Malicious PDF — malware analysis report

Static analysis result for SHA-256 967141b9993d46ce…

MALICIOUS

PDF

74.4 KB Created: 2021-02-27 04:22:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9fe0cbf2fb2e8317cb33edccfbf328f1 SHA-1: 1bd607b793093ab38bc1531f31123849d47bb9a0 SHA-256: 967141b9993d46ce211e07088e6bd6cdfd21eb4ecfa76d58d0f314c8de2ae681
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://vilenefex.ru/wb?keyword=brandon%20sanderson%20book%20series%20list PDF link annotation
    • http://texoraw.sportsontheweb.net/38694639909.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483836/normal_5fd767b94e04b.pdfIn PDF document text
    • http://dragonflysagewellness.com/jufivinujudubobifineht7fl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424364/normal_5fe2acfa242df.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496225/normal_5fc826800e76e.pdfIn PDF document text
    • https://dagepafu.weebly.com/uploads/1/3/2/7/132740813/jenaluku_rupelo_zabovedil.pdfIn PDF document text
    • https://verorepu.weebly.com/uploads/1/3/4/7/134774070/7695467.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458837/normal_5fd921706198c.pdfIn PDF document text
    • http://fredo.bike/deropudamal5d3px.pdfIn PDF document text
    • http://reduslim-sito.site/858273080977ps8d.pdfIn PDF document text
    • http://presentinsta.online/hitachi_miter_saw_c12rsh_parts4j8t5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382420/normal_600fbff5261a3.pdfIn PDF document text
    • https://desebenenoda.weebly.com/uploads/1/3/5/3/135348916/6161713.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/faxaxos/affidavit_of_service_ontario_forms.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/pubuwufuvalamexiwuk.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_off0000e8ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8AC 5072 bytes
SHA-256: 8206aa4329c234b262014b81ceb19a93fb3e2acfc7173af77a3c5ebfdb44e777
font_01_sfnt_off0000f9f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9F8 10168 bytes
SHA-256: 896aeebb311dcf6645de36a0c0418d43102a1f45e7ae00aa8565ec6d659bf2ee