Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdd1206c605d465d…

MALICIOUS

PDF

67.8 KB Created: 2020-12-06 00:10:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: dcd433dce8ce10cf4f68a2145ff9c473 SHA-1: f3712016060073d2d3e02b8f570feae8c995983b SHA-256: cdd1206c605d465d12ee3868e3ee8c25c24b9227987f68afeeb7aea2b50fe806
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a phishing site. The document body, though heavily obfuscated, appears to be a lure related to a 'porch swing hanging kit rope'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.

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://traffnew.ru/strik?utm_term=porch+swing+hanging+kit+rope PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366989/normal_5f872a3bd16db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390057/normal_5f945d464afb4.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/zirojopemup/name_reaction_mechanism_in_organic_chemistry.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf67f07acac6192ab92b8d/1606379505501/82050092251.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/responsive_ecommerce_template_bootstrap_free.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc67172bdb33045eee820f7/t/5fc6f56f48d5672cfb32108f/1606874479557/46654568732.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/free_games_to_download_on_macbook_air.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/694d8f5d-5dab-40c7-a46b-af64999a3af5/zakijefawomironakoz.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/sy_rogers_obit.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6e3701969b523a41d4213/t/5fcb1e4c8dcc5603beef3b52/1607147085141/how_to_get_likes_on_ig_without_hashtags.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/pumefira.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_off0000c7c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C6 5320 bytes
SHA-256: fbbf2076d9a0b4e7f378dfa6f01ceb79b8411d29710c8e052070ae7f508e1efa
font_01_sfnt_off0000d9f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F1 11544 bytes
SHA-256: ff57e13e59d37ac488bb44dd5afcc2bb26567381dcf6df40b75cf58f505b8319

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