Malicious PDF — malware analysis report

Static analysis result for SHA-256 fefa447d69ec4009…

MALICIOUS

PDF

63.4 KB Created: 2020-12-04 12:15:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: f72856affeabcf75cdf763d105fa171c SHA-1: d3282e698281919138d2cb49ae670af43a1333d3 SHA-256: fefa447d69ec400978a06def569c76413fdfeeeab825ee0e6f7150564d581446
156 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, including one pointing to 'traffnew.ru' with a query parameter suggesting a movie download lure. Heuristics indicate a link farm and a critical ClamAV detection for a phishing trojan. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/123?utm_term=download+tiger+zinda+hai+full+movie PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370746/normal_5f9833d094030.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368243/normal_5f8bc3120e7bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365591/normal_5f8743fe1ffc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425772/normal_5fa7917c73fd3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373511/normal_5f89c43568b33.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457849/normal_5fa1a5d6358ea.pdfIn PDF document text
    • https://folemazilepi.weebly.com/uploads/1/3/1/1/131164248/kovilozum_bonotox.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/befarekogol/xisupebimeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/173c0d62-b9b5-48c1-a977-ad044614328c/10490883268.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/league_of_legends_tft_build_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/bank_management_system_project_documentation.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc13070e2fce462bc8dc846/t/5fc55e551972c46e3c5192e9/1606770262642/nothing_but_the_truth_summary_john_kani.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/3936585352.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb7ac645-4350-43fe-9210-27f4e6f64559/8611455125.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_off0000bad7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAD7 5344 bytes
SHA-256: b193479275691b3b2c478233f026085d507936207d57dae22166e5ce67e7e2fb
font_01_sfnt_off0000cd00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD00 10528 bytes
SHA-256: 97a38b6e3d07a3ecb0bced6247015929a9468c3911e4620335fef6f0769a43c1

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