Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3e4a11862da713e…

MALICIOUS

PDF

76.8 KB Created: 2021-04-03 06:07:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 9f404507d855d1ad8f1e5ee5159996db SHA-1: c92f454fa92bb0aba9c442e62af7d9a8536af15d SHA-256: c3e4a11862da713ed35376e4c3fa2417226fbcabbde4a01efa3d3319dd6a9951
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a phishing attempt. It contains an embedded URL that mimics a search result for a specific product, likely to trick the user into clicking it. The PDF structure itself does not contain executable scripts, but the presence of the malicious URL is a strong indicator of a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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://ponafet.ru/strik?utm_term=ao+smith+promax+water+heater+element+replacement PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4497658/normal_600877327bc76.pdfIn PDF document text
    • https://cdn.sqhk.co/sozodumupof/bicjj3V/xenazaxokevitoz.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/QjgjaJW/ponugexuxokiv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409110/normal_5fe17a5545d86.pdfIn PDF document text
    • https://cdn.sqhk.co/fefamujigip/X927hjj/curtain_track_installation_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/rijomawonuj/jdDxher/tiktok_hashtags_for_likes_and_views.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469143/normal_6040bdb57ae18.pdfIn PDF document text
    • https://cdn.sqhk.co/ludukuni/KWgdiha/68269944080.pdfIn PDF document text
    • https://cdn.sqhk.co/tijanukubo/jcvbie4/cube_life_island_survival_wiki.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388271/normal_5ffd110710638.pdfIn PDF document text
    • https://cdn.sqhk.co/sebutarukaw/bhhMjic/86554054010.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366028/normal_60146daa44367.pdfIn PDF document text
    • https://cdn.sqhk.co/tamoravuwera/fjgVgh8/coin_city_life_milano.pdfIn PDF document text
    • https://cdn.sqhk.co/kufagilan/ckhfagv/27315830537.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kokesatodixon/27128086697.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/74907321979.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/what_are_different_modes_of_heat_transfer.pdfIn PDF document text
    • https://s3.amazonaws.com/baposivarabuj/video_kartun_anak_islami_terbaru.pdfIn PDF document text
    • https://s3.amazonaws.com/wizidimawag/lenticular_sheet_india.pdfIn PDF document text
    • https://s3.amazonaws.com/zafaronivaj/despicable_me_2010_dual_audio.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/61716617573.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/24516940078.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/64029849087.pdfIn PDF document text
    • https://s3.amazonaws.com/mujesogi/3145208776.pdfIn PDF document text
    • https://s3.amazonaws.com/vasofirida/nibawumezugolufukodidefed.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/molunufezutilo.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/sole_e25_elliptical_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwosil/99997433932.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_off0000efa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFA4 5324 bytes
SHA-256: 5f9bda5c2e91d39ce0404e5c2e12a17524066dad9c7e95bed1e6b07611bd5820
font_01_sfnt_off000101a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101A3 10232 bytes
SHA-256: 648e059e19215c01682ce8694b18f3cead51803c5bf733768655a855049bd964

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