Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dd7e50c241ff9ed…

MALICIOUS

PDF

43.0 KB Created: 2020-10-08 00:02:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1f9d5350c7a9de5a389d16f21ba178ed SHA-1: adea50d3570160f8cfeccf92578b102536f215ac SHA-256: 0dd7e50c241ff9ed790d8b04afb3b8dbdfde7a82f491069cd9e638b6d51e93de
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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://gettraff.ru/pify?keyword=lord+of+the+flies+spark+notes In PDF document text
    • https://site-1037212.mozfiles.com/files/1037212/pivapebavunoxu.pdfIn PDF document text
    • https://site-1039311.mozfiles.com/files/1039311/7235116187.pdfIn PDF document text
    • https://site-1037889.mozfiles.com/files/1037889/zilafelul.pdfIn PDF document text
    • https://site-1043119.mozfiles.com/files/1043119/42254237799.pdfIn PDF document text
    • https://site-1042502.mozfiles.com/files/1042502/pumijadanolokuxumerazim.pdfIn PDF document text
    • https://site-1038608.mozfiles.com/files/1038608/47481571961.pdfIn PDF document text
    • https://site-1036724.mozfiles.com/files/1036724/mopenusujoropuzewojazad.pdfIn PDF document text
    • http://files.laraknutson.com/uploads/1/3/1/4/131406430/e2de284309174e7.pdfIn PDF document text
    • http://nameka.bow4290.org/uploads/1/3/0/7/130775918/napesakap.pdfIn PDF document text
    • http://files.emmanuelbaptistchurchtn.com/uploads/1/3/1/4/131453215/rotikudinisetilazo.pdfIn PDF document text
    • http://vovav.bluebellwoodflorist.com/uploads/1/3/1/4/131438563/worotukali_gutekuwitem_xubupo.pdfIn PDF document text
    • http://files.align4life.net/uploads/1/3/1/8/131858916/nuwuporelezexojipu.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/1/0432/8646/2628/files/21826864988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/9931/5104/files/atomic_theory_1.2_isotopes_and_average_atomic_mass_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/0559/4781/files/29637708948.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_off00006d4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4C 5132 bytes
SHA-256: e2627fb04c0bd9136f99436443ed2f21c02a6bfd065b4df8fcd200afa432bb81
font_01_sfnt_off00007ec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC2 9736 bytes
SHA-256: 1fba37e8dedc9fa86bde36528808df44771d3627752cf2b6d681a6bb1d362c8e