Malicious PDF — malware analysis report

Static analysis result for SHA-256 67213e46776dd64b…

MALICIOUS

PDF

78.2 KB Created: 2021-03-12 17:55:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4dcf3655806f65f73dceeeba152eb9a4 SHA-1: af6c01078321ab695abc55654a7527d15c1516d7 SHA-256: 67213e46776dd64b4c39a735fda6dcef02acc4e2e21896694c197c5eb2f503ab
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://jacksth.ru/award?keyword=landforms+created+by+wind+erosion+and+deposition+pdf PDF link annotation
    • http://lazerepil.site/27959621769gcml6.pdfIn PDF document text
    • http://netusikofigo.22web.org/picadora_de_verduras_manual_cuadritos.pdfIn PDF document text
    • https://cdn.sqhk.co/tejilunuf/RgiGgds/doom_patrol_cast_rita.pdfIn PDF document text
    • http://nuveclovet.xyz/sketchup_tutorial_part_2yl55f.pdfIn PDF document text
    • https://cdn.sqhk.co/lewivapawo/6Cjgiij/open_house_signs_amazon.pdfIn PDF document text
    • https://cdn.sqhk.co/bosamame/jiejf7z/jivobiromazi.pdfIn PDF document text
    • https://cdn.sqhk.co/zoburawava/eLha7ts/nujinujakevijimamito.pdfIn PDF document text
    • https://cdn.sqhk.co/kafodarifab/hhdVgct/13648397347.pdfIn PDF document text
    • http://xevidome.iblogger.org/when_does_tu_have_an_accent.pdfIn PDF document text
    • http://copyrightmediahelp.com/85818247540wyhwn.pdfIn PDF document text
    • http://kinoxca.xyz/846710234654v7tl.pdfIn PDF document text
    • http://streamsweets.com/fenazopiridina_acido_nalidixico_plm0spn8.pdfIn PDF document text
    • http://lopekojupapo.22web.org/bepezoxegeparu.pdfIn PDF document text
    • http://joy-todays.online/654769257004yuov.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/05cb9b7d-62c7-4da7-8182-c151f4c97c37/concepto_de_quimica_organica_segun_autores.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16b35ea2-e09f-4c1d-a9e7-54c93813ea63/how_to_weld_beginners_guide.pdfIn PDF document text
    • http://faganelatoke.epizy.com/samsung_vrt_plus_error_code_ub.pdfIn PDF document text
    • http://rowavironipomiz.epizy.com/86410472143.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_off0000f592.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF592 5544 bytes
SHA-256: 8e9d9a67fca7828f70a888026457977193b605b890870bf1852d4e99346db2fe
font_01_sfnt_off00010872.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10872 10260 bytes
SHA-256: 8b22fb56087b845433d0bace071c92526016db1bcf5abfa70a1e0ed76a325a99