Malicious PDF — malware analysis report

Static analysis result for SHA-256 6079311818eee5fd…

MALICIOUS

PDF

82.1 KB Created: 2021-02-24 21:11:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cdc97c7d77fd2fbfab3b192cd6e2eefe SHA-1: 51852d8431ad6e53a06a5b3c5681b35a7ce62d58 SHA-256: 6079311818eee5fd98ade9c503f754c624f96ce05095bd1ef5f651c805a91d5e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that points to a suspicious domain, likely intended to host a phishing page or malware. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest a phishing or malware distribution attempt.

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/wix?keyword=basketball+study+guide+worksheet+answers
    • http://jepatugikanoxuv.iblogger.org/33167664674.pdf
    • https://cdn.sqhk.co/tabuguran/NZOgiB9/tetris_effect_metamorphosis_dynamic_theme.pdf
    • https://cdn.sqhk.co/jotepomi/iheiiid/chop_chop_ninja_season_2.pdf
    • https://cdn-cms.f-static.net/uploads/4366947/normal_5fd77a05c0d9f.pdf
    • http://fefiwizam.sportsontheweb.net/escuelas_contemporaneas_de_la_psicologia.pdf
    • http://dixuvexawob.22web.org/33058691684.pdf
    • https://cdn.sqhk.co/mabuviko/cQX03up/barbie_dreamhouse_adventures_characters_in_real_life.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://gefaraw.rf.gd/firetrap_mens_size_guide.pdf
    • https://s3.amazonaws.com/gogonof/sewalemoj.pdf
    • http://bomemab.epizy.com/fillable_adventurers_league_character_sheet.pdf
    • http://lorenivi.rf.gd/fawanufefenubo.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000104cc.bin
1ddaa4a4f7e3f3b226aab366a34424e58a97ee6bcb4cdb0442c7f6472b49925e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x104CC 5532 bytes
font_01_sfnt_off000117b6.bin
27aad47615541708f49c19354fa3d6d870ba9dee41c61a376a6afb1b92eb7566		 pdf-font-stream PDF embedded font (sfnt) at offset 0x117B6 10528 bytes

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