Malicious PDF — malware analysis report

Static analysis result for SHA-256 866ade8a7199631b…

MALICIOUS

PDF

72.4 KB Created: 2021-02-27 05:27:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 60b5cca21b0f3fafc9e3f33986000ff2 SHA-1: 2bb4048cdaf5ec8ec1e4738234caf3b1113a0508 SHA-256: 866ade8a7199631b6e4e389f4395359ac37eef7defb9df05818bf979b3e22a97
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://gimoguvi.ru/award?keyword=arduino+uno+schematic+kicad PDF link annotation
    • https://cdn.sqhk.co/jabakujivim/oHjiidI/boom_boom_football_apk_mod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387706/normal_60166fe664712.pdfIn PDF document text
    • https://cdn.sqhk.co/bepemuno/YjgeoWk/drum_set_heavy_metal_music.pdfIn PDF document text
    • https://rojuligu.weebly.com/uploads/1/3/0/9/130969709/nenowenisinukod-lixemux.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/gZ6hMjh/28409018420.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461763/normal_5ff80af1cc425.pdfIn PDF document text
    • https://cdn.sqhk.co/koletexun/aRif0hh/91411724240.pdfIn PDF document text
    • https://cdn.sqhk.co/puberufibo/jhghjfv/galaxy_s20_fe_review_gsmarena.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376879/normal_6038d220d5f44.pdfIn PDF document text
    • https://gilaxisob.weebly.com/uploads/1/3/1/4/131406303/098f801bd4793.pdfIn PDF document text
    • https://dojilosadokadog.weebly.com/uploads/1/3/4/8/134890500/22e53e5ba.pdfIn PDF document text
    • https://cdn.sqhk.co/satijumok/h9KWjz4/83000821273.pdfIn PDF document text
    • https://gomepenet.weebly.com/uploads/1/3/0/8/130874128/zituwu.pdfIn PDF document text
    • https://cdn.sqhk.co/tinulafi/bgchKrY/angry_birds_2_soundtrack_free_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409243/normal_5fc8c83f0efb5.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/fogibi/thompson_center_50_cal_muzzleloader_ballistics.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/fovutubafukubujonu.pdfIn PDF document text
    • https://s3.amazonaws.com/minabiwa/20689699812.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_off0000de73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE73 5200 bytes
SHA-256: c6cb37e540e7b0f992dab1e311f61e724ff2b8c4badf77dc0d85c8841558a76a
font_01_sfnt_off0000eff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF4 11060 bytes
SHA-256: 0e20a85132d694f27d5232ada7394c4c0d975a2af739d0d2788a2cf6cac7f67e

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