Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f07149c11c95d4a…

MALICIOUS

PDF

69.2 KB Created: 2020-12-17 05:00:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 2fb5ba442a548bcfc07aa92c801047a9 SHA-1: 978b4d8c2bf5e7b23a38c739462dc999093b0eb0 SHA-256: 5f07149c11c95d4a26408f4012e7efe259f627eb88b9ebbd7ba60ab52b5de592
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://trafftec.ru/strik?utm_term=house+tree+person+drawings PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4489042/normal_5faa62e65c07e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447487/normal_5fc75752d9104.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488100/normal_5fcb5e63c9f18.pdfIn PDF document text
    • https://likivaduzizi.weebly.com/uploads/1/3/4/6/134699319/rufejifox_wubavabuwis_fubezerip_samureb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488139/normal_5fcfeb6e5bd0f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367277/normal_5fa781eff2fa5.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/5fc5230124b06a7eb31af4b6/t/5fcd086633187724c4f56609/1607272550640/the_culture_industry_summary.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcf2db271f6413cf54442cf/t/5fd6daa4de5b1220c03cf425/1607916196495/harrison_bergeron_by_kurt_vonnegut_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66f7a128-61ab-493d-b5e9-026ba816506b/ls1_2_bar_map_sensor.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5a0febd14ff0dd2bcca88/t/5fd00bd286dbd518ecc9f16e/1607470035656/dozokatubozawuzixo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfa80dae50a01458715fc/1606220418078/5491970315.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d6092e537a05ef08bc6e/t/5fc58fa2f3de5e49b5240766/1606782882832/korezinibuzivatojelafo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc06d09e5c7695ca9994347/t/5fc53c103c02f22b9db72663/1606761488838/sofebanujen.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2856f24b06a7eb3098ecb/t/5fd1d145b91f50015eee85bc/1607586121270/vitubugutemivabisevu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b47dee67-6b24-409d-ba36-81f43a0f6bf7/chronicles_of_narnia_order.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_off0000d27d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD27D 5148 bytes
SHA-256: 7c85a1b126e2b77fd022594918abf9dc9e02895c8ffb89e158a6dd2d270d16f5
font_01_sfnt_off0000e41e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE41E 10436 bytes
SHA-256: d4b17439a91ef257e84eb0cce203e31d7033fe4e30fa45dbff5c0ff41c7a790f