Malicious PDF — malware analysis report

Static analysis result for SHA-256 3343b71dd34cf858…

MALICIOUS

PDF

71.6 KB Created: 2021-03-01 23:48:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7a9d434a0b5159a67226cb6210bcdb3e SHA-1: d8e9acf26dbf3e3ccd097d1e4de7e1c643a08c14 SHA-256: 3343b71dd34cf8581c5624e8e8785bf6bae0385a92b089801206b83406d0af92
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://resalured.ru/wix?keyword=matsu+psx+apk+download PDF link annotation
    • https://cdn.sqhk.co/dagosasojo/hhshg5A/rutidug.pdfIn PDF document text
    • https://gimitowogavu.weebly.com/uploads/1/3/4/7/134746983/jetukumujisidixi.pdfIn PDF document text
    • http://hookup157.fun/merchant_of_venice_translation_download0oolp.pdfIn PDF document text
    • https://cdn.sqhk.co/jejefudebuxi/tiaggjI/wemodinajumelo.pdfIn PDF document text
    • https://cdn.sqhk.co/nivavepe/b2hgSU7/wotedijom.pdfIn PDF document text
    • https://tizijepen.weebly.com/uploads/1/3/4/2/134234944/6690699bfaa.pdfIn PDF document text
    • http://tryraisins.club/afro_asian_literature_download5gn2i.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485702/normal_5ff51e0cd67b4.pdfIn PDF document text
    • http://kinorio5.xyz/chrome_os_android_apps_full_screens6n8r.pdfIn PDF document text
    • https://cdn.sqhk.co/dabozijide/dhaPiH5/hop_ball_3d_crazy_games.pdfIn PDF document text
    • http://shoop-fl.ru/ldpe_bags_manufacturing_project_report2lbv3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419818/normal_601b1f3aa79f1.pdfIn PDF document text
    • https://cdn.sqhk.co/vixuzemabad/hajbagi/sport_racing_cycle.pdfIn PDF document text
    • https://cdn.sqhk.co/lixejudazeza/fievt5O/94905077004.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465400/normal_5fce8f7b49f43.pdfIn PDF document text
    • http://gazzsheff.xyz/gedizorusujelusafclbha.pdfIn PDF document text
    • http://xafesuvorolivig.scienceontheweb.net/rca_universal_remote_codes_surround_sound.pdfIn PDF document text
    • https://vuderuxedus.weebly.com/uploads/1/3/4/6/134692959/2771520.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452839/normal_5fe0ff1cc354d.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzosexiwugu/g7rEhch/lodutejovobolu.pdfIn PDF document text
    • http://ravigimojamel.mypressonline.com/babus.pdfIn PDF document text
    • https://tudegikugil.weebly.com/uploads/1/3/5/3/135317618/7169012.pdfIn PDF document text
    • http://mukinumatonewo.getenjoyment.net/wixezowi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://faxiruvud.myartsonline.com/genie_pro_screw_drive_learn_button_location.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_off0000dc21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC21 5088 bytes
SHA-256: 8201fa31606ee7c3c5b6d69b4dc999fd00427dfa77763be93ddb2007deb0c3ad
font_01_sfnt_off0000eda5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA5 10304 bytes
SHA-256: 3016d73e16ae708e0665a6a18efb5d6bf0215f81a6f64b8b44ef80d950f3a590

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