Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e758f6862040c27…

MALICIOUS

PDF

72.8 KB Created: 2021-02-10 07:33:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: d028d1f493e8ab2b83ed9c9822a5b23a SHA-1: 6fe724b585b0b8b8004d3c4717c1600a1bdb43e4 SHA-256: 9e758f6862040c2746b3e2ef9fb6ec3289320a55b7443cfbc78209baf13a3e6f
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL disguised as a user manual. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The presence of external URIs and the overall structure suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/123?utm_term=3cx+web+client+user+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4478414/normal_600a571fe7f46.pdfIn PDF document text
    • http://varistop.site/livro_o_ultimo_exorcistajw7mz.pdfIn PDF document text
    • http://testertumentum.space/archeage_unchained_leveling_guide_ancestralguwap.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426267/normal_5ffdcb79c9aa3.pdfIn PDF document text
    • http://mini-cam1.club/avg_vpn_crack_apkbprwb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452861/normal_5fdd3a5b3a141.pdfIn PDF document text
    • http://fb-pageunderreview.com/pc_games_hd_wallpapers_for_androida7sd3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456663/normal_5fde52705792c.pdfIn PDF document text
    • http://beach-fruit.fun/60693773593ydfk4.pdfIn PDF document text
    • http://jopkapopka.online/new_bhojpuri_video_2019_3gp0znpg.pdfIn PDF document text
    • http://llloooodddd.space/libros_de_amor_propio_mujeresxhfto.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425506/normal_5ff034002f918.pdfIn PDF document text
    • http://ledimpress.biz/spider_man_movies_20197fld2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rumavajusugeg.rf.gd/atinga_nigerian_movie_free.pdfIn PDF document text
    • http://mubadel.epizy.com/17456845611.pdfIn PDF document text
    • http://gofosuxubajo.epizy.com/picture_logo_quiz_answers_level_29.pdfIn PDF document text
    • https://s3.amazonaws.com/safago/gukobexizawolijimorelive.pdfIn PDF document text
    • http://jetubomubiko.epizy.com/98940458532.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_off0000dfd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFD1 5312 bytes
SHA-256: 97a746b8e7e29c3e6ae9f34cf6161492edb34f9f7b741160ab03c8c63d94ea70
font_01_sfnt_off0000f1d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1D9 10684 bytes
SHA-256: 069e6608a8b1e31c0c3a15129e9b91188fbbcda13224f0c94b21fd1b9ced32ac

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