Malicious PDF — malware analysis report

Static analysis result for SHA-256 92c3a7d5b0b9c632…

MALICIOUS

PDF

70.2 KB Created: 2021-02-19 01:14:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a8c61d8af61f6a2257433c27e0b531bf SHA-1: 1bd165ade260fe432c9870718b64b6bfb3a56830 SHA-256: 92c3a7d5b0b9c632b85da16c98ee62dbc9990a31595e4dccec894a7ba2d53b56
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=garageband+for+pc+alternatives PDF link annotation
    • https://mipirizu.weebly.com/uploads/1/3/2/6/132682564/vozexifexuk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375515/normal_601a47d07bceb.pdfIn PDF document text
    • https://bevotiwi.weebly.com/uploads/1/3/1/4/131437753/lalilomutawas-xibap-rezafoxij-raxetoz.pdfIn PDF document text
    • https://pusobufuronuwu.weebly.com/uploads/1/3/4/4/134475569/6aa0e038cb40b9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478415/normal_5fc83c71c2376.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454977/normal_5ff6842c2dd00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369788/normal_600ee4eb5b352.pdfIn PDF document text
    • https://notefusiwedamap.weebly.com/uploads/1/3/4/8/134872173/xejuvi.pdfIn PDF document text
    • http://olymptrade.buzz/greenlee_dm-20_troubleshootingu0zor.pdfIn PDF document text
    • http://strita.space/sscanf_format_floathypov.pdfIn PDF document text
    • https://xozejobe.weebly.com/uploads/1/3/1/4/131406614/3122493.pdfIn PDF document text
    • http://hookup154.site/pesezagowasurbxdi6.pdfIn PDF document text
    • https://zofudugopevemob.weebly.com/uploads/1/3/1/6/131607066/452b8.pdfIn PDF document text
    • http://pixelbarista.com/xilevakezepovosusuwajedenr6jv.pdfIn PDF document text
    • https://nivumumati.weebly.com/uploads/1/3/4/7/134703955/giwifexigaxupiju.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370080/normal_5fd9584b377fd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d590.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD590 5552 bytes
SHA-256: d162204812819cb80073a5c021d3ae863212277d7b145100cb62b4b403697f0e
font_01_sfnt_off0000e889.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE889 10424 bytes
SHA-256: 5752c8daf6363787a0c23a44904c1542d5a812d09eae8191320154efdef1dff2