Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee3b846c4b611673…

MALICIOUS

PDF

70.8 KB Created: 2021-02-15 23:26:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: aed2e3d256d38ede039d3dd67bf54ada SHA-1: b9f27882cf54779a45dca5d41527cbbd5d85e521 SHA-256: ee3b846c4b611673456b4e0a03ff5cb1fa6f324f568206db330c6e3f5910ea56
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jottigo.ru/123?utm_term=netgear+wgr614v7+firmware PDF link annotation
    • https://gugagefa.weebly.com/uploads/1/3/4/3/134343265/6cb3ea29dd4.pdfIn PDF document text
    • https://sowekunozo.weebly.com/uploads/1/3/5/3/135321923/simesanuxusimaw_dutif_kukikoso.pdfIn PDF document text
    • http://eagleaff.com/fractal_design_meshify_c_guiden6emk.pdfIn PDF document text
    • https://rurefisofe.weebly.com/uploads/1/3/5/3/135325463/tubinezupisin_libitelatef.pdfIn PDF document text
    • http://support-copyrighthelpservice-about.com/run_macro_without_opening_excel_sheetb4x18.pdfIn PDF document text
    • https://tulijibukabez.weebly.com/uploads/1/3/0/8/130814483/gifemobep_wunigilepe_zabejavodar.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393026/normal_5fcd99db781e1.pdfIn PDF document text
    • https://nunipotewisi.weebly.com/uploads/1/3/4/8/134892443/vojitadizovi-wugewonejod-luleses-nitizojufi.pdfIn PDF document text
    • https://wejumarokurefa.weebly.com/uploads/1/3/0/7/130776247/8702471.pdfIn PDF document text
    • https://livurexile.weebly.com/uploads/1/3/2/6/132695833/ab2e260afb6915a.pdfIn PDF document text
    • http://tihefers.online/genel_kimya_vize_sorular_ve_cevaplaogc5m.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455914/normal_5fcc1fbebbb9a.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/pevarijidasalop/48328245697.pdfIn PDF document text
    • http://sefozutobikawu.epizy.com/fire_action_notice_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/periodic_table_with_electron_configuration.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_off0000d6fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6FC 5372 bytes
SHA-256: cadb4997d21e84664ae65e160fbbf2ce4fe240eb146f87cf44ded26f90e2220a
font_01_sfnt_off0000e968.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE968 10804 bytes
SHA-256: 11d9de6051770d52c7b59e35928f2442f69cb64d25af74ed8b8dc3f46617bb85