Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0c568e68db47b0c…

MALICIOUS

PDF

35.6 KB Created: 2020-11-07 13:21:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: d74c7d056c16feccbcbb9379e6d80b8f SHA-1: 2ab190d3a8e35d22d2943f416fb7013380964529 SHA-256: b0c568e68db47b0c32cc4de607a00872982b7ee96757a9730473784b6cec64b2
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafficel.ru/123?keyword=realtime+parent+portal+north+bergen PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4445754/normal_5fa3d94e22757.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://uploads.strikinglycdn.com/files/9e5a4381-76d3-4dd8-9689-a4e1a74eee87/wesabozotuguzejedupufaze.pdfIn PDF document text
    • https://nodexedi.files.wordpress.com/2020/11/negijibepodap.pdfIn PDF document text
    • https://rogiwojugafi.files.wordpress.com/2020/11/musanin_cocuklari_kitap.pdfIn PDF document text
    • https://ludepofode.files.wordpress.com/2020/11/manual_photoscape_v3.7.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/business_information_systems_paul_bocij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71866568-8701-4ff7-84db-4d2855b93573/ligobinatulobu.pdfIn PDF document text
    • https://zoniwika.files.wordpress.com/2020/11/la_montana_de_los_siete_circulos_thomas_merton.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/430981fc-2325-49c5-919a-8af0ab3cac56/75747902759.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9557f9aa-88e9-4722-886e-cc711c895b5f/69412377032.pdfIn PDF document text
    • https://kebupud.files.wordpress.com/2020/11/16674380217.pdfIn PDF document text
    • https://pupirod.files.wordpress.com/2020/11/sagob.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_off000042e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42E4 4992 bytes
SHA-256: 94f61588878eafa6c0d6606fc580269b8d2c65dc7f5d292274917ac1011da229
font_01_sfnt_off000053a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53A3 9336 bytes
SHA-256: 67a2b96d8c295269bdd43ae192109691d112533161355aa4a1fd4e6a1099d0ae
font_02_sfnt_off000073ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73AD 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378