Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e76aafb6ea42964…

MALICIOUS

PDF

72.8 KB Created: 2021-02-27 03:45:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5bdc0227a923ea65199295b2ef0fe7b1 SHA-1: 8b0bea9129eefb5fd43191d58bd4fab9ff62b259 SHA-256: 0e76aafb6ea429648256547ba099a732cbd9e76bf7fe506e5b23c0c0d3162bdb
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://dugedepap.ru/award?keyword=best+programming+books+for+beginners+reddit PDF link annotation
    • https://cdn.sqhk.co/totafeta/hh9xW25/retrograde_amnesia_psychology_example.pdfIn PDF document text
    • http://mikovil.mywebcommunity.org/46686988044.pdfIn PDF document text
    • http://businessoutsourcing.info/30422362030jglsb.pdfIn PDF document text
    • https://cdn.sqhk.co/wugoxoxowex/AibWjdS/teacher_appreciation_week_2019_houston.pdfIn PDF document text
    • https://nagajaburelu.weebly.com/uploads/1/3/2/7/132740350/8816478f71a52.pdfIn PDF document text
    • http://steelsho1.club/sufevizy7q2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481424/normal_600b6fa5706af.pdfIn PDF document text
    • https://cdn.sqhk.co/dukosisevu/hgjjhMT/ronokeza.pdfIn PDF document text
    • http://1cats.space/crunchyroll_manga_download_apk7anhk.pdfIn PDF document text
    • http://sis-paypal.com/born_to_be_wild_chordsr78c6.pdfIn PDF document text
    • https://cdn.sqhk.co/webunojixisa/jahcjeI/econfigure_knx_lite_price.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473903/normal_5ff664da1af31.pdfIn PDF document text
    • https://mobefoba.weebly.com/uploads/1/3/0/7/130776725/zesokup.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421468/normal_5fc8eb6f319df.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xerevim.epizy.com/english_speaking_topics_for_intermediate.pdfIn PDF document text
    • http://zedotedifajo.epizy.com/vildagliptin_metformin_hcl_side_effects.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_off0000dfc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFC2 5584 bytes
SHA-256: 183aa9e663d3070ea4904081eec6563338cc6823f125644e57cc14c66564f334
font_01_sfnt_off0000f2ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2AE 10332 bytes
SHA-256: 812196ebd469a7566fe93f261858908668c74286d2db7ead0a706f624c54bdb9