Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c95c883344ad7ed…

MALICIOUS

PDF

36.8 KB Created: 2020-11-02 22:58:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 70ce3af4354ec7b739660e4e6b0dd900 SHA-1: 7c2881056347b0f73848f9fe906fa3eed738439e SHA-256: 0c95c883344ad7ed520bd90763638875da34b393ee019c111a2c5663497231aa
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://ggtraff.ru/123?keyword=tomtom+via+1505tm+manual In PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/ledediva-tereja-benuliv.pdfIn PDF document text
    • https://sebonegipuwi.weebly.com/uploads/1/3/4/1/134108682/565797.pdfIn PDF document text
    • https://damijuvik.weebly.com/uploads/1/3/1/3/131381376/1765889.pdfIn PDF document text
    • https://xogexemufak.weebly.com/uploads/1/3/1/4/131437987/ferulefigujebovepa.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/pofesaref-ninamakelo.pdfIn PDF document text
    • https://gusumadanu.weebly.com/uploads/1/3/2/6/132695601/25d898778.pdfIn PDF document text
    • https://biwireteput.weebly.com/uploads/1/3/4/1/134131636/nanofixokufunem.pdfIn PDF document text
    • https://pirizujimo.weebly.com/uploads/1/3/4/4/134454944/vurigubew_puluvetorene.pdfIn PDF document text
    • https://dokakida.weebly.com/uploads/1/3/1/3/131380589/7460340.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/jolituzoji/analytical_geometry_worksheets_grade_10.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/simple_present_tenses_exercises_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/8084597914.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_off000053ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53FF 4884 bytes
SHA-256: 8fd802175a3f8334365d9597860c83152c6b0a99d8db3c5a2b94e14bceaa9aeb
font_01_sfnt_off0000649a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649A 10008 bytes
SHA-256: 6c8edafa05a5da45dbe79f9d053db60e8a73bd79794cf55e299bf3dfac4d8f29