Malicious PDF — malware analysis report

Static analysis result for SHA-256 39b8c978e5216c84…

MALICIOUS

PDF

71.7 KB Created: 2021-02-12 12:01:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 366cc8b00e83f66ada0df1084da8e8df SHA-1: e11737b4cec26563a637a5c936879c19ca60ed01 SHA-256: 39b8c978e5216c84573ed26e4a2835e255fdf657785b8b6bce9ccead8c82a2b7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/aws?utm_term=organel+sel+hewan+dan+fungsinya+pdf PDF link annotation
    • https://cdn.sqhk.co/nolovojawek/qdrhbgi/badland_winch_parts.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402963/normal_6014d7c4c8003.pdfIn PDF document text
    • https://cdn.sqhk.co/zidexamuwela/javjcjh/talking_cat_and_dog_movie.pdfIn PDF document text
    • http://francobusiness.com/60106996040ga2r4.pdfIn PDF document text
    • http://d-youtube.com/tasty_planet_forever_pc_download_freewezem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482854/normal_600b33cb2b3f9.pdfIn PDF document text
    • https://cdn.sqhk.co/tabuguran/UgijThb/pinata_hunter_2_cool_math_games.pdfIn PDF document text
    • https://cdn.sqhk.co/belesobikezi/pNSheXV/romujumen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490380/normal_60244b9eda9a8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365563/normal_5fe1ee25ae94a.pdfIn PDF document text
    • http://netlysy.online/wwe_raw_results_today_bleacher_reportai4pd.pdfIn PDF document text
    • http://raifaisentgo.online/duty_manager_resume_templateyi7f2.pdfIn PDF document text
    • http://indital.fun/84583736461899ip.pdfIn PDF document text
    • http://rabota-plus.club/craigslist_nj_car_parts_for_sale_by_ownerxgcdh.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/fosawef/mesafureretaj.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_off0000dbd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBD9 5524 bytes
SHA-256: 82d5da6500bec3f2656ac8193e29f9905f07ff44d0eb22d04734d3d4c4d104c5
font_01_sfnt_off0000eeb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEB2 10332 bytes
SHA-256: fce10046c51b8fc97231d95cde29d86d48ff6d405aedc412a5b1b15b811e19dc