Malicious PDF — malware analysis report

Static analysis result for SHA-256 bebeb2f9b84afd10…

MALICIOUS

PDF

80.0 KB Created: 2021-02-28 14:24:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 2eab909ffa5eb1e39a62b62db2225429 SHA-1: d3086b195a001da740dfe5c309a0a54c8850b00a SHA-256: bebeb2f9b84afd10841980ee70acb6443fa9017e541f84aab661b30c9ecb7415
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, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI suggest an attempt to exploit user curiosity about delivery times to redirect them to a malicious site.

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://jumiwimov.ru/strik?utm_term=what+is+the+average+delivery+time+for+standard+mail PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4416938/normal_60064084f18ea.pdfIn PDF document text
    • https://cdn.sqhk.co/lafuwexale/KCieNhc/ant_killer_terro_amazon.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489264/normal_5fdc70d04c835.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452199/normal_5ff145e863450.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368238/normal_600f82c7546c7.pdfIn PDF document text
    • http://xaxikobovivo.22web.org/aspects_of_culture_in_sociology.pdfIn PDF document text
    • https://cdn.sqhk.co/manaruparil/iii5xja/zagurigob.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421787/normal_60206f7159a71.pdfIn PDF document text
    • https://cdn.sqhk.co/nanijamu/tichjIp/80881219378.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://diretivik.rf.gd/bloodborne_defiled_chalice_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/49911199757.pdfIn PDF document text
    • https://s3.amazonaws.com/figidireki/craftsman_6.75_hp_lawn_mower_air_filter.pdfIn PDF document text
    • https://s3.amazonaws.com/fejenijovekozu/chat_alternative_apk_old_version.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/spotify_premium_apkreal_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/adobe_reader_for_android_older_version.pdfIn PDF document text
    • http://zumoriko.epizy.com/nexufutewijizigofofosi.pdfIn PDF document text
    • http://fozidunaleral.rf.gd/87183624190.pdfIn PDF document text
    • https://s3.amazonaws.com/wujanozo/32634064996.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_off0000f96c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF96C 5496 bytes
SHA-256: 1d96eff5679d973805d16163854cd76229d00f9f97112732b605f71b4f16e088
font_01_sfnt_off00010c09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C09 11476 bytes
SHA-256: 0cee8291a41b3b0319952e4cfba34e785f538b58d38d359a815a9d28760219df

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