Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ef5180dd3fb2153…

MALICIOUS

PDF

71.2 KB Created: 2021-02-19 08:30:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: dc2d0a0f992ca79446e80af425637415 SHA-1: 21a25ae7ea61ec4efe2c9f31c84a2d47e0a6108f SHA-256: 6ef5180dd3fb2153db0a82ab1e0508738b2f03f79b554eb708904b30b2c4bedf
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely a phishing or malware distribution lure. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though heavily obfuscated, contains keywords related to game hacks, reinforcing the phishing lure.

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/wix?keyword=legacy+of+discord+furious+wings+hack+root PDF link annotation
    • https://cdn.sqhk.co/tororukiwuri/iETeYhh/shipwreck_cafe_michigan.pdfIn PDF document text
    • https://cdn.sqhk.co/tazurusubiz/Gifibgj/murufamutotezunasi.pdfIn PDF document text
    • http://wunazaro.22web.org/pet_animals_worksheet_for_grade_2.pdfIn PDF document text
    • http://jujakivupas.iblogger.org/sesebemodure.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gabigirinekib.rf.gd/baby_girl_games.pdfIn PDF document text
    • https://s3.amazonaws.com/fusopoxipo/suwesupojawodajasizon.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/kedud.pdfIn PDF document text
    • http://fobupozomorefiw.epizy.com/paec_job_application_form_doc.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/king_size_bed_sheets_measurements.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/gejasoxapinojomufuwufasaf.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/bisizetufepekeju.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/xutiputirasef.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/16451734902.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/69739025787.pdfIn PDF document text
    • http://tuguwobafadurot.rf.gd/37119675439.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/76923498906.pdfIn PDF document text
    • http://rilifufamorupud.epizy.com/abdullah_movie_song.pdfIn PDF document text
    • http://wosumobikufiw.rf.gd/tikevinoxinunakuzunu.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_off0000d90f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD90F 5448 bytes
SHA-256: 1177b758f7f69171d88ca8f80ac125f2cc626401db795e98d3d76b4fc431e90e
font_01_sfnt_off0000ebb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBB7 10412 bytes
SHA-256: feb719aabecb475b59d1e871ac710a39305270680ceea3b6b9092521698ca908

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