Malicious PDF — malware analysis report

Static analysis result for SHA-256 05e43ab5f115c09a…

MALICIOUS

PDF

78.2 KB Created: 2021-01-31 23:22:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 86e8aba19174e05973618e58fde6ac22 SHA-1: fde4fb5601a005cf3bc3f9b74e169305392a6b52 SHA-256: 05e43ab5f115c09a4d75d4eef4352fa11c0b26b0d25a4b21ba6a2509f04ad69f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wb?keyword=online%20video%20editor%20for%20youtube%20no%20watermark PDF link annotation
    • http://avit0.pro/fire_emblem_awakening_child_guide5d597.pdfIn PDF document text
    • http://ryukzak.digital/billed_customers_for_services_performed_accounting27a1z.pdfIn PDF document text
    • https://vabakapis.weebly.com/uploads/1/3/1/4/131453405/b34772c463.pdfIn PDF document text
    • https://xuwomiber.weebly.com/uploads/1/3/0/9/130969046/3870367.pdfIn PDF document text
    • https://fubomagasikeka.weebly.com/uploads/1/3/4/4/134474343/9582274.pdfIn PDF document text
    • http://businessoutsourcing.org/86529328090l5hub.pdfIn PDF document text
    • http://kinokaiff.space/annexure_k_for_pf_transferf5rl7.pdfIn PDF document text
    • http://bufo.online/78785080386sopb8.pdfIn PDF document text
    • http://wownatural.fun/bimble_s_bucket9mdtj.pdfIn PDF document text
    • http://spain50off.info/46584359042wmlb9.pdfIn PDF document text
    • https://likunemotiro.weebly.com/uploads/1/3/5/2/135299998/wugezanofudewusakas.pdfIn PDF document text
    • https://cdn.sqhk.co/zafazegig/hcijsGu/original_donkey_kong_arcade_cabinet_for_sale.pdfIn PDF document text
    • http://pinerapidsrr.com/round_robin_tournament_template_excelaqy1a.pdfIn PDF document text
    • https://cdn.sqhk.co/baresupujar/jcgdmha/origami_heart_bookmark_easy.pdfIn PDF document text
    • https://cdn.sqhk.co/puberufibo/qVheBha/xavejasifu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000f55a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF55A 5360 bytes
SHA-256: 91c74b50b72ecd6a25fd120b8621782989e6d6ba150819f6f41a93f264416a82
font_01_sfnt_off00010799.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10799 10552 bytes
SHA-256: 677e3c0810bbd6097f111715cb81adb34427d2137f4eb950f7bac5b13b804e1f