Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b5afcb6fd85b347…

MALICIOUS

PDF

108.1 KB Created: 2021-04-07 08:24:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c08bb8c3b2d6f23ef1059deaea8efeb0 SHA-1: efe67725ddf38bfbe822b89473cab9a84e91ef45 SHA-256: 5b5afcb6fd85b347cd9fb271c7ad844ee8f731504336bcf073d2ee7e471f05bc
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://resalured.ru/wix?keyword=the+great+summoner+competition+deck+plan PDF link annotation
    • https://cdn.sqhk.co/korebuxaguz/flhfggX/mojejibalojamozifelon.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484122/normal_601039a214fe1.pdfIn PDF document text
    • http://tadajixilatu.scienceontheweb.net/92249368529.pdfIn PDF document text
    • https://cdn.sqhk.co/jipobuxaza/mjeDFhb/encyclopedia_americana_1958_edition.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445343/normal_600e610318b37.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370273/normal_5febf40e182ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452595/normal_6063142a3be90.pdfIn PDF document text
    • https://cdn.sqhk.co/xovatagemi/hbRhihc/sepotolirodapezod.pdfIn PDF document text
    • http://bagomebefekixob.getenjoyment.net/dungeons_and_dragons_5th_edition_unearthed_arcana.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375908/normal_5fc85b191e182.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/bivanud/31205077604.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/cercle_trigonomtrique_exercices.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/jezesenobuwi.pdfIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/how_do_i_use_the_speakerphone_on_my_doro_7050.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/channel_2_news_orlando_reporters.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19cd7402-af20-47f1-a94e-a5ca7a9ccf61/28955752593.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5966131b-0ad3-4a32-b5b0-4c7ec237a7b3/maytag_bravos_xl_mvwb835dw_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/positive_negative_number_line_worksheet.pdfIn PDF document text
    • http://jibimom.myartsonline.com/83630176763.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51d89ab8-781d-4c7b-90d4-f742a5844e21/64313574702.pdfIn PDF document text
    • https://s3.amazonaws.com/xotomisen/masque_of_the_red_death_clock_quotes.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_off00015f44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15F44 5384 bytes
SHA-256: 875f414e9f4c4e7595cccffe418515d342bd900076c95933d21b9ea2d6627fd0
font_01_sfnt_off00017171.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17171 10388 bytes
SHA-256: 0d78147b8d93169225ac0c68ba72106ee1cc78a3d68ddebb23a0fcf20301d5d9
font_02_sfnt_off000194b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x194B5 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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