Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b7f2096383ed75e…

MALICIOUS

PDF

69.2 KB Created: 2021-02-27 16:59:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ef054c85cb8a8e35f840414b6e48141a SHA-1: dc36baa69858c67188e88b6154543e6c90dc0b4c SHA-256: 4b7f2096383ed75ef0f5557cf3c28095ab3e70b0f314f892bcdd402202a9e9d0
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://resalured.ru/123?utm_term=krav+maga+manual+pdf+espa%25C3%25B1ol+gratis PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4450160/normal_5fe93af0a2201.pdfIn PDF document text
    • https://cdn.sqhk.co/tokotuxajif/igiaHge/food_wars_season_3_dub_release_date_hulu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463803/normal_5fd1406acd7db.pdfIn PDF document text
    • https://lupirolawa.weebly.com/uploads/1/3/1/4/131453436/jogun-josum.pdfIn PDF document text
    • https://cdn.sqhk.co/pavuraxutem/jdSR4ii/zigzag_o_zig_zag.pdfIn PDF document text
    • https://cdn.sqhk.co/geroterunetu/wheIhhg/6963520909.pdfIn PDF document text
    • https://fafamamijusoma.weebly.com/uploads/1/3/4/3/134371196/nuxem.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448724/normal_5ff82f3e689e5.pdfIn PDF document text
    • https://vetitigozep.weebly.com/uploads/1/3/1/4/131437709/bonibikenun-nevoseparubijo-xulimezit-naruvoxunoxumo.pdfIn PDF document text
    • http://mmmmmme.space/score_counter_javascripthlwnr.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ditufadupogeju.epizy.com/55988012226.pdfIn PDF document text
    • http://mibodezoboro.rf.gd/kinerebusoxatuk.pdfIn PDF document text
    • http://bidogoko.rf.gd/apink_luv_mv.pdfIn PDF document text
    • http://disorasejazamu.epizy.com/bosemusevokexajapujiga.pdfIn PDF document text
    • https://s3.amazonaws.com/rabewiruzitewa/lg_soundbar_nb3530a.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_off0000ce86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE86 5600 bytes
SHA-256: 3b3d1f0733be95f9c21f16002d4bb00b63833fc37671524b1b9a649e92e9e19a
font_01_sfnt_off0000e14f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE14F 10912 bytes
SHA-256: f5026669122156c65ac24bcde341253838f92f4f32b29e95d0ae6ad3a9ed546f