Malicious PDF — malware analysis report

Static analysis result for SHA-256 4326d658f68b2f6d…

MALICIOUS

PDF

59.5 KB Created: 2021-01-25 22:07:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f34aec3114c6db97d43a933d8b86061c SHA-1: 5dc95a035248e06a4e5734f47d0f9977b76942ef SHA-256: 4326d658f68b2f6d5040a36d591340613943878fbaf916fb5022f67316758a95
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://seumenha.ru/wb?keyword=early%20bird%20turkish%20drama%20ringtone%20download PDF link annotation
    • http://affilateapp.online/dopiweluvabiwokolininu96djo.pdfIn PDF document text
    • https://jesisime.weebly.com/uploads/1/3/4/8/134886507/ad068c9b83ee540.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420237/normal_5fd1aee91897a.pdfIn PDF document text
    • https://xefikusog.weebly.com/uploads/1/3/5/3/135390274/4199542.pdfIn PDF document text
    • http://nuveclovet.xyz/mokawzucpn.pdfIn PDF document text
    • http://golosa-spasibo.ru/444566622632wlmg.pdfIn PDF document text
    • http://kzrovk.xyz/traffic_road_game_onlinejkpum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475196/normal_5fd2d1463ff62.pdfIn PDF document text
    • http://geekcods.com/53736686642xpfl1.pdfIn PDF document text
    • https://cdn.sqhk.co/vipujitebiki/dVQgiN9/moviebox_hd_movies_and_tv_shows.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403119/normal_5fd67102b34f5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388163/normal_60072a5c5e91a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zorijofoxafa.epizy.com/bedepupidodix.pdfIn PDF document text
    • http://xakosafejel.epizy.com/myocarditis_treatment_guidelines.pdfIn PDF document text
    • http://rawozenagi.epizy.com/96584018870.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_off0000af38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF38 5596 bytes
SHA-256: b95ed9935b158c1cdab6cc044d264a2e027113d977fe893636d5e02cb8d50800
font_01_sfnt_off0000c231.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC231 9208 bytes
SHA-256: 8585e1332851fb5c904d75da09c9f70915af2fad338574c0976288fe2cf412bc