Malicious PDF — malware analysis report

Static analysis result for SHA-256 b187ddad423b0835…

MALICIOUS

PDF

79.8 KB Created: 2021-02-26 18:49:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 1b9f923a353639a49fe8d39bceca8689 SHA-1: 5ca1f71730644b591a47b174fc5b52178ab57ffc SHA-256: b187ddad423b08356ffdca7eedf3736322631e4cacb6b2e8cc447949c0425fc8
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a phishing site, disguised as a recipe. ClamAV detection and ML classification strongly indicate malicious intent. The PDF structure and embedded URI suggest a phishing lure, likely intended to trick users into visiting a malicious site for credential harvesting or further malware delivery.

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://seumenha.ru/strik?utm_term=how+to+substitute+simple+syrup+for+sugar PDF link annotation
    • http://gakagebir.mypressonline.com/im_ok_youre_ok_summary.pdfIn PDF document text
    • https://cdn.sqhk.co/lididiregi/Iyl5hiE/defender_hd5_vs_ranger_500.pdfIn PDF document text
    • https://cdn.sqhk.co/sixepatexup/ihxchh6/park_management_degree_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488133/normal_5fcc60c63059f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379722/normal_5fe8d80b287e3.pdfIn PDF document text
    • https://cdn.sqhk.co/lusimalifa/cRkuyjd/food_giant_murray_ky_phone_number.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389805/normal_600fcba4851aa.pdfIn PDF document text
    • http://lelekelosutov.getenjoyment.net/where_do_chicks_come_from_book.pdfIn PDF document text
    • https://cdn.sqhk.co/lanumakefu/72geXhe/translate_romanian_to_english_voice.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427313/normal_6015ae284dd6b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489409/normal_5fe156ac97470.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zowofiz.myartsonline.com/tonumimijonimorejazetejan.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/tugujabogokajuwalare.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/alfa_romeo_brera_3._2_v6_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/faxaxos/nanugokuxobafavimaja.pdfIn PDF document text
    • http://liraperuwuw.atwebpages.com/35326066399.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/lagu_andien_puisi_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/bharti_airtel_annual_report_2016-_17.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_off0000fb4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB4F 5516 bytes
SHA-256: 46301dc8d3a5a043e9ebc4cbd33434b81c4896e5af3086eea2bf61e67d04cc5f
font_01_sfnt_off00010e0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E0E 10496 bytes
SHA-256: 764144443c8c66456969e15de60af5aafef8faea47a956d883d1a83fc83ad55e

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