Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecea05d88b9b2182…

MALICIOUS

PDF

94.6 KB Created: 2021-02-11 10:52:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 6617d1ef6661fe80875c38c5729a2ada SHA-1: 7db32c0e633aca9436a5512f64f58e802505bef0 SHA-256: ecea05d88b9b2182f0a92957f3c365e8288ac0bdcfca31657d8d4a09b678f0ad
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous embedded URLs, with the primary one being 'https://maypoin.ru/wb?keyword=angry%20picture%20%20video', likely intended to lead the user to a phishing or malware distribution site. The presence of embedded URLs and the overall detection profile suggest a phishing or credential harvesting attempt.

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
  • 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://maypoin.ru/wb?keyword=angry%20picture%20%20video PDF link annotation
    • http://bemelegevew.22web.org/gakubuxojejar.pdfIn PDF document text
    • https://cdn.sqhk.co/ripalufix/1K1yia2/unicorn_color_by_number_game_free_online.pdfIn PDF document text
    • https://cdn.sqhk.co/komajekolino/k1hfjeg/wexobatuludomisekazu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459180/normal_6003bc807ac96.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458837/normal_6006ceaf9886a.pdfIn PDF document text
    • http://zolomakowifop.iblogger.org/line_graph_worksheets_for_grade_4.pdfIn PDF document text
    • https://cdn.sqhk.co/nupasoxure/gf6sWu9/fist_of_the_north_star_live_action_trailer.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366949/normal_5fe49e055ca9b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380530/normal_601a66ed71b3d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495550/normal_5fee2f387991e.pdfIn PDF document text
    • https://cdn.sqhk.co/vuzefoveniri/Dmie1pW/spider_solitaire_app_without_ads.pdfIn PDF document text
    • https://cdn.sqhk.co/jasowipe/gLwy5if/76067380676.pdfIn PDF document text
    • https://cdn.sqhk.co/gopepilexafi/iigdt5k/wexejug.pdfIn PDF document text
    • https://cdn.sqhk.co/gozafavapawu/ihjy2QY/55463938052.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/wixanarer/content_strategy_template.pdfIn PDF document text
    • http://guxozuzemonixe.epizy.com/paxevezevejofos.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000129ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129AD 4972 bytes
SHA-256: f8eb50c9bb39655186d20132268844aeb21999b6c0295f941949c13c9058a1d3
font_01_sfnt_off00013ab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13AB7 1948 bytes
SHA-256: 6c77cd5f91583522f0ea1e110bbdad74eeebf3104e39de007f782d7e5e441033
font_02_sfnt_off00014406.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14406 12036 bytes
SHA-256: 66b02079d6497855e3d19874cd0fe9167a9d2f3451f4992d305e3a9441b4a52e

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