Malicious PDF — malware analysis report

Static analysis result for SHA-256 79752fe8714fc867…

MALICIOUS

PDF

81.4 KB Created: 2021-02-26 20:06:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2efd3f550fd42d73e0ad221e96cdc9b1 SHA-1: 963f194e0afe9181df36aa761289fd0136c04815 SHA-256: 79752fe8714fc867a8dc52d0d6d6a081e3ab2885a56a0eb7a0e0dc37e82c143f
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://dugedepap.ru/award?keyword=country+guitar+licks+in+g PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374545/normal_602869b2bc209.pdfIn PDF document text
    • http://nekretnine.site/mupexujekaromevulebarawalv1.pdfIn PDF document text
    • http://sdfsdfsdf.shaketorch.com/14672243042.pdfIn PDF document text
    • http://byt-upak.ru/781179768473qh00.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483354/normal_6002984f68a78.pdfIn PDF document text
    • http://fruits-summer.fun/sokidavogunomomikirdcvk.pdfIn PDF document text
    • https://mokapojigum.weebly.com/uploads/1/3/4/6/134690111/vugulise.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369164/normal_5ff682ebd0684.pdfIn PDF document text
    • http://ductsunlimitedins.com/tigofelivesemusogep2f6c.pdfIn PDF document text
    • http://gakebapenabe.iblogger.org/tedezibepupuzadenebub.pdfIn PDF document text
    • https://cdn.sqhk.co/jovuvufoxet/hbPokii/jipumewu.pdfIn PDF document text
    • https://bovimifukid.weebly.com/uploads/1/3/4/8/134882826/9643993.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lowevuribif.epizy.com/12268759358.pdfIn PDF document text
    • http://gusizozubamu.epizy.com/72397319992.pdfIn PDF document text
    • http://gateguka.epizy.com/wagomidopapizawazofeti.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_off00010371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10371 5036 bytes
SHA-256: 066638adf9dd5d039a70ba0cfa6986714a7d77eb4e241544b8380eb56ec0916d
font_01_sfnt_off000114ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114AE 10768 bytes
SHA-256: 672bd1f7f82ab33aaf80241a3fdb46d7f0bee14883c1fdb7b20df3a87d954c11