Malicious PDF — malware analysis report

Static analysis result for SHA-256 e78bf7db67b98339…

MALICIOUS

PDF

120.7 KB Created: 2021-01-20 04:41:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 7ee4a119aaadea78b7910bfc0b422d57 SHA-1: 57eed9ccb7d6d9ca7176156c2b2c2dc536cf9022 SHA-256: e78bf7db67b983391f7c78923d23da53707123028ada8883fc3e5dd7c93d336d
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with a high risk score. It contains an embedded URI pointing to 'https://bologen.ru/wb?keyword=knife%20thrower%20circus', which is likely the primary malicious destination. Although no scripts were explicitly extracted, the PDF structure and the presence of embedded URIs suggest an attempt to redirect the user to a potentially harmful website, consistent with phishing or malware delivery tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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/wb?keyword=knife%20thrower%20circus PDF link annotation
    • https://cdn.sqhk.co/tunuviju/tY8heif/my_touch_smart_timer_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/gibuzini/5j8whhn/vujigonumokanosonebo.pdfIn PDF document text
    • https://cdn.sqhk.co/murajefovel/KijWohe/vevotanejebijo.pdfIn PDF document text
    • https://cdn.sqhk.co/tosijoxopum/GgdqgcA/classing_meaning_english.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380395/normal_5ffd71b909555.pdfIn PDF document text
    • https://cdn.sqhk.co/guledijuxi/j7i4ngg/wosoxujozatifumojax.pdfIn PDF document text
    • https://site-1176155.mozfiles.com/files/1176155/vuzaxagubuvuzoge.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382953/normal_5ffaf08d81810.pdfIn PDF document text
    • https://site-1168050.mozfiles.com/files/1168050/dragon_ball_battle_of_gods_vs_super.pdfIn PDF document text
    • https://cdn.sqhk.co/xavipinav/hgkhdKQ/funny_animation_movies_full_movies_english.pdfIn PDF document text
    • https://site-1254882.mozfiles.com/files/1254882/power_bi_template.pdfIn PDF document text
    • https://cdn.sqhk.co/wugunifikezu/jhjj0pT/samurai_2k_aerosol_limited_annual_report_2018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485946/normal_5fa7c865d936e.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/wajibile/revenue_forecasting_template_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/zebarufuridorur/99846941208.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/radarekubopuguw.pdfIn PDF document text
    • https://s3.amazonaws.com/takebemanijewok/inuyasha_season_3_episode_1_english_dubbed.pdfIn PDF document text
    • https://s3.amazonaws.com/xapota/auditing_and_assurance_services_7th_edition_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/93426610024.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/42702939641.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_off00019eb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19EB8 4788 bytes
SHA-256: a367ddf81b1e6a8d991ac58df1ad927f756507df96e96978073c100e139be9e5
font_01_sfnt_off0001af1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AF1F 11396 bytes
SHA-256: 57608fce8ba265c5536ed5a8234110346602cad3a9e4be9d915a1957427a59a0

Open this report in the interactive analyzer, or submit your own file for analysis.