Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ebdae4b5269afb5…

MALICIOUS

PDF

73.4 KB Created: 2021-01-30 08:48:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b02340dd1605f8eacce770efdf0519b6 SHA-1: aa43751a22872b82893202415da9cffdf799ca13 SHA-256: 8ebdae4b5269afb5057d22e3a57ec703d7df329e371eb62a40dee8cddb887c65
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/wb?keyword=annoying%20orange%20video%20game%20characters PDF link annotation
    • https://kepijifawobi.weebly.com/uploads/1/3/5/3/135388201/zodorupisewagavi.pdfIn PDF document text
    • http://eurofamily.pro/wardog._shooter_games_unblockedzah87.pdfIn PDF document text
    • https://cdn.sqhk.co/fomezawelud/c4ien4a/spices_hut_restaurant.pdfIn PDF document text
    • https://cdn.sqhk.co/motakolilo/18tiIR8/basinibemavademodozunu.pdfIn PDF document text
    • https://rufuroborotefin.weebly.com/uploads/1/3/1/8/131856068/f4c95dfb766.pdfIn PDF document text
    • https://cdn.sqhk.co/duwafutozi/Hhhgjav/wobotabo.pdfIn PDF document text
    • http://bettyloustintruckbbq.com/ejercicios_de_lexemas_y_morfemas_resueltos_1o_esoxud8z.pdfIn PDF document text
    • https://cdn.sqhk.co/tijovomiv/Ahjhdhj/1099009014.pdfIn PDF document text
    • http://tb-films.ru/mikecrack_diamantito_1_2_3d861j.pdfIn PDF document text
    • https://cdn.sqhk.co/junukexad/bghGifn/58314934816.pdfIn PDF document text
    • http://vizit.store/zatiraximawofixazoditrg6qn.pdfIn PDF document text
    • https://cdn.sqhk.co/natefisaka/yjbhegc/idle_submarine_crafting_journeys.pdfIn PDF document text
    • https://cdn.sqhk.co/gudopokobipa/hiZfpge/jewels_star_2_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/wixexozesila/Ujhibii/aces_of_the_luftwaffe_bosses.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/dozuga/amplitude_modulation_using_simulink.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_off0000e270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE270 5472 bytes
SHA-256: 247276e1dca4a398336efc8930abaee9bbb0784c89b59269c4a804d022e6452e
font_01_sfnt_off0000f4f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F4 10536 bytes
SHA-256: 43842782cd3584bb24b9113a520fc7ce3c6fd0471220924c1f57f692af0c216a