Malicious PDF — malware analysis report

Static analysis result for SHA-256 826449c4ea23ff66…

MALICIOUS

PDF

72.5 KB Created: 2021-03-08 06:45:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d47f9a5c0e2f4b72a2900f620bb8ef39 SHA-1: 37756f19fa462bc87e908272163e50eaceb3091b SHA-256: 826449c4ea23ff66f69187b017fe3da09f3e79f7dd25bbc85d0101529303ddec
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://jacksth.ru/wix?keyword=northland+cable+channel+guide+greenwood PDF link annotation
    • https://moliveje.weebly.com/uploads/1/3/5/3/135323163/fafigigixubijat.pdfIn PDF document text
    • https://vatipasa.weebly.com/uploads/1/3/0/7/130775610/5996092.pdfIn PDF document text
    • http://ritegifufefut.scienceontheweb.net/ejercicios_resueltos_de_identidades_trigonometricas_para_secundaria.pdfIn PDF document text
    • https://cdn.sqhk.co/gutifusuf/jd7ibMU/super_tank_game_free_download.pdfIn PDF document text
    • https://mizugoveram.weebly.com/uploads/1/3/3/9/133986338/7268397.pdfIn PDF document text
    • https://visumosibe.weebly.com/uploads/1/3/0/8/130814065/pewuni.pdfIn PDF document text
    • https://watorixaziju.weebly.com/uploads/1/3/4/5/134586039/3424058.pdfIn PDF document text
    • https://cdn.sqhk.co/tedigedubemi/gjcWjea/85155112126.pdfIn PDF document text
    • https://cdn.sqhk.co/delopomixaba/GNjh29v/minecraft_servers_survival_with_friends.pdfIn PDF document text
    • https://cdn.sqhk.co/nujudemugipi/i1gfp8C/lirenabuzimomubona.pdfIn PDF document text
    • https://cdn.sqhk.co/xedufoga/9aQohdf/30836005088.pdfIn PDF document text
    • http://manuximaxemeje.scienceontheweb.net/how_to_program_motorola_walkie_talkie.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/wavunot/cido_sulfrico_frmula_es.pdfIn PDF document text
    • https://c1bbde11-5cda-4f7c-8b74-b2fe90b484f5.filesusr.com/ugd/1c8c6c_64ee0a7a47f140978943e7fc2d69b77b.pdf?index=trueIn PDF document text
    • http://lodumojokexiku.onlinewebshop.net/1994_sea_ray_200_signature_owners_manual.pdfIn PDF document text
    • https://7afd96e6-4611-46d4-9b98-d111b897c281.filesusr.com/ugd/154221_1f40b2c210b24492a9512f3bac445bae.pdf?index=trueIn PDF document text
    • https://8e12fe21-47c1-448c-af9e-883e7c84523b.filesusr.com/ugd/52ac5e_a8233160876a4529bb24e23cd2b1b2ef.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/cite_website_sources_apa_format.pdfIn PDF document text
    • http://kapirexazi.onlinewebshop.net/how_to_find_each_interior_angle_of_a_regular_polygon.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_off0000ddf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF5 5224 bytes
SHA-256: 42b90f41f89554c4e3ad03c02c30c5f742c32a05a20c4f6b63e86d449b0a8146
font_01_sfnt_off0000efc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC7 11096 bytes
SHA-256: ab2e33165289aa9cbd692c3149f6f68ecdb87962119081110865c44e1f9cf699