Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f1a3ead7b512c99…

MALICIOUS

PDF

71.1 KB Created: 2021-02-13 12:07:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 4eb34079637d71a3df85bd95a6e5d848 SHA-1: 0baa8a01e59ddd7118273442f9068d9ba8d8c685 SHA-256: 4f1a3ead7b512c99c56640be19cdc8424a88b4a12f9e4e12ac508e371f86294e
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://baarspo.ru/wix?keyword=falling+for+the+ghost+of+you+pdf PDF link annotation
    • http://fajikiviwakux.22web.org/fight_club_movie_dual_audio.pdfIn PDF document text
    • http://hushseo.online/los_pinguinos_de_madagascar_pelicula34jsx.pdfIn PDF document text
    • http://strapslap.online/lords_mobile_familiar_guidel9ndj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445118/normal_6009f7a39fbfc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420743/normal_5ff1d3027cfd3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415531/normal_5fc8ad10b12ab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469640/normal_5ff764f1e4c92.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474456/normal_5ff30314d1579.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/murudute/topshop_skinny_jeans_size_guide.pdfIn PDF document text
    • http://malinaliwul.epizy.com/27863387995.pdfIn PDF document text
    • http://tipunif.epizy.com/poweredge_r730_datasheet.pdfIn PDF document text
    • http://fusezumapaj.epizy.com/95879833636.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/75244231338.pdfIn PDF document text
    • http://rekabalukog.rf.gd/1161989485.pdfIn PDF document text
    • https://s3.amazonaws.com/zozuxukoxo/97730925326.pdfIn PDF document text
    • http://bivujugekoxuso.rf.gd/serigow.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_off0000d972.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD972 5360 bytes
SHA-256: 0536e3a83085c92ad3ca2b852357d609d644acb5e580c18b98bc5a7f5cc3b146
font_01_sfnt_off0000ebb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBB5 10420 bytes
SHA-256: 15c916c46fca9e2e19a8920bb25f7fabbb5cb026ab7fa871b23ed69ae5910368