Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a5bb32ff9d8b012…

MALICIOUS

PDF

137.5 KB Created: 2021-03-15 14:55:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: fb80316216ca816d09c1e24a00961a7a SHA-1: 5b58d97474780dc60f55375abe7b13dcc9b221d7 SHA-256: 2a5bb32ff9d8b012a43255fd02a20ffc56e7e073a81aae5cc6c14be77cd6b8cf
156 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by multiple heuristics, including ClamAV and an ML classifier, indicating it is likely a phishing or malware distribution attempt. It contains numerous external links, with a significant number pointing to potentially malicious domains like 'dugedepap.ru' and 'wubowobipevoto.mywebcommunity.org'. The presence of embedded links and the PDF structure suggest an attempt to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • 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.
  • 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://dugedepap.ru/123?utm_term=lagu+lily+versi+rock+by+ghanz PDF link annotation
    • http://wubowobipevoto.mywebcommunity.org/zuduvujavapuzasusifuzow.pdfIn PDF document text
    • http://lijijuzopos.iblogger.org/20436567536.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/benubapopikaj/cerita_rakyat_adalah.pdfIn PDF document text
    • http://xefivaz.epizy.com/automatic_call_recorder_app_9apps.pdfIn PDF document text
    • https://7a579b3f-ce96-4c66-abdc-991530493d29.filesusr.com/ugd/010c6b_02a7c041dbaf445daf0e9860e88e1a67.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/22683245176.pdfIn PDF document text
    • http://saxodanokijaj.atwebpages.com/how_do_i_fix_my_nextbook_tablet.pdfIn PDF document text
    • http://madujenorenugax.epizy.com/free_printable_pictograph_worksheets_for_grade_1.pdfIn PDF document text
    • http://xolavozezimodan.onlinewebshop.net/16055521836.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwuzerijofa/jurassic_world_evolution_dinosaur_stats_spreadsheet.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/plane_ticket_template_present.pdfIn PDF document text
    • http://ruzojonawa.epizy.com/banco_bicentenario_movil_android_descargar.pdfIn PDF document text
    • http://zogivumomu.epizy.com/drop_down_list_in_access_report.pdfIn PDF document text
    • http://tudixuzaw.onlinewebshop.net/what_a_word_for_listening_devices_in_movie_theaters.pdfIn PDF document text
    • http://birofasadonu.epizy.com/wiliseteverid.pdfIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/world_war_z_game_review_xbox_one.pdfIn PDF document text
    • https://s3.amazonaws.com/kijelopazekune/scientific_publication_citation_format.pdfIn PDF document text
    • https://49884795-3b66-401c-adaf-b59e999553af.filesusr.com/ugd/8bd6c9_3475f8f4e1a84205be002b14604a6254.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001cf87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CF87 5220 bytes
SHA-256: 2b371121b2cc6b33f0068ce4f1899899db19fdd736628f76f6e39994775b1ca0
font_01_sfnt_off0001e148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E148 12068 bytes
SHA-256: afb1f5f76c7322be88bafdc59ad65908e8ab2cd3d3ccd2300e2534fcf508abdb
font_02_sfnt_off000209f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x209F5 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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