Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebed4ddc03ee8252…

MALICIOUS

PDF

92.3 KB Created: 2020-12-24 02:53:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 96eff9d1281ac49784f6181dd0494157 SHA-1: 9347f7e506c2b7df720a7c2be1d6c5da6258e297 SHA-256: ebed4ddc03ee82527c711e9663e60ca4c4f4c665f54334baff7017b09513a31b
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document that has been flagged by multiple detection engines, including ClamAV, as a phishing trojan. It contains an embedded URI pointing to 'traffine.ru', which is likely part of a phishing or malicious redirection scheme. Although no scripts were explicitly extracted, the PDF structure and the ML classifier output strongly suggest malicious intent, likely involving social engineering to trick users into clicking malicious links.

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://traffine.ru/aws?utm_term=cantigas+de+santa+maria+sheet+music PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4374859/normal_5fddd2a227450.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372105/normal_5f8d8bf42a68c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424007/normal_5f9f81f652f90.pdfIn PDF document text
    • https://cdn.sqhk.co/kibizatududo/fyMigjZ/mr._slice_app.pdfIn PDF document text
    • https://cdn.sqhk.co/linerutinew/igG1Mgc/45495899264.pdfIn PDF document text
    • https://cdn.sqhk.co/tiruxugajo/exjhjgJ/risopumegemumekireraj.pdfIn PDF document text
    • https://cdn.sqhk.co/kuruwoke/Dlii1jc/pixel_shooter_3d_fps_action_games_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/nanuvoxeva/7KhbKoW/wumijoroku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366389/normal_5f8d543fc7e7a.pdfIn PDF document text
    • https://cdn.sqhk.co/dusimefosix/fieiaQ5/dugolovepagosirekagewim.pdfIn PDF document text
    • https://cdn.sqhk.co/kapudome/hDhejgG/maze_runner_death_cure_cast_interview.pdfIn PDF document text
    • https://cdn.sqhk.co/nebuneduzib/e0hiiiI/35316350387.pdfIn PDF document text
    • https://cdn.sqhk.co/vogoxaginoje/ticcqhe/wifi_drivers_for_windows_10_hp.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/tadevewuju/376321576.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000115db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115DB 5224 bytes
SHA-256: 941cad7d88af61dd626846eb15f849cdc50f0692b20e456febb9e6ec2c86f848
font_01_sfnt_off00012775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12775 11720 bytes
SHA-256: 52d861b8c51ccbb78039042041fdb295f0927d72c835c991b536e6d0e7451ef6
font_02_sfnt_off00014ebc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14EBC 16200 bytes
SHA-256: 9527d77a8ddbff7143f4b9d9ffa6a9c0a17c14fbd864be9d9139927b2451880e

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