Malicious PDF — malware analysis report

Static analysis result for SHA-256 38eec730ae865535…

MALICIOUS

PDF

76.1 KB Created: 2021-02-19 11:47:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: f581b059972645d516431f1ff3ed8df7 SHA-1: 53c262bec817f4b277b7f0751f8a0cca8bc145f8 SHA-256: 38eec730ae86553569807eed1f3b94c8f996521686d131a86d0a577293a0a3ba
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, likely for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to direct the user to a malicious site, potentially as part of a phishing campaign.

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/strik?utm_term=2012+toyota+highlander+hybrid+mpg PDF link annotation
    • https://cdn.sqhk.co/jimumakevaji/ghheRHe/pandemic_unemployment_assistance_maryland_extension.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379837/normal_60272474f3944.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427528/normal_6009fdd1b2376.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467285/normal_5ffff370613d6.pdfIn PDF document text
    • https://cdn.sqhk.co/gidufulelav/HifjiRt/tiny_armies_apple_watch_gameplay.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisidumes/gggghiA/amazon_echo_show_10_stand.pdfIn PDF document text
    • https://cdn.sqhk.co/kovezozeseg/geMgiQY/phage_therapy_cost.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kowefejarozop.epizy.com/tadapololasakukonotufole.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/dikoromomejebi.pdfIn PDF document text
    • https://s3.amazonaws.com/timituvupame/spring_bingo_game_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/formato_certificado_de_origen_mexico_honduras.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/baseline_risk_assessment_template.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/57559639607.pdfIn PDF document text
    • http://tinijev.epizy.com/xatasopofiwuni.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/kapuronazefinobalemulox.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/11323652467.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/40324288611.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/current_gst_rates_in_india.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_off0000ea6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA6E 5668 bytes
SHA-256: 36d80a7df4f182b3e8bd16f727846af06cde2da05da0835dc534a811b1444742
font_01_sfnt_off0000fd8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD8F 11372 bytes
SHA-256: 0983dbc1dacc8fd614b915e73e7035e857e08cad3e55d33c0d87173148dbfe21

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