Malicious PDF — malware analysis report

Static analysis result for SHA-256 5050794c229ecd70…

MALICIOUS

PDF

71.8 KB Created: 2021-02-24 10:59:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 47a15d99528b4cbc7db3d4e944d06e79 SHA-1: 9b3d1ae676a176eb8da1fb4ae06731aa46d3fbed SHA-256: 5050794c229ecd70a921ad86d77468a3a119c2e176eaa65ae26840b0e5bbfd6b
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://jottigo.ru/123?utm_term=que+es+composicion+corporal+educacion+fisica PDF link annotation
    • https://cdn.sqhk.co/dawajimet/giwigje/bamitol_gel_reforzado.pdfIn PDF document text
    • http://soxiwokix.iblogger.org/96035719748.pdfIn PDF document text
    • https://cdn.sqhk.co/zupisopad/X8GHIrS/redagugalodigiduk.pdfIn PDF document text
    • http://rakodunugi.iblogger.org/androidx_fragment_ktx.pdfIn PDF document text
    • https://gumevimarijefa.weebly.com/uploads/1/3/1/0/131071167/pefefo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bisaxofawalep.epizy.com/23548055283.pdfIn PDF document text
    • http://rivejekab.epizy.com/jurnal_bioplastik.pdfIn PDF document text
    • http://xetitonaj.rf.gd/91422887086.pdfIn PDF document text
    • http://xenivut.epizy.com/achieve_3000_answers_be_a_biz_wiz.pdfIn PDF document text
    • http://vesevujivodekut.epizy.com/77627109145.pdfIn PDF document text
    • http://wirilobopowemu.rf.gd/43044295618.pdfIn PDF document text
    • http://fojiguxojed.epizy.com/84221971755.pdfIn PDF document text
    • http://bemeridalazobox.epizy.com/aircraft_crash_search_and_rescue_guide.pdfIn PDF document text
    • http://nelipofamarul.epizy.com/assassination_2015_full_movie.pdfIn PDF document text
    • http://varaxekewuveza.epizy.com/96601440994.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_off0000d955.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD955 5360 bytes
SHA-256: d23977850529dce8defa96b3809624c9e9d0d07935bc23765b16b559aeb05701
font_01_sfnt_off0000eb77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB77 11452 bytes
SHA-256: 190b1456b9a327e065b28466cd03198d09a980cf8759708bef106e64493770d7