Malicious PDF — malware analysis report

Static analysis result for SHA-256 f17a91d0dd45a41c…

MALICIOUS

PDF

70.0 KB Created: 2021-02-20 04:25:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: da75c1787dd9ca195a739339e321073d SHA-1: d974ddead0781d881b987fb1a6293b7dc83c8afd SHA-256: f17a91d0dd45a41cda1ca7cd844def4419e337abdfc2b1c665079717f5896d30
96 Risk Score

Malware Insights

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

The PDF was flagged by ML classifiers and ClamAV as malicious. It contains an embedded URL, 'https://leonvi.ru/wix?keyword=leah+itsines+tzatziki', which is likely intended to redirect the user to a phishing or malware distribution site. The document body appears to be obfuscated or corrupted, preventing a clear understanding of its content, but the presence of the malicious URL and the high confidence verdict strongly suggest a phishing or credential harvesting attempt.

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://leonvi.ru/wix?keyword=leah+itsines+tzatziki PDF link annotation
    • https://cdn.sqhk.co/durotula/hfieW3C/unblock_my_car_online.pdfIn PDF document text
    • http://mavito.online/pozonuxobutojifiwutegofmnimd.pdfIn PDF document text
    • https://cdn.sqhk.co/fujalapevame/ciKgdii/funky_kong_minecraft_skin.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447460/normal_5fee99fc9a79c.pdfIn PDF document text
    • https://cdn.sqhk.co/mujawiru/Shgghhd/48457261774.pdfIn PDF document text
    • http://detonicinitalia.website/what_is_the_free_cash_flow_formula_in_accountingjebru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369520/normal_602fc10e60673.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471488/normal_602dcb4d033e1.pdfIn PDF document text
    • http://stickerrus.ru/youtube_tv_nfl_games_2019pemrq.pdfIn PDF document text
    • http://pomirkapa.site/67978830508c3cdq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475559/normal_5fdbb4d870c3c.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/gotitibekovi/film_actor_resume_format.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/checkpoint_ccsa_study_guide_r80.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/verbal_bullying_thesis.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/choo_choo_maari_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/consumer_reports_best_beds_for_couples.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/bluestacks_old_version_for_2gb_ram.pdfIn PDF document text
    • https://s3.amazonaws.com/bitajemisajoz/noladafiger.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/57380399170.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_off0000d7b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7B0 4700 bytes
SHA-256: f26cb807305536c490cbef914e191c10ad3097ff87a1b21b7efd9d17fad6454b
font_01_sfnt_off0000e7b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B7 10276 bytes
SHA-256: f2852a42b991bccb6ddb8a6d48d2682497ddd2c3b2d0e375de3f9384c2677181

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