Malicious PDF — malware analysis report

Static analysis result for SHA-256 3901f5f152f88786…

MALICIOUS

PDF

69.6 KB Created: 2021-02-19 23:33:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5452d243d57751e160d60afa27115d4f SHA-1: f66df4949002b537d06744c5c510820f88f354f0 SHA-256: 3901f5f152f88786b94879219616dae072008791d13b966e240ce45366a87cfe
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/wix?keyword=harmony+ultimate+one+remote+manual PDF link annotation
    • https://gupapuna.weebly.com/uploads/1/3/4/7/134726568/xagubuneves.pdfIn PDF document text
    • http://beliyden.xyz/73103883244an22u.pdfIn PDF document text
    • https://vudelugofede.weebly.com/uploads/1/3/4/3/134383428/bulumutawimibafusu.pdfIn PDF document text
    • http://alisaborodaenko.design/sort_ascending_crystal_reports09dy6.pdfIn PDF document text
    • https://dagakaxogofawi.weebly.com/uploads/1/3/4/6/134699425/sivaduzesazum-fewexafen.pdfIn PDF document text
    • http://creditreportus.info/bing_translator_for_windows_8._10g41u.pdfIn PDF document text
    • http://reduslim-shopofficial.site/singularity_2017_movie_parents_guidek4ufz.pdfIn PDF document text
    • http://denizan.com/problemas_de_horas_minutos_y_segundos_5o_primaria0qnhw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421770/normal_5fea283fd02dd.pdfIn PDF document text
    • https://penuwoguf.weebly.com/uploads/1/3/6/0/136056634/2439289.pdfIn PDF document text
    • https://kujegafibez.weebly.com/uploads/1/3/4/2/134265926/12f742d9bbf297e.pdfIn PDF document text
    • https://kelulove.weebly.com/uploads/1/3/0/7/130775366/df2dd323779668.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489595/normal_601b19f617576.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372753/normal_6026dd75003f6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nomekerileme.epizy.com/java_string_format_signed_integer.pdfIn PDF document text
    • http://taxisariwoboduz.epizy.com/nogefujo.pdfIn PDF document text
    • http://gagonunanu.epizy.com/wewubimepadane.pdfIn PDF document text
    • http://duximepameme.epizy.com/9558825650.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_off0000d571.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD571 4716 bytes
SHA-256: 2f3f944a1b57fdb60bae22e15d10ce1c499bd9f9fc2a01666e3e505b820ffc36
font_01_sfnt_off0000e567.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE567 10640 bytes
SHA-256: 264299784df911f7f607b5f870da93767bf0ecfff2425d1d2ae7a6d820f5358e