Malicious PDF — malware analysis report

Static analysis result for SHA-256 22ec588dbdb82d24…

MALICIOUS

PDF

71.2 KB Created: 2021-03-04 10:50:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d52864f6cf6fd17d842475041cb58c58 SHA-1: 2b9a226c94edf911c01d8fc03ab9df9e60ac3ea8 SHA-256: 22ec588dbdb82d24c294d10e8a265e775d3325506c4876fa7125cc2dc9ceb0bd
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://midufefew.ru/award?keyword=technical+analysis+book PDF link annotation
    • https://cdn.sqhk.co/jabosuve/oPXsVij/dragon_raja_pc_requirements.pdfIn PDF document text
    • http://naturfresh.fun/rebilmd33m.pdfIn PDF document text
    • http://all-host.site/93388421254nbzsu.pdfIn PDF document text
    • https://cdn.sqhk.co/mekibekowufe/UPgdHgh/60867562937.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410730/normal_600fb8fb3a5eb.pdfIn PDF document text
    • http://xelamoxadavas.mywebcommunity.org/la_la_land_soundtrack_vinyl.pdfIn PDF document text
    • http://autolombardpro.ru/77585501445wqjdu.pdfIn PDF document text
    • http://grenkasalo4.xyz/rexawilojudekamea48b9.pdfIn PDF document text
    • http://bigchance.pw/43968998600w6w9p.pdfIn PDF document text
    • https://cdn.sqhk.co/zifeduwa/jULihaa/green_bean_casserole_with_cheese_pioneer_woman.pdfIn PDF document text
    • https://cdn.sqhk.co/xevowuto/iixidhd/cheating_tom_2_trailer.pdfIn PDF document text
    • https://cdn.sqhk.co/susiwebuvowo/k6hiiKh/16976333044.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499999/normal_602f96cf65ba5.pdfIn PDF document text
    • https://cdn.sqhk.co/wimiwupo/hb5Afhi/freeway_honda_service_phone_number.pdfIn PDF document text
    • https://cdn.sqhk.co/bexefoboxevi/gghjdjk/svar_impulse_response_function_eviews.pdfIn PDF document text
    • http://legendarycraft.ru/lezatodajiruluzijavoracvyoo.pdfIn PDF document text
    • https://cdn.sqhk.co/giruzegovu/jghiMgg/fofolobamenagerogevenejag.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dd53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD53 5048 bytes
SHA-256: a572d79fa39ec4e54f1690733a9e7d378a5e336a760902c047fcbaa30c95816c
font_01_sfnt_off0000ee85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE85 9868 bytes
SHA-256: 0e6d683c876f027f3082f530499d5927e62e52374ff45a48002e60ca8f842038