Malicious PDF — malware analysis report

Static analysis result for SHA-256 8407432aedba2f9f…

MALICIOUS

PDF

73.2 KB Created: 2021-02-15 14:55:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: effcfcd918548b174254fbb05ea4bf76 SHA-1: 56802dba88c67644c4c384582481b7e893c81b8f SHA-256: 8407432aedba2f9f9057336e0723fcdcc2130d94506e0472cc3669ad8bea375a
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://jottigo.ru/wix?keyword=baby+trend+expedition+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4403938/normal_5fe298556bf44.pdfIn PDF document text
    • http://callup.today/wunikafuxnu6da.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384320/normal_5fe33efec4bbf.pdfIn PDF document text
    • http://biomaniix.website/wubuzoditavenesozegoluxz1gw6.pdfIn PDF document text
    • http://greatholl.com/nipibevapopilemulujuzoroshonh.pdfIn PDF document text
    • http://petrol-v-pol-price.site/watch_kicking_and_screaming_movie_onhnowh.pdfIn PDF document text
    • http://net-klientov.ru/aramusha_guide_fradpfv.pdfIn PDF document text
    • http://okstore.info/addis_ababa_city_administration_13th_condominium_houses_winners_list8epe3.pdfIn PDF document text
    • http://batut.space/fepimirokidexoxupejorobelvno8r.pdfIn PDF document text
    • http://itwow.info/barbarians_at_the_gate_audiobook_freehibyh.pdfIn PDF document text
    • http://makamar.tech/bourgeois_gentilhomme_analysekej58.pdfIn PDF document text
    • http://sbrf.link/dopifutizubivovapiq2g8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/migivewuwe/71108942965.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cc83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC83 5168 bytes
SHA-256: 76f37fc2b536ebfa449161cd202dbae6f7a42cbcd258f07d7f0d7ae9052263c2
font_01_sfnt_off0000ddf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF7 14208 bytes
SHA-256: 06c0b02e68d4c444b1442d07bf810f6d4c2161db5be64124714ec3d58002d22f
font_02_sfnt_off00010a0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A0D 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3