Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6bf4a0c660fc7fc…

MALICIOUS

PDF

60.7 KB Created: 2020-12-16 00:51:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 614c41aceef1312dfec331cb39658d6e SHA-1: 1d5eec60b9a122f7435e45378803e27ab5cf373b SHA-256: d6bf4a0c660fc7fc9fbf5a82ac03297ba7052405376acf07a736f84b3ac8d9e9
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically indicating phishing and trojan activity. It contains an embedded URI pointing to 'trafftec.ru', which is likely part of a phishing lure. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://trafftec.ru/123?utm_term=sifas+love+live+reddit PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4377933/normal_5fa5d0f97963c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409095/normal_5fa0d021591d6.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/gujutavevive/kafosatajoregutepezirux.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc78bb4161f8068becf173c/t/5fca9885c81a0b0777cee20b/1607112839079/elementalist_poe_tree.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf6a7f6457125654336849/1606380162263/rewriting_linear_equations_worksheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1b5e47d0c8f249d467b8d/t/5fca497d81b71b4085a2b630/1607092605469/fizufi.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/94108255768.pdfIn PDF document text
    • https://s3.amazonaws.com/welanisowari/baseball_field_depth_chart_template.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc289bc24b06a7eb309ae07/t/5fc395aecb3e0f5771be7508/1606653359212/linear_combination_method_definition.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcef9fc246a5d73f4749954/t/5fd70550154d72787102ec6d/1607927120681/amendments_in_right_to_information_act.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_off0000b25e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB25E 5064 bytes
SHA-256: ca58b393fe3f50dbe870192d054e9b61f10edc661bcf8f128e949b52ffa07c2b
font_01_sfnt_off0000c3ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3AB 10336 bytes
SHA-256: dc85179a79cb905c3a9bd309f2926bd7037c6f5036f4ec2c352a9109b7e67277

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