Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c63274390b319b3…

MALICIOUS

PDF

68.6 KB Created: 2020-12-29 20:00:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 510c27f718b57408577ca871d9a86909 SHA-1: c2d42a3888d7e0f13c9b2028590677e72f714335 SHA-256: 0c63274390b319b3ffdd00d9e57cf1f711b3d6a571c0185a2497b7ac108523ed
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 0.9995

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://trafficel.ru/strik?utm_term=toy+basketball+goal PDF link annotation
    • https://cdn.sqhk.co/bonidanem/R1WBcQj/49051475450.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443325/normal_5fe5abee23a0b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384318/normal_5f9a5dae840b7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a04460f-f891-4369-ba68-59f49209e25b/how_to_open_pak_files.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7287a9ce-bc1d-4dd1-8e1f-7c19215eaefb/bebotefutunabodev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/837b2b72-3234-4c8d-a2f0-c7462d6147cf/modern_warfare_2_remastered_trophy_guide_roadmap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8db435e2-1868-42f7-8528-94ea934037ab/vutuberajubevuvikot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39530c22-0481-48fb-903a-834e254c5bf3/crusaders_of_the_lost_idols_reddit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ffae32b-12ea-4735-a9f4-a0d1286c3a20/23607968430.pdfIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/vebilamefuwe.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_off0000d0ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0EE 5012 bytes
SHA-256: 3f1a4fd76d9c7b39a7ba4749e1f267ea37c0830e6d68029de80a2835c885722a
font_01_sfnt_off0000e21e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE21E 10252 bytes
SHA-256: 07dabe07527807b706fa8c795b0eb4debcdaca0232555754e6e4fc7fbaceb884