Malicious PDF — malware analysis report

Static analysis result for SHA-256 af6f1f28242389ce…

MALICIOUS

PDF

68.6 KB Created: 2020-12-19 16:16:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: c6aed8b857bddb062b69794e51686376 SHA-1: 1c8c71b966465c5fa330b9109f99448dfe0e834e SHA-256: af6f1f28242389cebacd21634166389f0f8bb5a67d12de3147cde27c55790693
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL disguised as an episode guide. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The embedded URL is the primary indicator of compromise, suggesting a redirection to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafficel.ru/aws?utm_term=episode+guide+ncis+season+17 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382408/normal_5f8b80b9ded97.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403565/normal_5fdd98996ee97.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415534/normal_5f9f154a9b09c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372361/normal_5f91fee56d122.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387033/normal_5f915a4d76f7b.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/xanebavifamopez/winebuxoselokoxum.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/free_john_deere_skid_steer_250_service_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a653474-2ff8-44c9-acad-f2ffe4d4ab14/vikodavetolasobegufonani.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c356a13a450babf351fc/t/5fc1c54d9ee0f32b87948e76/1606534477991/govivizoxi.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/algebra_formulas_bengali.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/zatunuvirinuxavot.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdcba3c92f0e27cb84b8f30/t/5fdcfdda67c3114891d510d0/1608318426929/keim_granital_dilution_data_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/dutokeku.pdfIn PDF document text
    • https://s3.amazonaws.com/supefujoxopubu/avira_free_antivirus_offline.pdfIn PDF document text
    • https://s3.amazonaws.com/tinezedu/92258768398.pdfIn PDF document text
    • https://s3.amazonaws.com/debamijizozexo/49418870410.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_off0000cf24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF24 5204 bytes
SHA-256: 3d5773ef84997caf0026eedd382e5ce50ef831553eb8bb151e5bcea7026e067f
font_01_sfnt_off0000e0ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0FF 10516 bytes
SHA-256: 055f8614485f0bff20d57be780a37d8efb740124e0f82389c2cedce656d1fe1e

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