Malicious PDF — malware analysis report

Static analysis result for SHA-256 bab2a7150e948909…

MALICIOUS

PDF

72.1 KB Created: 2021-02-21 08:31:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1b142360f9c99c3da764dc2a73e1f5bc SHA-1: 32b1903e66d7f4823717a7413ca4fcb99a9a2eea SHA-256: bab2a7150e948909ebdcc2e1a754ecff07036bd24d02be1e7caf03bae9726e45
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://maypoin.ru/wix?keyword=unit+3+plants+study+guide PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4491445/normal_5fce37cb4009a.pdfIn PDF document text
    • https://cdn.sqhk.co/dibirolinu/fgpggOz/tatizoxajupivibaxezisuna.pdfIn PDF document text
    • https://cdn.sqhk.co/sexasegavon/RvJhhie/15390300878.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483365/normal_5fd110c1e4a9b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392667/normal_6012175c8a776.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481509/normal_602b7c251e3a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479902/normal_602055cc45cd7.pdfIn PDF document text
    • https://cdn.sqhk.co/demexadol/Uhgggib/9062197752.pdfIn PDF document text
    • https://cdn.sqhk.co/nubalevuvem/ahblgjE/diamond_digger_saga_level_105.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380674/normal_5fda06ebe3e05.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365583/normal_5fe270a1dfeaa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472501/normal_6009683c74747.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381082/normal_6025760477be5.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/mefonevimimix/adventure_games_list_android.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/38281226250.pdfIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/wiwopufilevaxogoweteviwod.pdfIn PDF document text
    • https://s3.amazonaws.com/votawawo/fijilor.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/kuxibagigefonuli.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/brinell_hardness_test_procedure.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_off0000dc6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC6B 5288 bytes
SHA-256: c4b62fb8a11b1b03c16fccd2c79845c0f3235b278787fe2375dc9dc8ff47baf3
font_01_sfnt_off0000ee88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE88 11084 bytes
SHA-256: adc30f52d48395ac40b1c00e46b18586e9103e83fb4d2a2dd9c7045a1a81d131