Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cba6af8ee28f65f…

MALICIOUS

PDF

70.6 KB Created: 2021-02-28 05:38:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: aadfaf4871317a3d6a042f36d3790c7c SHA-1: b2955c971484aa6b4fc7fa9e5516fb87d5d73e0f SHA-256: 0cba6af8ee28f65f94a0466469bd5ea683561be51bff89ab8d4fc01006d45107
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://gimoguvi.ru/wb?keyword=how%20to%20use%20omron%20evolv%20blood%20pressure%20monitor PDF link annotation
    • https://cdn.sqhk.co/powosinubuk/gjGYhhv/sijiwukuporijolunanofufu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495985/normal_602dfcc883bba.pdfIn PDF document text
    • https://cdn.sqhk.co/dijowasedop/gVHgVld/cat_jump_starter_costco_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/xexerekija/bgdejcG/wanuwolomidesixesib.pdfIn PDF document text
    • https://cdn.sqhk.co/nobukomorur/XADgfG5/25895348559.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497344/normal_60283a84e0361.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371272/normal_60108f4ccbd0a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492575/normal_602a856e937dc.pdfIn PDF document text
    • http://wifunagidoli.mypressonline.com/wobipiwim.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386363/normal_5fdd9de08bd15.pdfIn PDF document text
    • https://cdn.sqhk.co/lolumebitana/0Tiggc5/fancy_pants_adventure_1_remix_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxosutuku/Wiegehc/project_management_methodologies_pmi.pdfIn PDF document text
    • http://rolopigabetitu.scienceontheweb.net/samsung_un28h4500af_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408355/normal_60226d10cfd8d.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/paxuvagal/85276123711.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_off0000d8b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8B2 5148 bytes
SHA-256: f38dbc8ada5a66625c8c631fc391e560b39ae6002dad72e26958e3cdc44701b7
font_01_sfnt_off0000ea28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA28 10244 bytes
SHA-256: 693ef5efe3cccb80c513387c750dfec29d885c49fbac1dc231ceb162062babb2