Malicious PDF — malware analysis report

Static analysis result for SHA-256 964cb2ab85c1781c…

MALICIOUS

PDF

75.0 KB Created: 2021-02-28 18:30:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a6e16a56df1d0b01ef90621252da2fca SHA-1: 9bd76dc988a2887d5aa3674638b0422f3d9e2d16 SHA-256: 964cb2ab85c1781c1e3338d0b91ae45f7008fcdeb283eb4b85eefcdcb41d6e0b
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://fokemale.ru/award?keyword=big+bang+theory+season+12+finale+full+episode PDF link annotation
    • http://numberoone.xyz/vusaxonalitajikazemepoth0kn.pdfIn PDF document text
    • https://cdn.sqhk.co/kerametunal/fDohahi/alabama_road_trip_map_planner.pdfIn PDF document text
    • http://matrixbicycles.com/gosorixuxefegroaaj.pdfIn PDF document text
    • https://cdn.sqhk.co/lutadamafe/hhewPgd/monstera_plant_grow_in_water.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/fqqvCZs/sculpture_definition_tate.pdfIn PDF document text
    • http://feldhaus-klinker-plitka.ru/www_aventuras_cancan_com_registrarsezlm10.pdfIn PDF document text
    • http://xuxetosufuzo.getenjoyment.net/sears_washer_and_dryer_combo_sale.pdfIn PDF document text
    • http://probnik1313.tech/796059136488ntf6.pdfIn PDF document text
    • https://cdn.sqhk.co/sovokeduseb/WSMxPOq/heart_3d_printer_thingiverse.pdfIn PDF document text
    • https://cdn.sqhk.co/zejejofe/ibibgic/59117105702.pdfIn PDF document text
    • https://cdn.sqhk.co/legusovej/jcb4Eji/finger_gun_pose.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375073/normal_5fdc43aaadafc.pdfIn PDF document text
    • https://cdn.sqhk.co/nawafoxobok/BjdhdbW/20331191752.pdfIn PDF document text
    • https://cdn.sqhk.co/dinigivo/pAjgsf7/infinite_loop_youtube.pdfIn PDF document text
    • http://sevagawos.getenjoyment.net/sanoja.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_off0000e75d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE75D 5776 bytes
SHA-256: fe693d1317f97c18b0d26ae8dad91447a23522e1d1868ba01980c813d9571979
font_01_sfnt_off0000fb15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB15 10396 bytes
SHA-256: b49f2e6081b3838faa7232eeeacf11016abed1a26cea64492401c92ba67f2ee6