Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a50f2e92c184d9f…

MALICIOUS

PDF

60.5 KB Created: 2020-11-13 20:48:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: fd1bfc9def003a642106a5c6e57fd175 SHA-1: 25a36e29f64d0033e0affd1bff44b23bda15403a SHA-256: 1a50f2e92c184d9f99df87d8b68e17fffb4368121db725dc03d7b76a7d44da1a
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 0.9996

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://traffnew.ru/strik?utm_term=monster+hunter+world+screamer+pod PDF link annotation
    • https://punuvenow.weebly.com/uploads/1/3/4/4/134445800/79904e36.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380681/normal_5f93090f3a5eb.pdfIn PDF document text
    • https://lesofetu.weebly.com/uploads/1/3/1/3/131378838/xuvuvavoli_bezakubevavoluf.pdfIn PDF document text
    • https://rabifupokuwu.weebly.com/uploads/1/3/1/1/131164250/2471783.pdfIn PDF document text
    • https://gobumireg.weebly.com/uploads/1/3/1/3/131383916/cc7e2ae2cbac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370543/normal_5f8a9ea91c663.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457573/normal_5fad2c0161fa9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458161/normal_5faa58e4b0458.pdfIn PDF document text
    • https://fupesovuzej.weebly.com/uploads/1/3/4/0/134016868/fakenuwizamig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377128/normal_5fa3eb5f0a47e.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/62e78301-bf2d-4b6c-8bd4-2b0330f2c189/muvegafurepu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9750a32e-b2ec-4b1e-84a6-36dd0fdbb0b4/60989832769.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/922d078a-3630-4b2c-875b-c8d47a3cb3c2/soxajapanemi.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_off0000ad25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD25 5412 bytes
SHA-256: 4c2fc1e825768be1ffc8ea6e1d111d5ffed458bd0fee061c45d4c66d2c0ead33
font_01_sfnt_off0000bf79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF79 10740 bytes
SHA-256: cf6ce0ec326715a6ca271de4876b8fb79e1da181770a647674e7ebcc167f35d2