Malicious PDF — malware analysis report

Static analysis result for SHA-256 96c1d21b2d770452…

MALICIOUS

PDF

72.5 KB Created: 2021-03-04 11:55:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b394834a0e94f0fa6c81442f016905ac SHA-1: f159dc9839b5d1c31f07d7aa43361bee23c06905 SHA-256: 96c1d21b2d77045243825679fd9d057a1d31776dd08b3eaab9cee54a3a1bfc5d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/award?keyword=nike+air+force+1+pixel+gold+chain+white PDF link annotation
    • https://cdn.sqhk.co/temirikuji/fc7Cd3e/vitamix_costco_coupon.pdfIn PDF document text
    • http://deemonatrafik.xyz/4317282348z2x4v.pdfIn PDF document text
    • https://naxaletuzo.weebly.com/uploads/1/3/4/5/134508506/e075be501002.pdfIn PDF document text
    • https://cdn.sqhk.co/vadavenaw/jgdZjju/minecraft_pocket_edition_skins_2020.pdfIn PDF document text
    • https://lubavezutumeji.weebly.com/uploads/1/3/4/7/134757539/famon-dotuwozexitino-rivedu-petagibadik.pdfIn PDF document text
    • https://cdn.sqhk.co/lopumilekana/v8jdghJ/59659468622.pdfIn PDF document text
    • https://cdn.sqhk.co/makafabakuna/ihTyje7/11473140602.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390366/normal_603d61d954d51.pdfIn PDF document text
    • https://pibiwija.weebly.com/uploads/1/3/4/8/134896476/wodogaxative.pdfIn PDF document text
    • http://fitnesspack.net/practica_de_sumador_y_restador_de_4htxti.pdfIn PDF document text
    • https://dejegudiferu.weebly.com/uploads/1/3/1/8/131857494/jedutakupudowun-gutusodif-zofikowi.pdfIn PDF document text
    • http://qqkaxes.xyz/biomass_supported_solar_thermal_power_plantsj0yt.pdfIn PDF document text
    • http://aov.one/fenix_2.0_vaporizer_accessorieshffkz.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/wixatax/robokabimam.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/doperijitopulage.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/sedijefib.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwuzerijofa/63207597409.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/guided_pathways_dcccd.pdfIn PDF document text
    • https://s3.amazonaws.com/taturi/canciones_y_acordes_de_guitarra_gratis.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_off0000da7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA7F 5484 bytes
SHA-256: 6527e211fb3a8e6c6b3c380ffeec0161d6338fbe32937795fcc7d1e547fcf205
font_01_sfnt_off0000ed44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED44 10904 bytes
SHA-256: a9504d6ab7f6b071fb03c6e632baa501a3341a5a87c30d5f4de3ae454c064314