Malicious PDF — malware analysis report

Static analysis result for SHA-256 615df8e8d80acc1a…

MALICIOUS

PDF

72.4 KB Created: 2021-03-01 06:10:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 37f98756d16a934b69edc030eb145bd9 SHA-1: c05370536b85d99313541afff282310e5b4ca353 SHA-256: 615df8e8d80acc1a8982961123a5af2f100ebc2f9d112edb92761b06ca914c92
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://zajinet.ru/wix?keyword=tera+leveling+guide+2019 PDF link annotation
    • http://nejevefivi.mypressonline.com/70341032830.pdfIn PDF document text
    • https://cdn.sqhk.co/kubepugemaki/hagcuhi/how_to_make_monster_truck_cake_pops.pdfIn PDF document text
    • http://lbaranaydin.com/xotubevebizapu23m23.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391621/normal_5ffcad813cd26.pdfIn PDF document text
    • http://lezigovedavide.getenjoyment.net/baby_goats_bouncing_on_trampoline.pdfIn PDF document text
    • http://steblin.pro/arjun_reddy_movie_kiss_scenesvthi0.pdfIn PDF document text
    • https://cdn.sqhk.co/wizokawoxo/fsheNGO/24410340728.pdfIn PDF document text
    • https://cdn.sqhk.co/kigoxeni/jgv2get/kuzuruvaduratax.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419003/normal_5fde852a723d9.pdfIn PDF document text
    • http://lestyprin.online/3371484005663bsp.pdfIn PDF document text
    • https://cdn.sqhk.co/ninoporaleva/hfidZib/rally_cars_for_sale_facebook.pdfIn PDF document text
    • https://cdn.sqhk.co/giwitosak/ieiihpw/73017219805.pdfIn PDF document text
    • http://mixutadumekaje.mypressonline.com/charlas_de_seguridad_de_5_minutos_sobre_el_covid_19.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465719/normal_5fccfb8da2633.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385847/normal_601cec91f1893.pdfIn PDF document text
    • https://cdn.sqhk.co/tetaxekumipi/dihiaHC/wetikibukilefobe.pdfIn PDF document text
    • https://cdn.sqhk.co/suwapipejob/YjjuWie/frases_tumblr_en_ingles_sad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391909/normal_601a403b9ab02.pdfIn PDF document text
    • https://cdn.sqhk.co/folikulezig/bTgjjhI/32624999675.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://saluwagasa.onlinewebshop.net/how_do_i_get_rid_of_ground_bees.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_off0000e00c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE00C 5308 bytes
SHA-256: dbe8fb408b7b7fc94592ea5327c403d01768b1a025620833959acf8b8240662c
font_01_sfnt_off0000f230.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF230 10100 bytes
SHA-256: 46a94bb6b8b3bbb3e30cc952e408480672fc275aff4bafeec786b53dc9d0866c