Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0a0463dc49aa991…

MALICIOUS

PDF

67.9 KB Created: 2020-12-14 00:42:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 6cf1713f0cc502e243265ed907e16464 SHA-1: 85b04048c171f0c15958daa5e2270ce814330014 SHA-256: e0a0463dc49aa991ea2ed83b90ad588f533edf85ce05c53242613b2e901641c5
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that directs users to a page related to domestic violence interview questions, likely as a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing or trojan. The presence of an external URI and the overall detection score suggest this document is designed to trick users into visiting 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/strik?utm_term=domestic+violence+interview+questions PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387711/normal_5f914a0f31cdc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365662/normal_5f876f11da7ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382629/normal_5f959d3ad8f5a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453719/normal_5fced8833aa31.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470385/normal_5fc1684665f42.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366408/normal_5f8f14d5971fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383449/normal_5f97973945ea4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408862/normal_5fd69864de2b7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485579/normal_5fc85023cf58c.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/1f8aac1e-44fc-428d-8e24-26d1acd321b3/kifekebijakabujej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b2c6d63-0c28-45ab-a6c0-f309479df7a2/boy_21_chapter_27_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0583597b-431e-42f1-b9d7-d6854f6fff1c/exercice_nombre_dcimaux_6me.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e300662-7840-45b7-aec8-c051b0f13eb2/seattle_to_hawaii_flights_alaska.pdfIn PDF document text
    • https://s3.amazonaws.com/tibitexil/utopia_origin_combat_pet_guide.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_off0000cdde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDDE 5012 bytes
SHA-256: c6cc0419b971aa4f95f8b0ed134b93868d508ae65a976b13cd87a79a9e4bc0ae
font_01_sfnt_off0000def5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEF5 10524 bytes
SHA-256: 9db7ee825e755132a2c7d7d4adb101d073c6aa500a99cac26bad0d486f2aa282

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