Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6ce0f20f4b0cee4…

MALICIOUS

PDF

91.0 KB Created: 2021-03-07 21:23:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cd08cb2f6dd9232f713d001d26573b8f SHA-1: 7e29906b615fe9655bc74372d7c7159af1e6ff05 SHA-256: e6ce0f20f4b0cee48470e960f51959da108e0d30f2be855c68107742ff76d0df
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that redirects to a suspicious domain, identified as a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to lead the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jumiwimov.ru/strik?utm_term=echo+pb+250+carburetor+adjustment
    • https://cdn.sqhk.co/sututidogo/iagd9hh/21672752358.pdf
    • http://appeal-ig.com/cuales_son_los_sintomas_de_la_variante_del_covid_19xrkr9.pdf
    • http://rubka.space/2829317033785euu.pdf
    • http://mosquito.codes/silapukazoboxidubegouexa2.pdf
    • http://habirovradik.ru/fedomokajagikolom7u5e3.pdf
    • http://ifeelgood.club/transformacion_de_energia_cinetica_a_potencialwa9x2.pdf
    • https://cdn.sqhk.co/loberutebe/igHIieH/ridugokisavipubeva.pdf
    • https://cdn.sqhk.co/bevoroxur/nijvggm/painting_with_a_twist_east_orlando.pdf
    • http://regsenatvumen.website/61416923196x5hhr.pdf
    • http://xiluzoxasefeb.iblogger.org/xejuku.pdf
    • http://naturwows.space/tas_rendez_vous_sous_ltoilesjezx.pdf
    • https://cdn.sqhk.co/revipidamog/H2eghjh/groupon_free_shipping_promo_code_2019.pdf
    • http://fakts.design/buwujewisipibx18vc.pdf
    • https://cdn.sqhk.co/wixefawoz/jfUjihd/beast_quest_game_free_online_play.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://e8e87dc5-637d-47ba-9de6-e7d98d123d78.filesusr.com/ugd/a69a03_2db4d2721fc44ba9867861600e917a74.pdf?index=true
    • https://fbaba6ab-37cf-477f-82bd-e10a416eccda.filesusr.com/ugd/3c8574_1e42a334ab0a481e829de5ea1c0f3172.pdf?index=true
    • http://kosener.epizy.com/69246953407.pdf
    • https://1a447ccf-a6a5-490c-ad31-399ae8169532.filesusr.com/ugd/cf5184_4a07896cfac24fc086816f011c2dbdbe.pdf?index=true
    • http://dunupepemogakiw.epizy.com/zikepere.pdf
    • https://b01ec662-dec5-4f54-b977-8708717d6054.filesusr.com/ugd/07e02c_eafc653a59f14b8883690519fc62d2d2.pdf?index=true
    • https://6f84c080-6bd2-4154-8ce1-0e390380bda5.filesusr.com/ugd/defdb4_00415eaf258349a6ae09e814779b76af.pdf?index=true
    • https://06ebba1c-c738-45d4-b58d-83edbdcc9420.filesusr.com/ugd/b14caa_66ede6a171cf41e9a1cc9dbbd4d1a394.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000116a6.bin
9cb5f321876577ea62e06fbaeccbc70dd04cb6b9d67c1a08788a751ba1a8d3d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x116A6 5684 bytes
font_01_sfnt_off000129d4.bin
f5fd161f0249e4340b41e56c1a776bb34f615ddcb5ab9c17a9a9b7af9424f5ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x129D4 11496 bytes
font_02_sfnt_off00015080.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15080 4324 bytes

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