Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f28aa3e7e1a21cd…

MALICIOUS

PDF

67.7 KB Created: 2021-03-03 18:45:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 117ae5d5ed8ef132d31cef165b56503b SHA-1: c7d1da615ae8f0ac486734997b3ca9889ceda251 SHA-256: 2f28aa3e7e1a21cdea149c89ce6cf40709dd9fa6339ee5a3cc846bed9c8bf9d0
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://dafemum.ru/wix?keyword=five+types+of+chemical+reaction+worksheet+answers In PDF document text
    • https://cdn.sqhk.co/vuveleni/jgAjDgg/41774199873.pdfIn PDF document text
    • http://baffer-shop.space/hoe_beveiligde_printen9d2li.pdfIn PDF document text
    • http://instapodarok.site/gta_5_highly_compressed_500mb_free_download_for_android2holy.pdfIn PDF document text
    • https://cdn.sqhk.co/seponidozit/ThiHgdu/elder_scrolls_online_werewolf_gameplay.pdfIn PDF document text
    • http://refowozawigut.22web.org/79524188883.pdfIn PDF document text
    • https://cdn.sqhk.co/wejuladuke/dgcVJic/56117963591.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401519/normal_601ceb273259c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464056/normal_602b8610658c0.pdfIn PDF document text
    • http://arfesopt.com/indoor_motocross_tracks_near_mehk07p.pdfIn PDF document text
    • https://cdn.sqhk.co/fexilejedit/tixsgh5/wovukebibodonixis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495059/normal_602b778ace10b.pdfIn PDF document text
    • https://cdn.sqhk.co/navimoxa/iiie8wb/gizebijesitusu.pdfIn PDF document text
    • https://cdn.sqhk.co/gadewekunel/gtQEQqP/fijukidimokalolojinimor.pdfIn PDF document text
    • http://xeeewq.xyz/muxafukixojuzepupijofb6mh.pdfIn PDF document text
    • https://cdn.sqhk.co/kavejufa/dmhSzjh/gigalife_apk_free_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jiviruzojid.epizy.com/rapubiduxunexipifimamuzo.pdfIn PDF document text
    • http://fuvarijes.atwebpages.com/913889124.pdfIn PDF document text
    • http://liwujurepawoweb.rf.gd/1999_bayliner_capri_1750_owners_manual.pdfIn PDF document text
    • http://tosogaxaf.rf.gd/gojifijefi.pdfIn PDF document text
    • http://falafujofubopes.rf.gd/tamitudujojikijagike.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ccdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCDC 5528 bytes
SHA-256: 9dd454389272e4ec53bc5ae30c4198615f61e6e6942554c9bab630078f1c16a4
font_01_sfnt_off0000df9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF9C 9796 bytes
SHA-256: dfb4366bcb60208f83de0135e8fb763b6b647c4489b4b5a688ce99adcaf457fe

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