Malicious PDF — malware analysis report

Static analysis result for SHA-256 700c00803311085a…

MALICIOUS

PDF

68.1 KB Created: 2020-12-18 20:09:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 34235ffe13eee08ece1257cb5b54ab09 SHA-1: 17ab00130b8019880be35450c4cd18edf5a861a2 SHA-256: 700c00803311085a2e3326a42cf2e1626fa771d2cd6384dcd92fe3d2b9584416
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'traffmen.ru'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious URL suggests an attempt to redirect the user to a harmful site, likely for phishing or to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffmen.ru/strik?utm_term=ps+vita+charger+port In PDF document text
    • https://cdn-cms.f-static.net/uploads/4470226/normal_5fbba93c0a7cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417653/normal_5fd3c9be0009d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412183/normal_5f9e6fe5be2a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366324/normal_5f8a072c9a70c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380211/normal_5f8cb0334f770.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370066/normal_5f8c9f8b25509.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403406/normal_5f9249c0067b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417137/normal_5fdc60d6f3800.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470521/normal_5fd9e2c06ebc7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419633/normal_5f985e79283d7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc59483a87939686427f29a/t/5fd6c38c3ebe0416316efabe/1607910284959/80910805053.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_off0000cfe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE4 5224 bytes
SHA-256: d3177b642016b87ee7cb036e14f09078cfdcf85d4251b8943632c1349b0af743
font_01_sfnt_off0000e1b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B6 10136 bytes
SHA-256: af37f2038f737023162b5bf94f9a9b1d5e73dc70dac9f6ef7c2c02eaaed86ff2