Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bbb5a28e4597527…

MALICIOUS

PDF

70.6 KB Created: 2021-02-25 18:41:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b9422ed3463fd00ac233ddb298e00053 SHA-1: 359e952e521df6b21c628d78151e82a41d0a938c SHA-256: 2bbb5a28e45975274da970ea0d2cd1a6247797d7cda9e62523b8b2c1d1f37037
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wb?keyword=how%20do%20i%20fix%20the%20power%20sliding%20door%20on%20my%20honda%20odyssey PDF link annotation
    • https://cdn.sqhk.co/pumopivosoba/ieIyggy/royal_caribbean_cruise_stock_forecast.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417138/normal_5fc94c34d1235.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467560/normal_601758fe9a129.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487894/normal_600357bedb714.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403119/normal_5fd670d4ba7d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420905/normal_5fd85527a9281.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420244/normal_6035751546fad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448719/normal_5ff900160cd99.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/bitajemisajoz/gemarapilinirerikadafen.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/duzasona.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/pukajegalaw.pdfIn PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/batman_arkham_city_highly_compressed.pdfIn PDF document text
    • https://s3.amazonaws.com/wutisigila/hp_battery_calibration_software_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/archeage_unchained_mage_leveling_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/bangla_cartoon_motu_patlu_video_3gp.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_off0000d5f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5F3 5676 bytes
SHA-256: 36984cae9a25e8053e6ec2203486a236112b47414f64466c2925f04e862b7b31
font_01_sfnt_off0000e932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE932 10520 bytes
SHA-256: 0760a3285f41ea7fdb0a74e9b7c34aa32e96d4c46eead064f80de28bacecba8a