Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5f00c98bd5ec463…

MALICIOUS

PDF

82.7 KB Created: 2020-12-26 18:49:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 181437b4b6d806875c3e860dd2ef6621 SHA-1: 766194f62ca50ac0c823a4c049f1816e71ea628a SHA-256: b5f00c98bd5ec463505916fe1d163732c8520d1f27d2745a7a93a0a63be2697f
96 Risk Score

Malware Insights

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

The PDF file, disguised as a diet and recipe guide, contains an embedded URI pointing to a suspicious domain. This suggests a phishing attempt to redirect users to a malicious website. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/aws?utm_term=edgar+cayce%2527+s+diet+and+recipe+guide PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4502493/normal_5fc53053adbc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454813/normal_5fa703790413e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422897/normal_5f9e7f73db396.pdfIn PDF document text
    • https://cdn.sqhk.co/supetuzitepi/Zjejhjf/wunot.pdfIn PDF document text
    • https://cdn.sqhk.co/dutebosatu/QifKii6/91454554630.pdfIn PDF document text
    • https://cdn.sqhk.co/pimibopugugo/ejgdRgi/90160095290.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384461/normal_5f8e3c647c721.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383334/normal_5fdc7f8666c89.pdfIn PDF document text
    • https://cdn.sqhk.co/febenanedibu/Bqhchie/pencil_sketch_art.pdfIn PDF document text
    • https://cdn.sqhk.co/dimumaneda/jcFdieE/ultimate_car_driving_simulator_gameplay.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379030/normal_5fbf0e01d4d62.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/mozedijiz/35531132382.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/stick_war_hacked_2_order_empire_2_hacked.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF942 5072 bytes
SHA-256: b45cdae51627c5d5db30ad59016d56ca84c8da9a59fa4edc77aab570b01abe34
font_01_sfnt_off00010a9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A9F 10908 bytes
SHA-256: b51e8156ea1e3c884220e3d0d592f41817ca1bde8e1e8f4363545b378610d247
font_02_sfnt_off00012f8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F8F 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2