Malicious PDF — malware analysis report

Static analysis result for SHA-256 08184a25660b0380…

MALICIOUS

PDF

66.6 KB Created: 2020-12-02 04:19:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 5dab7b839bda5c14ff6e95c68164657b SHA-1: 1da9360347af6db7825069b405ace67f11e9e5fa SHA-256: 08184a25660b0380629ba04e3afbfa6c6a7b392348f8badbc9cce048d457c121
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to a malicious site, potentially exploiting PDF vulnerabilities or social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafffe.ru/123?utm_term=take+me+back+to+reality+lyrics PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4491725/normal_5fb77d7c35c40.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368731/normal_5f897c0fa32e8.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/zagapaxa/consumer_reports_bottled_water_with_arsenic.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc599753398ff75154dc615/t/5fc69f9ee6d49a06bb7c49f5/1606852518296/36524360015.pdfIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/hea_application_alaska.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/72475867315.pdfIn PDF document text
    • https://s3.amazonaws.com/wegugus/slinky_maxi_dress_missguided.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0412cae-b521-4813-b53f-24aac4bbdef8/st_johns_property_appraiser_fl.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fe9bafa-5374-41aa-a698-74135c03c870/35642571917.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/49340070765.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cedea19-5d01-42c6-b219-7637dfd1d2bc/86428086462.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_off0000c978.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC978 5200 bytes
SHA-256: fd548280a949e44e366d95d770f700ba0feded28c14aa6d23953a9117c3f1b3e
font_01_sfnt_off0000db1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB1C 10116 bytes
SHA-256: a050e8879a3d07b38ed26d96cd4a365db750efec8dfbda682f7646ce72232f30