Malicious PDF — malware analysis report

Static analysis result for SHA-256 a05c61f2189a9ec8…

MALICIOUS

PDF

58.5 KB Created: 2020-10-01 20:07:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: f8154585fc49ac98b7be5bbe10bff1a8 SHA-1: bcd8353227ec1008954006b026bd92737257b7d9 SHA-256: a05c61f2189a9ec83f58a22592c67180eb8d0b66bbf3708a38a9e547821bdcae
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://cctraff.ru/strik?keyword=227+bodyweight+exercises+pdf In PDF document text
    • http://daneb.jcweber.com/uploads/1/3/1/1/131164312/96a7043.pdfIn PDF document text
    • http://puxenar.hebrewthroughmovement.org/uploads/1/3/0/8/130874381/521046.pdfIn PDF document text
    • http://files.cabarrusflyers.com/uploads/1/3/1/4/131453245/646755.pdfIn PDF document text
    • http://files.cdheducationalcenter.org/uploads/1/3/1/8/131856852/paxop_tofanotur_fisanaja.pdfIn PDF document text
    • https://site-1037238.mozfiles.com/files/1037238/mogonezuxuwebefefewad.pdfIn PDF document text
    • https://site-1036871.mozfiles.com/files/1036871/xezimosamirama.pdfIn PDF document text
    • https://site-1037844.mozfiles.com/files/1037844/xizoduviwonov.pdfIn PDF document text
    • https://site-1039903.mozfiles.com/files/1039903/rizip.pdfIn PDF document text
    • https://site-1039922.mozfiles.com/files/1039922/20419022581.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/9162/6657/files/project_management_achieving_competitive_advantage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/7379/3948/files/cross_disciplinary_skills_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2133/4688/files/rakidemoxonasitenuxazep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/2067/6004/files/eso_attribute_points_warden.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/1788/1768/files/creo_drawing_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4210/2679/files/husqvarna_701_service_manual.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000096d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96D5 5692 bytes
SHA-256: 855f043d7f485978eb6be5a17925def99698901305359dcd50ef238ef19f2f48
font_01_sfnt_off0000aa5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA5E 16360 bytes
SHA-256: c3ed5b492f73d587abd75639bbd736b58887d01fa69640200089855fa3c144e7

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