Malicious PDF — malware analysis report

Static analysis result for SHA-256 09413a20081e4cee…

MALICIOUS

PDF

70.7 KB Created: 2021-03-02 20:58:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: b291c7cee2c87e916286e99002507156 SHA-1: ac7359d009bd66f1a5146c976f3539830bf2dcfc SHA-256: 09413a20081e4cee153a07d7dcbb749252e8f22271793345afa3f5f9c35cd565
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directly advertises a "hack" for a game, strongly suggesting a phishing or malware lure. The ML classifier and ClamAV detection further confirm its malicious nature. While no scripts were explicitly extracted, the presence of an external URI and the overall classification indicate the document's intent is 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://bologen.ru/wix?keyword=contest+of+champions+hack+no+survey PDF link annotation
    • http://pet-guru.shop/11857549595xzbjd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458148/normal_5fdd86c564072.pdfIn PDF document text
    • https://cdn.sqhk.co/rezejigobip/fFjfyha/79693902288.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367680/normal_60133e4103dae.pdfIn PDF document text
    • http://hermidkovo.info/sisibojowabupezo0h52d.pdfIn PDF document text
    • http://dezunanerab.iblogger.org/free_printable_5th_grade_science_vocabulary_worksheets.pdfIn PDF document text
    • http://meriline.store/39637289458hlrll.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391319/normal_5fddf81e97c98.pdfIn PDF document text
    • http://mir23.xyz/vebopodebibaff1y9y.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413473/normal_600db4b78f746.pdfIn PDF document text
    • http://cocobuka3.xyz/hockey_goal_horns_2019nz7x0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zifopodisinuri.rf.gd/badlapur_movie_free_utorrent.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/46566849144.pdfIn PDF document text
    • http://bigepuvuxo.epizy.com/bawegokaronuwuxuxat.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/epi-_derm_silicone_gel_sheeting.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/sujazutomebegoromotes.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/how_to_maximize_personal_injury_claims.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_off0000d85d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD85D 5356 bytes
SHA-256: 71839f1a6420637c1f8994564d0ff4791b97da25cb8998d107c79ac5072fbd48
font_01_sfnt_off0000ea76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA76 10360 bytes
SHA-256: a0d6804565717ae612f5f95bee6884f408c7a729ed6ae691c9e9007fc6091831

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