Malicious PDF — malware analysis report

Static analysis result for SHA-256 48e24811f871fd95…

MALICIOUS

PDF

40.1 KB Created: 2020-11-04 04:13:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7fa85bc07e36accfb869feb2b29ba4f2 SHA-1: d78e9f0f215fbd58363870628e37b01c0920cd01 SHA-256: 48e24811f871fd950be63d24de4b75a0ed23deb7c3d2e57a8b5ada428157b0c2
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ttraff.me/123?keyword=determinants+of+supply+shift In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379610/normal_5f8a711c9b4b5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385437/normal_5f9e2e41ee8db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388412/normal_5f90531cbac05.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/80577b16-e874-49f6-a4b7-bd0f9ecca4a9/22715280253.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3882ea8b-33cc-462c-b862-359004d48357/53831151124.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97e7cdd0-388b-43c9-b692-858a083c323b/80672269332.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7431596-bac7-4f93-a376-4f46b128aa47/jigagabopimimumotokulatub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f13ee95-cfdc-4281-adca-11f76e2720e1/what_is_faulty_coordination.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/13046207444.pdfIn PDF document text
    • https://s3.amazonaws.com/bisute/creek_county_warrant_search_oklahoma.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_off00006150.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6150 5240 bytes
SHA-256: 08860437fb539d2ac87cbd669b35ee5caa1c0ecdcb1a444c3bea8af3d721c5d9
font_01_sfnt_off000072ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72FF 9708 bytes
SHA-256: 4032505425115f85b4d85df43b57e12b3db76b4ff1190efdee7cd1788cd1af42

Open this report in the interactive analyzer, or submit your own file for analysis.