Malicious PDF — malware analysis report

Static analysis result for SHA-256 4044f335c0a9b863…

MALICIOUS

PDF

63.0 KB Created: 2021-03-01 09:49:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 295ae5d72c4d47b6dbddb5c32b6e4b8a SHA-1: acb7f00796e655520e2ff826576c6c49f64982d5 SHA-256: 4044f335c0a9b8638183bd1cf9bf3aa32acfecb3510c64f5331920311126af8c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=clarkston+wolves+football+twitter PDF link annotation
    • https://cdn.sqhk.co/nupumusu/diiicWb/f1_mobile_racing_download_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/wugunifikezu/orhglwC/7521839625.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481663/normal_602697f5e4ebd.pdfIn PDF document text
    • https://cdn.sqhk.co/dezorevukor/Tnakshe/despacito_ringtone_for_iphone_free_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449395/normal_5fefc24239279.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456119/normal_5ff408d218ab3.pdfIn PDF document text
    • https://motefeka.weebly.com/uploads/1/3/4/1/134108707/gazirititovuxuz_jigojos_xezasabuj.pdfIn PDF document text
    • http://jogegeve.22web.org/danielle_steel_all_that_glitters_large_print.pdfIn PDF document text
    • https://cdn.sqhk.co/wuseguwe/heiges0/agile_methodology_swot.pdfIn PDF document text
    • https://cdn.sqhk.co/nimuxugemu/0Xq0vij/90660943595.pdfIn PDF document text
    • https://cdn.sqhk.co/junigofulum/j8LgjbJ/game_troll_adventure_2.pdfIn PDF document text
    • https://cdn.sqhk.co/dopuwene/ZCZM1nK/pavogimij.pdfIn PDF document text
    • https://dimazemoredexi.weebly.com/uploads/1/3/5/3/135309177/zefitor_zimapolotegasen_nanovabe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tutivute.epizy.com/besax.pdfIn PDF document text
    • http://gusojabij.epizy.com/31665794914.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzakob/offline_english_grammar_checking_software_free.pdfIn PDF document text
    • http://zopimubusa.rf.gd/45249147478.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/movafesugedekigetilobeseb.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/autodesk_sketchbook_app_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/bulalowisu/battery_doctor_app_old_version.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_off0000bea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEA4 5024 bytes
SHA-256: 5683e206e27894c03cc6427bada7d51a7e3a216b71e63296532eb8da93a50a55
font_01_sfnt_off0000cfe0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE0 9132 bytes
SHA-256: 9a1d332b8f00d30a8bbbf560e40451c0eed4371761465434d3c2ae81ce02cd8f

Open this report in the interactive analyzer, or submit your own file for analysis.