Malicious PDF — malware analysis report

Static analysis result for SHA-256 091fac5c60e2090c…

MALICIOUS

PDF

72.1 KB Created: 2021-02-26 19:14:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6f7635cf37882b05c66ba14e29195784 SHA-1: 8b7e5ec9f276ad9cd5a42508650affc600172b0a SHA-256: 091fac5c60e2090c04227117d0c77daab4f23a1fadbf6630980365de654c350d
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://lozipotod.ru/award?keyword=how+do+you+fix+a+kenmore+ice+maker PDF link annotation
    • http://rubewox.sportsontheweb.net/vamirusesezi.pdfIn PDF document text
    • https://cdn.sqhk.co/delopomixaba/ihbijXm/kejikakox.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410727/normal_6037525eef73a.pdfIn PDF document text
    • https://cdn.sqhk.co/vizodejo/2Fhd402/71198241712.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476416/normal_602a52ed57120.pdfIn PDF document text
    • https://cdn.sqhk.co/wapadofiwe/4Zfhbih/instant_mobile_top_up_worldwide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370540/normal_6008e4a457622.pdfIn PDF document text
    • https://cdn.sqhk.co/koxixoneto/hcEHgc9/26432301860.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402261/normal_60097ed6a09e3.pdfIn PDF document text
    • https://cdn.sqhk.co/baxorurifina/dEhcxji/super_smash_2012.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374360/normal_5ff64e9ed6fd6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424981/normal_5ff8b2f364dbb.pdfIn PDF document text
    • https://cdn.sqhk.co/zesonixiv/hbahbDx/bomber_jacket_leather_sofa.pdfIn PDF document text
    • https://cdn.sqhk.co/mekaxosur/ckgh0jk/s_word_wallpaper_hd_love.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489422/normal_5fe5f605f03c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384459/normal_60322104c2e9b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374013/normal_5ffdd330e29f5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vubelifijam.atwebpages.com/57413766852.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_off0000de8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE8A 5244 bytes
SHA-256: 0bed0725bee7d0a2676f0c7e3a4c2064db1479b1a6df36e55941bbbb74e589aa
font_01_sfnt_off0000f06c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF06C 10252 bytes
SHA-256: ecaa305eefda663beb0e892e670d4f9be3f604d0a880f143d71ee1badd4a69e4