn.com/files/4a148d5c-3a60-466a-ab10-aa7c7d2ea4cb/81706058216.pdf
    • https://s3.amazonaws.com/zuxadol/fresher_party_anchoring_script_in_marathi.pdf
    • https://uploads.strikinglycdn.com/files/5e330c09-c1c9-4c3f-8e4b-ad41710421bf/wasukeno.pdf
    • https://uploads.strikinglycdn.com/files/f03629f6-eea1-4a44-9d23-27d3cd0baef8/62180354418.pdf
    • https://s3.amazonaws.com/fapaga/gikikasabogi.pdf
    • https://uploads.strikinglycdn.com/files/717931c4-70e5-4330-835d-320e2c0c7e95/34618869444.pdf
    • https://s3.amazonaws.com/henghuili-files2/brute_force_password_online.pdf
    • https://s3.amazonaws.com/wavunot/jodatazuw.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3a3.bin
0257e30b392166d8716e038953cb699fb402537f5eedd3cc039c3a9efed8ea69		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD3A3 5084 bytes
font_01_sfnt_off0000e4dc.bin
e9e364b2520cdb6d55552f06774195bfc53ebf74b43174efb07517368d2c0da8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE4DC 10092 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.