Malicious PDF — malware analysis report

Static analysis result for SHA-256 12312d951934f6af…

MALICIOUS

PDF

72.5 KB Created: 2021-03-02 07:26:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: efa26abf004a37dbb7df944ddece3a88 SHA-1: 0e8d7389e835f3f16b3efe3161ba83104aa5dad1 SHA-256: 12312d951934f6aff5648f6edd183e909c987df26f6d92f3aec8ef934fc038ea
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://golowaki.ru/wix?keyword=briggs+and+stratton+9d902+service+manual PDF link annotation
    • http://vidoroxujo.22web.org/xesar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498324/normal_5fd9fbef5238d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475734/normal_601332450ba5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411932/normal_60184023ca517.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485296/normal_5fe9713ba1c02.pdfIn PDF document text
    • http://amaryllis.space/retim_ilke_ve_yntemleri_ders_notlar_slaytz3zmq.pdfIn PDF document text
    • https://cdn.sqhk.co/fenazijeguk/ehg2hjg/mejiwinaror.pdfIn PDF document text
    • http://bestgirl69.com/standard_proctor_compaction_test_lab_reportff4px.pdfIn PDF document text
    • https://cdn.sqhk.co/tevunufoba/zicTbgj/mijuzaxalawakepap.pdfIn PDF document text
    • https://kanunobak.weebly.com/uploads/1/3/1/0/131070574/8497335.pdfIn PDF document text
    • https://cdn.sqhk.co/vivakawibaki/IeMic7V/ninja_flip_up_air_fryer_toaster_oven.pdfIn PDF document text
    • http://lienforkid.com/30639106044xrd0k.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374843/normal_60196e64b45f0.pdfIn PDF document text
    • http://believes.space/wozenalorikomimetuxawxmov.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://xegiseko.epizy.com/95806281606.pdfIn PDF document text
    • http://fereralud.epizy.com/45544213651.pdfIn PDF document text
    • http://zawanaxakav.epizy.com/zebco_slingshot_spinning_reel_and_fishing_rod_combo.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/62527864071.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cfbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFBB 5680 bytes
SHA-256: acdf59168b535e000d5098d1bfb0a663494107742655aa4f3d1f3dafac5e93cd
font_01_sfnt_off0000e2f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2F0 10868 bytes
SHA-256: 649443680d808e1dd6386c9c77d32d545f3a72184c71b4fa7958e8f6c2c7d274
font_02_sfnt_off00010673.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10673 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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