Malicious PDF — malware analysis report

Static analysis result for SHA-256 03928378e0cfe44f…

MALICIOUS

PDF

69.6 KB Created: 2021-03-11 03:26:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f222c47f0c613a68846eb4c078f2b65c SHA-1: 97e08f96fb3eee4e87682d430c530926962e34e0 SHA-256: 03928378e0cfe44f5933992b53dec9b4df5a00b66d73baafa7c2c8ea20d022df
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jumiwimov.ru/award?keyword=car+engine+parts+diagram+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481156/normal_6041e20b427f5.pdfIn PDF document text
    • http://salleapp.xyz/into_the_wild_timeline_quizletu93yr.pdfIn PDF document text
    • https://cdn.sqhk.co/vumulevezuf/hb15Bqj/racing_post_racecards_results.pdfIn PDF document text
    • http://7gusevshop.website/background_for_editing_freehnuql.pdfIn PDF document text
    • https://juzowugaf.weebly.com/uploads/1/3/4/7/134773334/f0d7aaa11.pdfIn PDF document text
    • https://cdn.sqhk.co/karapenakozi/cjh0hjZ/undertale_skins_for_roblox.pdfIn PDF document text
    • http://lnstagramverifiedsbadgeforms.com/klasik_osmanl_mzii_mp3_indircmc5q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367299/normal_5ff66bcfaa4b1.pdfIn PDF document text
    • https://sokimazivad.weebly.com/uploads/1/3/4/6/134620474/sunoxob.pdfIn PDF document text
    • http://gramnews.xyz/74398199754x0whu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415537/normal_5fef9b297aacb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417305/normal_602d0755cfdfe.pdfIn PDF document text
    • http://brumbum2.xyz/vugibaxajenamotewnnna1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411246/normal_60249a8a9844b.pdfIn PDF document text
    • https://cdn.sqhk.co/dutudovajud/DPljhrx/12180813137.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/gupojakami/xfinity_android_app_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/nowonovege/74500204101.pdfIn PDF document text
    • https://s3.amazonaws.com/goveruduzewoxu/estudios_biblicos_para_adolescentes_cristianos_evangelicos.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_off0000d5a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5A9 5232 bytes
SHA-256: 4a3044fc40d4f1bc6a78ea83ba30a2820006cf63ab232801d2e32b4917f4fd3e
font_01_sfnt_off0000e75e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE75E 9984 bytes
SHA-256: 60f648958ca96c8c7ed2d43639e9ae538fc7495313d0d07d82f621527f7d7907