Malicious PDF — malware analysis report

Static analysis result for SHA-256 32fac193e8715d6a…

MALICIOUS

PDF

52.6 KB Created: 2020-10-01 20:35:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 695c5c26eccc74312b126fc30684055a SHA-1: fbc25b61487ee0a4977fc7cb15934dacda966c77 SHA-256: 32fac193e8715d6af814a2d8ce5d6219449642572fd3c1ec6d5a54ba4f9d3c70
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=beautiful+in+white+piano+chords+pdf In PDF document text
    • http://files.wordoflifealaska.com/uploads/1/3/1/3/131384636/1cfc3e34b7f14.pdfIn PDF document text
    • http://files.pyramidodi.com/uploads/1/3/2/8/132814476/japikikofif.pdfIn PDF document text
    • http://penomi.amgswim.com/uploads/1/3/2/7/132712358/xuvagegisajuto-nazojis-xolema.pdfIn PDF document text
    • http://files.librariansonbikes.com/uploads/1/3/0/7/130775056/8165653.pdfIn PDF document text
    • https://site-1038737.mozfiles.com/files/1038737/69622527296.pdfIn PDF document text
    • https://site-1039830.mozfiles.com/files/1039830/kazujufefowekoko.pdfIn PDF document text
    • https://site-1038920.mozfiles.com/files/1038920/26751408409.pdfIn PDF document text
    • https://site-1039190.mozfiles.com/files/1039190/sakerajibajeguzi.pdfIn PDF document text
    • https://site-1038372.mozfiles.com/files/1038372/66757994678.pdfIn PDF document text
    • http://files.myalmightyblog.com/uploads/1/3/1/3/131379832/jabunetex.pdfIn PDF document text
    • http://guxadisi.pilatesonhudson.com/uploads/1/3/1/3/131379605/mamamejebuw-boxoxivuwerozot-kedaxulew-fikiwuzuzelix.pdfIn PDF document text
    • http://salufojit.krzysztofbobrowicz.com/uploads/1/3/0/7/130739048/mudor-vavuf-lasolarax-wakogigug.pdfIn PDF document text
    • http://jotilufi.powerplus.energy/uploads/1/3/0/7/130776418/bd9a5ebc49.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/4c313611-2996-40e3-a7cf-6c48469e8b76/7802920879.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42d61f99-52a5-4381-8a3b-d1866e901973/dadadevexomemopovup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d373520-3c0b-4c84-b825-e8fdf50baec0/mazizelevepasutubolon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8e20224-6b57-46e9-99f0-6c64bc9b3b61/4016362039.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b36c462b-5078-4923-8f75-a57aca5d971f/84179769335.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F1D 5384 bytes
SHA-256: 2871c3055695df9cbb8776690c7e3d8159378fc7b508385c197c2856a2450cc2
font_01_sfnt_off0000817f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x817F 14592 bytes
SHA-256: abd9369aac7893a692000d1164141d3a72a5534a88c0d203c27327d4e48b6de9
font_02_sfnt_off0000afc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFC6 16120 bytes
SHA-256: 15a68420f1c377824b8c1fd571ac7c30556db1b4bc05006bf44ec3f6c6c83208