Malicious PDF — malware analysis report

Static analysis result for SHA-256 87be94db04a127c2…

MALICIOUS

PDF

61.7 KB Created: 2020-11-13 09:07:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 30499ac4566f6e3285487ed01da9e40a SHA-1: 9d2b90ca380e4534e63430a8fa597789700653e4 SHA-256: 87be94db04a127c23a81c804bc424fcbefec071e6e8a5ae9c9566e49ea58b64e
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-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://trafffi.ru/strik?utm_term=allianz+partners+sas+annual+report PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4465267/normal_5fa739e473558.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454822/normal_5fa9951b7b28e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376369/normal_5f9921f54ab77.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391599/normal_5f8f69af92a3c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387232/normal_5f93bfa4baa6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401558/normal_5f9c8f018dfd6.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/gurowozenupifi/fernando_hernandez_md_chicago.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/180d5120-9fef-423e-90cb-59bddbc6285e/nikon_monarch_3_6-24x50.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f4a5460-573d-4de0-af16-45ca3a7c539c/million_dollar_project.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/lapanotawenufim.pdfIn PDF document text
    • https://s3.amazonaws.com/fekazudabo/philippine_retirement_authority_id.pdfIn PDF document text
    • https://s3.amazonaws.com/tonisefoteka/57517502127.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/amaranthus_hypochondriacus.pdfIn PDF document text
    • https://s3.amazonaws.com/kakef/jejinikanunokosodom.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_off0000b819.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB819 4852 bytes
SHA-256: 6485841d86e2275c673eb37ff87f6fea3a9286e56a7538c32e20cfd1bf9c3004
font_01_sfnt_off0000c8ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8AD 9808 bytes
SHA-256: 71e6c225fdcc62898f3781d57d29e4086426f9c2e830cc1da8cfd37e37251f00