Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba23385333dd4fd…

MALICIOUS

PDF

38.3 KB Created: 2020-10-26 12:13:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 9c36925ac61ee1d388a2d9545c310737 SHA-1: e6644c6772981499c9c50c9389a55318c2f76a58 SHA-256: aba23385333dd4fdfdd99e4b55d68c975476ad5d9861c0267ad2cbe199caf3c4
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://ttraff.me/pify?keyword=jurnal+paradigma+penelitian+kualitatif+pdf In PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/7049f4.pdfIn PDF document text
    • https://koxoganonigowup.weebly.com/uploads/1/3/1/4/131408343/1d9526b8b2.pdfIn PDF document text
    • https://tumovapexawezan.weebly.com/uploads/1/3/1/3/131398362/tawagonulo_lazolike_pomosukiwesega_vokofala.pdfIn PDF document text
    • https://galebekamabe.weebly.com/uploads/1/3/4/3/134305591/3271775.pdfIn PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/lafovajapikigo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365642/normal_5f872f1ee92ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380863/normal_5f90068f9d7f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389794/normal_5f95502184295.pdfIn PDF document text
    • https://jikubefu.weebly.com/uploads/1/3/4/3/134318914/70a21d00a6e8.pdfIn PDF document text
    • https://kodowogokilikid.weebly.com/uploads/1/3/4/4/134466607/0b421b547f12.pdfIn PDF document text
    • https://zekasujiminog.weebly.com/uploads/1/3/4/3/134366003/88b942368.pdfIn PDF document text
    • https://juzomewe.weebly.com/uploads/1/3/4/3/134350864/ketiwafutobivek.pdfIn PDF document text
    • https://tenikekiso.weebly.com/uploads/1/3/0/7/130775729/7665880.pdfIn PDF document text
    • https://saxexowiki.weebly.com/uploads/1/3/0/9/130969873/loxujojotufonef-muselub.pdfIn PDF document text
    • https://berajuvexoru.weebly.com/uploads/1/3/1/8/131860787/zekipofusukux.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/wituvejaji.pdfIn PDF document text
    • https://tixovokibena.weebly.com/uploads/1/3/4/1/134109053/f98bdd.pdfIn PDF document text
    • https://zadumeredevasax.weebly.com/uploads/1/3/1/4/131453870/3c431b0c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7aa5cb5-bc2f-4ce5-8db7-9725f4d3f044/mudev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba7d2570-0b89-46a7-b3f4-ceef601bb8b2/rekinojafepofufokatoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85a99155-a793-4a79-9ca4-910dac8b95f6/rozemibova.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f904a2d6-57f5-4918-ae7e-72e8c8eb4798/jutejogaxezupok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8473/3334/files/streetwise_security_products_warranty.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/4042/3091/files/tu_dien_la_ban_apk.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_off00005518.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5518 5236 bytes
SHA-256: af69963200579eaf1903d8e50268503ffd46a562d8a3e6e216d28c1d1ac1ecdd
font_01_sfnt_off000066db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66DB 10884 bytes
SHA-256: 82d1d3af2c941f5297a3147e905d6e17498f2e49138f0c0dbd291a7aa2f27b15

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