Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9d30ade0364bc32…

MALICIOUS

PDF

69.4 KB Created: 2021-02-12 01:54:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 2768009518f57cfc259424b31e69bc90 SHA-1: fbaefa1086e734cded8fa95f432b222517612596 SHA-256: e9d30ade0364bc32d0317a90fa8bb9ffca0868138b72b888e96703704b2a2b85
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, with ClamAV identifying it as a phishing trojan. The document body contains text that appears to be a search query for 'Beethoven baby music free', and an embedded URI points to a URL that mimics search results. This suggests a phishing attempt to lure users to a malicious site. No scripts were extracted, but the PDF structure itself is likely being exploited.

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/wb?keyword=beethoven%20baby%20music%20free PDF link annotation
    • https://cdn.sqhk.co/gukisafuw/FpjcibL/34__2018.pdfIn PDF document text
    • http://garant-ritual.online/ya_no_eres_pan_y_vino_acordesv5506.pdfIn PDF document text
    • https://cdn.sqhk.co/fabozesemi/pelhbgh/the_information_center_of_the_cell.pdfIn PDF document text
    • https://gasezojilatinoj.weebly.com/uploads/1/3/1/4/131455825/6895660.pdfIn PDF document text
    • https://cdn.sqhk.co/suzeboxiwo/yieiaso/gba._emu_free_1._5._12.pdfIn PDF document text
    • https://cdn.sqhk.co/daladovum/jcjfgjk/sprinter_upfitters_near_me.pdfIn PDF document text
    • https://javesuput.weebly.com/uploads/1/3/0/8/130873829/14fcf326aab0d1d.pdfIn PDF document text
    • https://wirorovikematu.weebly.com/uploads/1/3/1/0/131071137/zojejivuvipopu.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/vipuxafol/1221479692.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/best_3d_rpg_games_for_android_offline.pdfIn PDF document text
    • https://s3.amazonaws.com/nevovumowa/91072844070.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/amrae_formation_siret.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/bhoot_song_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/takebemanijewok/faguwedukibovek.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_off0000d036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD036 5440 bytes
SHA-256: 977ba85a893279d0b9cf701422955b5bdf526a008f0f25bf3e2998ce0a89ed65
font_01_sfnt_off0000e2a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2A2 10908 bytes
SHA-256: 5496b39ed5c54b20dce72b239ec956996d21726e318748cd89209a631d05942a

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