Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd5ce096efb1b2fc…

MALICIOUS

PDF

66.2 KB Created: 2021-02-16 08:41:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 88f2f3548f9c7904698914052dff720f SHA-1: b0159f9f19963f7821594e9d99c9f9dd168489ca SHA-256: dd5ce096efb1b2fcc9e30fbffc1f65e317a43b43463cc8bd64bce31b71d194a0
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as Pdf.Phishing.Trojan. The embedded URL `https://leonvi.ru/123?utm_term=graco+duoglider+swing+video` suggests a lure related to a baby product, likely to trick the user into interacting with the malicious content. While no scripts were explicitly extracted, the presence of PDF-specific heuristics and the ML classifier output strongly indicate malicious intent, possibly involving embedded JavaScript for exploitation.

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://leonvi.ru/123?utm_term=graco+duoglider+swing+video PDF link annotation
    • http://zinuginevero.22web.org/wesijunogudotobeg.pdfIn PDF document text
    • https://cdn.sqhk.co/lopumilekana/hijdges/zombie_assassin_game_download_softonic.pdfIn PDF document text
    • http://lewodozena.22web.org/wufutofevasexuwabaguk.pdfIn PDF document text
    • http://mx50off.info/ecdl_excel_diagnostic_test_answers2d3uy.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/gapivegek/keminaluboxete.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/geguzunimagexarufiwoja.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/2703590995.pdfIn PDF document text
    • http://ribebipewafiwas.epizy.com/kaponalapuvojagogum.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/50785737169.pdfIn PDF document text
    • https://s3.amazonaws.com/zedudo/7044879061.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/coraline_movie_2009.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/publication_15_employer_s_tax_guide_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/gaselaregazadivapusimopa.pdfIn PDF document text
    • https://s3.amazonaws.com/lemefofutomapox/77262724095.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/rulizijiwupoporavesube.pdfIn PDF document text
    • https://s3.amazonaws.com/mekonulegipero/zosijibewosof.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_off0000c711.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC711 5288 bytes
SHA-256: 20abccf3687b913e750725b49657b56edf1295374ec83ea885efc8c8fd4f1905
font_01_sfnt_off0000d937.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD937 10316 bytes
SHA-256: 3345cd24f70ac01b90a712d17db112872d57d1cd88bd7360d1961dbe8fe1466f

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