Malicious PDF — malware analysis report

Static analysis result for SHA-256 00f74b8b4c78b896…

MALICIOUS

PDF

58.4 KB Created: 2020-10-05 21:57:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 9bb353b484841024e85dcb3db95ebada SHA-1: 818ad5114b186f0a23bcc10999b761a2499e704c SHA-256: 00f74b8b4c78b89622437489d800f3efcd8c37f644cffc86738ced8454ac6132
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=ashton+manual+diazepam+taper In PDF document text
    • http://files.yogalotuspond.com/uploads/1/3/0/8/130874431/6ed023ad6e5ece7.pdfIn PDF document text
    • http://fezajuki.themeetingplace-cafe.com/uploads/1/3/1/3/131398134/meneliwokoku.pdfIn PDF document text
    • http://rafaxula.madhatterrestaurantandbakery.com/uploads/1/3/1/3/131379578/3e652acce8ed9c.pdfIn PDF document text
    • https://site-1038985.mozfiles.com/files/1038985/13039537606.pdfIn PDF document text
    • https://site-1042737.mozfiles.com/files/1042737/kikagafitirevosowanusi.pdfIn PDF document text
    • http://files.zeniegroup.com/uploads/1/3/0/9/130969681/zunisavanovosu_kaviriz_fedajafoxetopin_koposof.pdfIn PDF document text
    • http://nawuj.cocktailcrewindia.com/uploads/1/3/2/7/132712127/3541034.pdfIn PDF document text
    • http://files.psautoworks.com/uploads/1/3/0/7/130739398/c3f81b866118b.pdfIn PDF document text
    • http://files.declutteringspaces.com/uploads/1/3/0/8/130814246/moriwavoli.pdfIn PDF document text
    • http://files.statesocietyofflorida.org/uploads/1/3/1/6/131637419/bonudosaguniwal.pdfIn PDF document text
    • http://files.servingafrica.org/uploads/1/3/1/4/131453990/2e6fcb5277806b.pdfIn PDF document text
    • http://files.rcdavis-tellinstories.com/uploads/1/3/1/3/131383624/ebc2656e5828c5.pdfIn PDF document text
    • http://files.accentedglory.com/uploads/1/3/0/8/130814017/8982276.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00009d6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D6A 5236 bytes
SHA-256: 998413ceaf0418d504b4ccb90d34a5f579c2031fe97c169b2a4871bfcd2eab3e
font_01_sfnt_off0000af12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF12 14904 bytes
SHA-256: f0ef6192b66baf7c6723c2ba5c68e27ab4aa06de3eb103cc73a43e47629b958e