Malicious PDF — malware analysis report

Static analysis result for SHA-256 051eb0a3564436ae…

MALICIOUS

PDF

49.8 KB Created: 2020-10-15 22:56:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: fb3ba9796e72e077352f415afd0fad5c SHA-1: 53af5c1c2cf5454312ee01a085112d66b42f7f0e SHA-256: 051eb0a3564436aeeea010eaf5644af648d4252dac84159a0de0f70c5b87c108
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://gettraff.ru/pify?keyword=casio+g+shock+module+5081+manual In PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/2540998.pdfIn PDF document text
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/1668146.pdfIn PDF document text
    • https://wozukofa.weebly.com/uploads/1/3/2/3/132303282/b37e69.pdfIn PDF document text
    • https://site-1039235.mozfiles.com/files/1039235/zazibuvez.pdfIn PDF document text
    • https://site-1037267.mozfiles.com/files/1037267/gowikokuregebaje.pdfIn PDF document text
    • https://site-1040998.mozfiles.com/files/1040998/duvazesefanasitabe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366324/normal_5f8761f8a411f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367960/normal_5f87c16477dca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368478/normal_5f888d8201d76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365612/normal_5f8747df588cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369504/normal_5f888f435879b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365589/normal_5f8755b7b9c55.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369922/normal_5f880e38188bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365570/normal_5f8750088aa4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366018/normal_5f86f4ab61390.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366306/normal_5f87493142f16.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7026/1914/files/peyton_place_book_vs_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3025/6536/files/active_voice_passive_voice_worksheets_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2071/4137/files/36688272175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5671/7206/files/lowes_cumberland_maryland_phone_number.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d40a84d9-8758-425c-b115-9ed2fd93fd02/nugobunonidibijosomubofeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac1a07d9-db9f-46ed-9b3d-b2b9acebef5a/13699401164.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40323b6b-04e2-439f-9cea-050e3cc513e4/nusujo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d4d3c2b-d553-41a3-a79d-60f28939b8e5/7920856360.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006920.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6920 5656 bytes
SHA-256: 7eb559291dbe9aada581ade05df021dcf42b94abd67599747fa5b0c6e7d21e66
font_01_sfnt_off00007c3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C3F 14960 bytes
SHA-256: f1db5e37701b6ff9806f1fe91df5d4335a225a5738bf89e01fac0d12ec14fed9
font_02_sfnt_off0000aa14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA14 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3