Malicious PDF — malware analysis report

Static analysis result for SHA-256 e41c33e66ce3b28e…

MALICIOUS

PDF

69.1 KB Created: 2020-11-23 17:45:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ba6dcdc6e178784da48ed0e6ac01413 SHA-1: 29aa2e0584c0772cb19ec09273c7079fa9c31cae SHA-256: e41c33e66ce3b28ec49a385b5627211fec5d6e240a95589d3e250e93e2303d99
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a site offering a 'dungeon hunter 5 hack tool'. This URL is presented as a lure, likely to trick users into downloading malicious software. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing or trojan PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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://trafffi.ru/123?utm_term=dungeon+hunter+5+hack+tool
    • https://cdn-cms.f-static.net/uploads/4370740/normal_5f8a09818cada.pdf
    • https://cdn-cms.f-static.net/uploads/4366036/normal_5f88005961deb.pdf
    • https://xafuraworeduvux.weebly.com/uploads/1/3/4/7/134752052/5743122.pdf
    • https://cdn-cms.f-static.net/uploads/4420907/normal_5fb72cc8c5610.pdf
    • https://kogatakuzomaw.weebly.com/uploads/1/3/4/4/134444425/delakuzozesi_muladurilavori_zevovanurora.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ccdafe5c-5809-4a16-837f-bfb69ca8a2bb/super_mario_bros_2_apk_android.pdf
    • https://s3.amazonaws.com/kimoweworape/directions_to_scottsdale_mall.pdf
    • https://s3.amazonaws.com/pubopelej/newominiduziz.pdf
    • https://s3.amazonaws.com/fevobelijogal/pigewixifi.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_off0000cf6c.bin
8279c481dbf4a136d43072ac5a0eb2f48bbe034aee2bdd316c77983e9626887d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCF6C 5072 bytes
font_01_sfnt_off0000e0b3.bin
76a22fc46a22add2f55251065fe0646f4152ab1b14bd896ca6ad3769a2577a3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B3 11876 bytes

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