Malicious PDF — malware analysis report

Static analysis result for SHA-256 21a3636c4676e9de…

MALICIOUS

PDF

66.5 KB Created: 2021-03-01 06:14:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9ee73dcbd53948727aa7c6df4bc1d7a9 SHA-1: f2351d09078601548bed11070d26fab9b66e9aca SHA-256: 21a3636c4676e9defde28df763db4c784fd45f204d899ab0725c203dd53af100
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://maypoin.ru/award?keyword=maytag+3000+series+washer+drain+pump PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4467576/normal_5fe7011f1aed0.pdfIn PDF document text
    • http://magicwoolshop.com/togejakok31ods.pdfIn PDF document text
    • http://lijijuzopos.iblogger.org/adobe_photoshop_6_tutorial_for_beginners.pdfIn PDF document text
    • https://cdn.sqhk.co/moturalogupe/nk0jcjj/sixaserowikamolemuv.pdfIn PDF document text
    • http://nopuvobetag.mygamesonline.org/xejawa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382974/normal_5fce3fdda5909.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496585/normal_5fe405f75c8cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408004/normal_601107cb23948.pdfIn PDF document text
    • http://harmony-market.ru/cv_template_free_designy6mfe.pdfIn PDF document text
    • http://nejupike.mygamesonline.org/40517057843.pdfIn PDF document text
    • https://cdn.sqhk.co/rubuxupab/iiggihh/speedtest_by_ookla_desktop_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423189/normal_6032b9c21e0a9.pdfIn PDF document text
    • http://moxilekulina.getenjoyment.net/sadajikefenutugafugilig.pdfIn PDF document text
    • https://cdn.sqhk.co/darojopul/ovbeijJ/vmod_2_user_manual.pdfIn PDF document text
    • http://nibewubixela.getenjoyment.net/27531979069.pdfIn PDF document text
    • http://fitness1.space/pufufezaluvanunoluzov7iqjd.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/falufusu/38091830545.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/chandraghanta_mata_images_hd.pdfIn PDF document text
    • http://fipuxogililego.epizy.com/2256201875.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/addition_word_problems_year_2_worksheets.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_off0000c6d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6D3 5848 bytes
SHA-256: db372c475121fd2ee9303ab42b26394659bb494f26f9fe366295ff984e69358a
font_01_sfnt_off0000dab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB6 10032 bytes
SHA-256: 842c3d830f1d99309dedb0e43f84a93f48fc0f4093b78538920f19bc57299a11