Malicious PDF — malware analysis report

Static analysis result for SHA-256 724f4084139488bf…

MALICIOUS

PDF

78.0 KB Created: 2021-02-12 05:57:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 70611f55e23d17668235c5f1374b1e24 SHA-1: af997a32754196332628e1fa4b0730367943b3b0 SHA-256: 724f4084139488bf71c6d863945c8381de954d33ded15da69030b9d82c7c620a
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://maypoin.ru/wb?keyword=top%2010%20android%20phones%202018%20india PDF link annotation
    • https://cdn.sqhk.co/kitolitik/hfeJn5c/68860079823.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415754/normal_602274603a1cc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451955/normal_5fc8488da7eaa.pdfIn PDF document text
    • https://cdn.sqhk.co/bubuzibiv/gqjjOjc/pajuniloxawukeli.pdfIn PDF document text
    • http://kosolibanun.iblogger.org/19327695545.pdfIn PDF document text
    • http://presentinsta.site/vebodakumotefiletoruredpjirh.pdfIn PDF document text
    • http://gouliwer.online/kurumefodurizowl4vf1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408004/normal_5ffd69af55a3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368266/normal_6011df94dcd56.pdfIn PDF document text
    • http://de-bewertung-id-q2e5t23.top/sukapunotixidarisapobutu01ocz.pdfIn PDF document text
    • https://cdn.sqhk.co/jifegusewe/8RHoKfA/bezekosinuluvo.pdfIn PDF document text
    • http://natlegend.space/15605216866ogxsa.pdfIn PDF document text
    • http://itawegan.space/39844507822v3mox.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495707/normal_5fc9177c901c9.pdfIn PDF document text
    • http://vemasujananexu.22web.org/belgaum_district_map.pdfIn PDF document text
    • http://idealica-italiauficiale.website/dejasutip5et7k.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rakikazava.rf.gd/xivupejukawebolotuju.pdfIn PDF document text
    • http://noxetowukamav.epizy.com/wafexapaluwadijijisu.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_off0000f355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF355 5484 bytes
SHA-256: b778b7f3a682921ac166ed42a3966b5494e450e78296316ae467eb2ab798b788
font_01_sfnt_off000105f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105F8 10872 bytes
SHA-256: 6f3d527e8d9a8deceedd05f85ade80e8b9c5a916c630bc0a7b4b6af20b847ae3