Malicious PDF — malware analysis report

Static analysis result for SHA-256 3593d4e253d77a2d…

MALICIOUS

PDF

66.9 KB Created: 2021-02-19 20:44:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: dd8c5cfc94b421d24d1ca3f0a8606c6a SHA-1: 482cff8c490c9c2bd9e6dd985dba5c9ff8b21530 SHA-256: 3593d4e253d77a2db372aa5014b7072e70172897daab8ddfdaadeeb6d3d51355
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://druttle.ru/wix?keyword=naming+carboxylic+acids+worksheet+with+answers+pdf PDF link annotation
    • https://votivugaxowo.weebly.com/uploads/1/3/1/1/131163932/monasadenerokutisin.pdfIn PDF document text
    • https://kilejotiwig.weebly.com/uploads/1/3/1/4/131406519/ziretegufarekufofa.pdfIn PDF document text
    • https://sivajusirev.weebly.com/uploads/1/3/0/8/130814673/cdcab950cf.pdfIn PDF document text
    • https://zisatusomet.weebly.com/uploads/1/3/4/8/134872515/pekamiwepaw.pdfIn PDF document text
    • http://miravatiz.22web.org/cules_son_los_tipos_de_investigacin_experimental.pdfIn PDF document text
    • https://rajuputodetu.weebly.com/uploads/1/3/4/6/134682309/a7c36e1f.pdfIn PDF document text
    • https://nomikevokatipo.weebly.com/uploads/1/3/1/8/131859895/2324817.pdfIn PDF document text
    • https://fegikunula.weebly.com/uploads/1/3/4/4/134482285/3852872.pdfIn PDF document text
    • https://rikizanasurixa.weebly.com/uploads/1/3/1/3/131379420/23440b25a799.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481272/normal_6013a4e5ec48b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412757/normal_600dba2e236a8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://litopuputorer.rf.gd/worksheets_on_tenses_for_grade_8.pdfIn PDF document text
    • http://lutolajawaw.rf.gd/85755292665.pdfIn PDF document text
    • http://dagajevefud.epizy.com/45687852702.pdfIn PDF document text
    • http://bumilamufitilu.epizy.com/learning_disabilities_types.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_off0000c2ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2AB 6004 bytes
SHA-256: d11d1719e30cdc371e21f4a683987a4fe032df430811f3fdfe7d5fb508c8b58c
font_01_sfnt_off0000d711.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD711 11816 bytes
SHA-256: 62b10e6c1c56650e18ad0954f9d5a649de2ef0befd5a0561367a0138b752c9ec