Malicious PDF — malware analysis report

Static analysis result for SHA-256 e22501352b8b2369…

MALICIOUS

PDF

68.7 KB Created: 2020-11-30 20:02:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 455d444e8bc8ab6a1a140c1f914cc7d0 SHA-1: b70ebf4bda53ff13e85146d2a20babe094bec089 SHA-256: e22501352b8b2369707124b7d1ba8eb204bbb1954ddd4c1a8faa381795d30807
154 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, 'traffine.ru', which is likely used to deliver a payload or phish credentials. The document body, though heavily obfuscated, suggests a lure related to 'Bus e ticket format in word'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://traffine.ru/aws?utm_term=bus+e+ticket+format+in+word In PDF document text
    • https://jatokogeredere.weebly.com/uploads/1/3/3/9/133997843/joxesexu.pdfIn PDF document text
    • https://doxemikawapuki.weebly.com/uploads/1/3/4/3/134314999/05cff19.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369307/normal_5f9cddc1ec17e.pdfIn PDF document text
    • https://noxepelobisuse.weebly.com/uploads/1/3/1/8/131871648/modup_jajagil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419849/normal_5fa78ca7a6607.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/jupudizadid/75123206448.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5effa348-0cc0-4209-a563-877e627c8031/tv_guide_burlington_nc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39f8187d-650a-4e0b-b9d7-18305be90931/94914249012.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f788a41-8da9-4d96-935b-db3c95c5cae8/muvise.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c20665b-9f88-4480-bb1f-00f7745dcb07/nudorew.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/equidad_de_genero_libro.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_off0000d115.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD115 5340 bytes
SHA-256: 02937706897cec1c81f43de6f226b40fbaa3be49881080ff04488d17e85e5188
font_01_sfnt_off0000e344.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE344 10416 bytes
SHA-256: 8676c2897fa81da58307cabbb8dcc695975725955bc262d5511bfe055b0b4cf6

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