Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a37e666bd7f3bd5…

MALICIOUS

PDF

72.2 KB Created: 2020-12-07 16:21:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: cb42a8fc1249f937181fb3020e16e60d SHA-1: 925e742af577a544e00bf2d5f2d00bf82b4e4930 SHA-256: 6a37e666bd7f3bd5a7adb2d48de3f942154536715a20e3be52dbb94cea40f606
154 Risk Score

Malware Insights

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

The file is a PDF containing a link to a known malicious redirector, traffking.ru, disguised with a movie title. This strongly suggests a phishing or malware distribution attempt. While no scripts were directly extracted, the PDF structure and the malicious link indicate an attempt to trick the user into navigating to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://traffking.ru/aws?utm_term=commando+2013+full+movie+free++mp4 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4403672/normal_5faaa8be9c413.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403417/normal_5f9fa359d337b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368998/normal_5fab82d92e0f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465015/normal_5fc04d3f3cf71.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/gonima/maps_for_minecraft_1._5_2_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/62076823389.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af3c8342-a594-453e-82c3-8251d3e7105f/54740759466.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ed2082c-1a8a-40aa-a5c7-a1d963061480/70923719548.pdfIn PDF document text
    • https://s3.amazonaws.com/febopa/green_mountain_boxwood_pyramidal_form.pdfIn PDF document text
    • https://s3.amazonaws.com/likadojivivofu/real_estate_rehab_investing_bible_review.pdfIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/cement_sheet_wall_anchors.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/health_and_safety_policy_template_nz.pdfIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/8849719306.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c72d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC72D 5552 bytes
SHA-256: fe38e621640fab0892189e9f9955e0366e042b57b9ad93f58cf9d46684166095
font_01_sfnt_off0000da0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA0D 10692 bytes
SHA-256: 5ab5bd7d97c1f7933e2e0e705717b603c06def97496ea8549100d75f32c92605
font_02_sfnt_off0000fec6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEC6 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6

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