Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5e3a9212c0396a2…

MALICIOUS

PDF

72.3 KB Created: 2020-12-15 07:42:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 576e40931b69b30c55d30e5049072ca0 SHA-1: 978dd00c54d8842470c5c11c14861368e76f13af SHA-256: c5e3a9212c0396a23529d82ef0b18a13655377936be55a6e4f6344744d066ac1
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 0.9997

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=golden+sun+gba+rom+cheats PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4443292/normal_5fc16a7f1a8c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418370/normal_5f9dfb9d91eef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365563/normal_5f87136c3b35e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445739/normal_5fb49deb5ffa3.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/zufaxepixiguxax/bewejagegar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bca431a3-ec95-41f9-be54-72fa3cdf4203/william_penn_high_school_marching_band.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/windows_8.1_pro_build_9600_activator.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/ge_jvm7195skss_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20cdd53d-ae19-4f68-915c-267fe6e6c220/kififereri.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcef12d9697205d6f6633f7/t/5fd697dd5b1f6f7539dfadbd/1607899103247/17520854721.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc57ef42bbd740658259ff8/t/5fc86203f97c193540ee6841/1606967812108/homescapes_cheats_level_183.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af45d12a-1519-4a6b-9021-e22ac169cacf/diablo_2_hero_editor_1.13_windows_10.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc14b808139af037647f366/t/5fc3a38acb3e0f5771bf84f8/1606656908918/eso_sphere_manual.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_off0000db16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB16 5524 bytes
SHA-256: 0f5ed78622914ce6c891bf504263c4b3aefb6184c7e596a0312d91242671a2ea
font_01_sfnt_off0000edb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB5 12480 bytes
SHA-256: 4ecf076a215ce9ac35b316d7f8d5988988caa4634f052457f60bb01549c8db6c