Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3ea4ced6f8e86ce…

MALICIOUS

PDF

75.4 KB Created: 2021-02-19 09:40:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 3d00db8c7e312d84590c395f0954d09c SHA-1: 9216885312aa6db979c3a5d75beef122e5861d32 SHA-256: c3ea4ced6f8e86ce3c3d8cc66af7b6dd1b81fa1dddb9a0feb859a1aad649c826
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an external URI pointing to a suspicious domain, and multiple other unknown reputation URLs embedded within the document. The document body is heavily obfuscated, but the presence of these URLs suggests an attempt to redirect the user to a malicious site, likely for phishing or 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://druttle.ru/strik?utm_term=nationalism+in+india+by+rabindranath+tagore+pdf PDF link annotation
    • http://smartradiobf.ru/10912471983w4z7m.pdfIn PDF document text
    • http://delayikapy.xyz/autonomy_in_medical_ethicsz0syu.pdfIn PDF document text
    • http://mmmmmme.space/best_app_for_todo_list_and_notesdoymu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464996/normal_602e5f20a4795.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475571/normal_5ff75e95da539.pdfIn PDF document text
    • http://item-mask.top/mepuvepimijapigerisotojaemxn.pdfIn PDF document text
    • http://theboldpantsproject.com/70249913887kg1k.pdfIn PDF document text
    • http://futup.ru/sewergems_user_manualpr9rg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393521/normal_60286a4051589.pdfIn PDF document text
    • http://raisinshub.club/827821085141vomy.pdfIn PDF document text
    • http://bilet-pdd.site/how_to_create_a_pre_and_post_testlm77i.pdfIn PDF document text
    • http://shopyou.online/devi_bhagwat_puran_in_sanskrit_with_hindi_translationp3cb8.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/niwotipugonuvoz/anandi_gopal_movie_hd_720p.pdfIn PDF document text
    • https://s3.amazonaws.com/zowibatev/anatomy_and_physiology_textbook_for_nurses.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/excel_spreadsheet_calendar_template_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/wamatasamegu/2172046619.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_off0000e99d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE99D 5668 bytes
SHA-256: f04eb3f0a4f79b8a5e78d4c8ea7a7358d70751de880786dce533790e1df83498
font_01_sfnt_off0000fcc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC3 10620 bytes
SHA-256: 0344f3f9b2a6c8f6e6410285063565ac4eacdd4404df0ffbdcd6dc60c27e0144