Malicious PDF — malware analysis report

Static analysis result for SHA-256 68f18c881fffd4a0…

MALICIOUS

PDF

68.1 KB Created: 2021-02-04 18:51:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 65b50afc4b07128f7a40636724eadd5a SHA-1: fcbdd107e0f439e7aeb7bb5be978ebfe8b78b5b7 SHA-256: 68f18c881fffd4a0db3fc40fbafb574c77c8709798ee00a83580b29b33ae79ec
126 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
  • 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://jacksth.ru/wb?keyword=wicked%20flee%20carter%20burwell%20sheet%20music PDF link annotation
    • http://magnitoli-2ekran.site/3313322411j21dw.pdfIn PDF document text
    • http://arfesopt.com/pdf_books_free_punjabivq6m3.pdfIn PDF document text
    • https://cdn.sqhk.co/jumifokujuje/9sPghge/fifa_world_cup_2018_schedule.pdfIn PDF document text
    • https://totijavefukaja.weebly.com/uploads/1/3/4/7/134705726/gexixuru.pdfIn PDF document text
    • http://titofiz.22web.org/corporate_email_newsletter_templates_free.pdfIn PDF document text
    • https://cdn.sqhk.co/fedelubu/5pIhage/46666206332.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470205/normal_5fe117e3d8eed.pdfIn PDF document text
    • http://furogoverakafex.22web.org/35748104627.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426699/normal_5fda67c9d307e.pdfIn PDF document text
    • http://sputnews.com/expanse_cast_season_1_episode_1s0boc.pdfIn PDF document text
    • https://xopigitit.weebly.com/uploads/1/3/4/3/134339451/6605425.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487424/normal_5ff669084ac29.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://regigaxuwejizu.epizy.com/bandook_ke_photo_ing.pdfIn PDF document text
    • http://tasukifuputuf.epizy.com/signup_page_bootstrap_template.pdfIn PDF document text
    • http://kotutuvotijol.rf.gd/autoresponder_para_wa_apk.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_off0000ca91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA91 5572 bytes
SHA-256: c4b3ac304e4226222269907a6d789da83498bf63b503db8d8466a83ef0c0d3a1
font_01_sfnt_off0000dd75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD75 11204 bytes
SHA-256: 476152b28410c6e2ed1e1e15d9a0525a794328d48c7d8f21a831f6e4928af215