Malicious PDF — malware analysis report

Static analysis result for SHA-256 06588cd7cb273f22…

MALICIOUS

PDF

76.2 KB Created: 2021-04-30 02:15:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 21092c9f8c92e72052054d941d83cb4e SHA-1: 72ef2b0580d5f213360d3d61be6095cdd80f9a2f SHA-256: 06588cd7cb273f221812c2df54f9d306b66ed1dec449193ccb1f6dc4eb5b09bd
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. It contains an embedded URI pointing to a suspicious domain, likely intended to trick users into clicking it. The document body, though heavily obfuscated, suggests a lure related to appliance repair, further supporting the phishing pretext.

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://botokaw.ru/strik?utm_term=maytag+front+load+washer+door+stuck PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4445881/normal_601da793bc607.pdfIn PDF document text
    • http://xazupadapafow.mypressonline.com/bartleby_el_escribiente_analisis.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisidumes/6MPig0v/8149238715.pdfIn PDF document text
    • http://reawolt.online/2234148985qsglj.pdfIn PDF document text
    • http://rezokivi.medianewsonline.com/dokotenoneseribakesuz.pdfIn PDF document text
    • http://pedron.fun/28951181519oihod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420018/normal_6024340963270.pdfIn PDF document text
    • http://sweetygirl.club/82635692602osd9x.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/jgirgdK/niwatufaxabopove.pdfIn PDF document text
    • https://cdn.sqhk.co/xedaberetaj/giIghK9/xawojofatusaruzemebexomek.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/fulazelof/tenusokazitotixud.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/konirezekojobeb.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/radical_candor.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/enable_usage_reports_sharepoint_2013.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/straight_razor_vs_safety_razor_vs_disposable_razor.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_off0000ecff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECFF 5548 bytes
SHA-256: 7e4c59ad02551319429ef0cbe6ebe48f4447d33a47ec2c93fc718eebb4f9d1f9
font_01_sfnt_off00010002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10002 10580 bytes
SHA-256: 02f3e25b6d79f87531eea11f59e538c393b6c91acb7c64b758b2fc0f389d2576

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