Malicious PDF — malware analysis report

Static analysis result for SHA-256 14cc0c3bcabcea71…

MALICIOUS

PDF

60.5 KB Created: 2020-11-19 19:10:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: b89416d5cbe6a079fe98cc33b7b79895 SHA-1: 9144b470cb13394f44d52d7d69324c52f4603797 SHA-256: 14cc0c3bcabcea7151b15ae2d33fc74bc3c37696fcfea2a6fcb4d4602b54951a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9994

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
  • 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://traffking.ru/strik?utm_term=kicker+l7+15+sealed+box PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388169/normal_5f8ddeaa709e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417818/normal_5f96430dce03d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370059/normal_5f8a13171dcc5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451025/normal_5fa235a294995.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/ladojenefe/brookville_middle_school.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3322c48-ed2a-4de4-9c75-7ae0931ed2b9/lafoxosisek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1e026d3-66bb-46c5-ba81-7212b6110a0d/how_to_install_a_grimmspeed_manual_boost_controller.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31da1c64-9c3b-4a2a-b54a-cd03df349a8c/wikeregegufakipa.pdfIn PDF document text
    • https://s3.amazonaws.com/nonabafat/91256802374.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/joforefovove.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_off0000b05e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB05E 5432 bytes
SHA-256: 1b60eed0b02e29b6ebabf5c992a6c09af284b65436456d9fc2ad671b90e84777
font_01_sfnt_off0000c2fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2FA 10256 bytes
SHA-256: 56a813ef911ad4331fecc005d57ea754cff92d05058de9412a4d075986593a75

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