Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3a4256a6e5564cf…

MALICIOUS

PDF

66.8 KB Created: 2021-03-06 07:43:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b4257e11f94d0f6cf8e1167feae8591e SHA-1: 8bf11ebe13d885f3b342a65a66fd0bee70ebf91c SHA-256: d3a4256a6e5564cf10c6534632278a882033712cc09453b6a7d1506b8af91453
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://bologen.ru/wix?keyword=the+human+brain+colouring+book+pdf PDF link annotation
    • https://cdn.sqhk.co/dubikureta/0ibijja/tinopetame.pdfIn PDF document text
    • https://mofagobebaz.weebly.com/uploads/1/3/4/6/134633285/gativafuganigidut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499021/normal_5fdab075651bf.pdfIn PDF document text
    • https://cdn.sqhk.co/madufuxenuw/7ozjiuB/jikiwebepujujixajur.pdfIn PDF document text
    • https://vivutavolid.weebly.com/uploads/1/3/4/3/134308799/bixol-vosavane-wijukuzox-maxiwis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388181/normal_602f7af7b6f76.pdfIn PDF document text
    • http://edarudost.online/nostalgia_ice_cream_maker_at_walmartio5xj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391954/normal_5fddccfed32ce.pdfIn PDF document text
    • https://cdn.sqhk.co/besogevipadi/XFKhbgi/27844201535.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366027/normal_5fd78cc522c3e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403557/normal_5fcd0b6f1549e.pdfIn PDF document text
    • https://cdn.sqhk.co/fasegibuniz/icibijD/nintendo_switch_online_store_canada.pdfIn PDF document text
    • https://cdn.sqhk.co/pulovafafita/ggCrggK/diserumapawov.pdfIn PDF document text
    • http://itfamily.pro/baasha_full_movie_300mboakub.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6b43025-3a7c-491f-92b0-cad59d1dd852/what_establishes_a_relationship_between_two_quantities_in_the_table.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66019edc-764d-480c-9ffa-9e607e9e2ed5/87645212128.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_off0000cae6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAE6 5544 bytes
SHA-256: bd8f2b8f37c2ff2303a08e6edc26052deb94f1877eae6037fc56491b931597a9
font_01_sfnt_off0000dd8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD8C 9544 bytes
SHA-256: 477d7fc9c093e35a3c5337935e738d7a64e5eab223e5250c3d4d1a6e95ba6312

Open this report in the interactive analyzer, or submit your own file for analysis.