Malicious PDF — malware analysis report

Static analysis result for SHA-256 98b2ddae005895f1…

MALICIOUS

PDF

71.4 KB Created: 2021-02-27 04:00:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 47b392652c9d5c3110abedde778295d6 SHA-1: 170d32829c932964c1ea96b5e3e1b246783a84e1 SHA-256: 98b2ddae005895f13be4e9190f02703f838cca3f3674debe5bea83d40ed6c76b
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to trick users into visiting a harmful site. The embedded content and heuristics suggest a phishing or malware distribution lure, likely disguised as a document download. No scripts were extracted, but the PDF structure and URL are strong indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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/award?keyword=behringer+xenyx+2442fx+manual+pdf+download In PDF document text
    • http://busibear.com/16794870016w0ew0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369936/normal_5fd137157654c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489429/normal_5fe80a6ad2b5f.pdfIn PDF document text
    • http://manovina.mypressonline.com/mipuvarusixibikawik.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/xonobijikivo/126039313.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/15882747644.pdfIn PDF document text
    • http://lizusesujujes.rf.gd/danganronpa_2_chiaki_answers.pdfIn PDF document text
    • http://daferavore.epizy.com/free_sheet_music_for_guitar_christmas.pdfIn PDF document text
    • http://wevikokuzufos.epizy.com/garmin_mapsource_south_africa.pdfIn PDF document text
    • https://s3.amazonaws.com/suzujewa/xenovotevemefovanirat.pdfIn PDF document text
    • http://dewudirana.epizy.com/tavidamutakokepu.pdfIn PDF document text
    • http://bajokekez.epizy.com/fdot_traffic_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/bilanzanalyse_excel_kostenlos.pdfIn PDF document text
    • http://bodegifu.atwebpages.com/how_to_become_an_operator_for_chick-fil-a.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/6722682384.pdfIn PDF document text
    • http://jasunusemoki.onlinewebshop.net/devops_handbook_audiobook_download.pdfIn PDF document text
    • http://gogujigasad.onlinewebshop.net/eureka_forbes_vacuum_cleaner_service_centre_trivandrum.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_off0000d934.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD934 5808 bytes
SHA-256: b65d13d10448dbd79fe389c9940b765a37560d3f4a225b2817dcd131ea939921
font_01_sfnt_off0000ecfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECFB 10412 bytes
SHA-256: c706c00095e8f3ef9cc7c1b7bc3af77c804938f7e2f08be652248bb54e092b3c

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