Malicious PDF — malware analysis report

Static analysis result for SHA-256 85fe39f718893f92…

MALICIOUS

PDF

73.7 KB Created: 2021-02-12 13:17:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 42c48077e7f6ab631e941293f66aefe0 SHA-1: 2401b8c1f1b44171d87f0375ad9a0b50fb86066e SHA-256: 85fe39f718893f929d3c4b03274849e8302fc6d7f5e7a5700631d0861d4e0cb3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://leonvi.ru/wb?keyword=ajay%20devgan%20movie%20baadshaho PDF link annotation
    • https://puwawegolawibot.weebly.com/uploads/1/3/2/6/132682739/2024694.pdfIn PDF document text
    • https://xitozenajoxoge.weebly.com/uploads/1/3/2/6/132681812/25a2c0791f.pdfIn PDF document text
    • https://cdn.sqhk.co/wanadujogo/czidjhJ/junevakuzodiwuledu.pdfIn PDF document text
    • https://cdn.sqhk.co/mezutowede/bFPiagc/smart_wifi_switch_3_way.pdfIn PDF document text
    • https://kovirelumen.weebly.com/uploads/1/3/0/8/130873776/6235234.pdfIn PDF document text
    • http://dobewobezusisof.iblogger.org/kendo_grid_column_template_date_format.pdfIn PDF document text
    • https://cdn.sqhk.co/jokusagin/Ehcge0e/horse_jumping_simulator_3d.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/tedowafomaru/gotilegorit.pdfIn PDF document text
    • http://popuzavefigud.epizy.com/blur_imageview_android_github.pdfIn PDF document text
    • http://xikimafelote.epizy.com/mainstream_engineering_epa_608_study_guide.pdfIn PDF document text
    • http://jotozig.rf.gd/ybn_nahmir_all_songs.pdfIn PDF document text
    • http://bofiragomux.rf.gd/easy_electric_guitar_sheet_music.pdfIn PDF document text
    • http://gujupikisikali.epizy.com/avg_antivirus_free_windows_xp.pdfIn PDF document text
    • https://s3.amazonaws.com/zakunafu/likixuginisefipoz.pdfIn PDF document text
    • http://gijabakupukuj.rf.gd/deadly_betrayal_movie_free.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_off0000e0b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B4 5480 bytes
SHA-256: 526db00a0c95f22b2a71dba5e19a089ab365721ab3f30f99bfdd61050ea68fa9
font_01_sfnt_off0000f344.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF344 10992 bytes
SHA-256: e1c43a305bc180cb89443f7ccc69b833800c0190629a7bc3140d027b9f9a0725