Malicious PDF — malware analysis report

Static analysis result for SHA-256 32916a61223f6dba…

MALICIOUS

PDF

69.9 KB Created: 2020-12-27 17:16:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: d1fae78e1f9b727940a2215509d4d052 SHA-1: 24d832d6b78a71f603b23801f3abba6e0368dedb SHA-256: 32916a61223f6dba5660fdb3d91eb8e25fbe82f942916a1a3232ec925cbb3622
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to a popular game, likely used as a lure. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/strik?utm_term=guide+for+among+us+impostor+glitch PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4408476/normal_5fe7814134d7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454968/normal_5fb37fe61bf9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405195/normal_5f9744123ef8e.pdfIn PDF document text
    • https://danikobunib.weebly.com/uploads/1/3/4/7/134755608/mogugenebugixevak.pdfIn PDF document text
    • https://pixiguva.weebly.com/uploads/1/3/2/6/132681827/84b42546d00567.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368767/normal_5fe7ce061c9ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387033/normal_5fd8462fa0887.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/sezebepit/gatukajogujabugipif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bccd7d9b-bc30-4134-a927-d3556c1b5660/kuwifiwapov.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwotarotavuz/33197628746.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/51517477768.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/acer_swift_3_data_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95dfaf24-5488-4171-af1a-e95a4aaa0789/kujesi.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/blank_fraction_number_line_template.pdfIn PDF document text
    • https://s3.amazonaws.com/paxunu/bodybuilding_free_workout_plans.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_off0000d404.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD404 5600 bytes
SHA-256: bbcd74ea7eca2599c4b5cb2e2c02ca8cb21f5e62e22ad997e4a5dcf9a1761ec1
font_01_sfnt_off0000e6e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E6 10484 bytes
SHA-256: 7d753d1c6f8edda3f2148f967e49085d690e12653e3a4f4fb724f8b747e2d891