Malicious PDF — malware analysis report

Static analysis result for SHA-256 1912d60bea635418…

MALICIOUS

PDF

42.8 KB Created: 2020-10-09 19:28:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 97352e780669720c897f2c7c2126b4fe SHA-1: 46c2c31d66320cdcfeeb22bf9c65206f93ced5a9 SHA-256: 1912d60bea635418d4a03a45e73168f10983ae543e6f09f4eb1988ec70fce08f
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=find+the+thalmor+assassin In PDF document text
    • https://site-1036951.mozfiles.com/files/1036951/kikimikexezumaruxex.pdfIn PDF document text
    • https://site-1044518.mozfiles.com/files/1044518/faxiganunidepemod.pdfIn PDF document text
    • https://site-1038849.mozfiles.com/files/1038849/wupinatowijuvimalepi.pdfIn PDF document text
    • https://site-1037079.mozfiles.com/files/1037079/netefipaduxivimu.pdfIn PDF document text
    • https://site-1037207.mozfiles.com/files/1037207/takadabojinudupima.pdfIn PDF document text
    • https://site-1039564.mozfiles.com/files/1039564/palenefarekumopatunaxen.pdfIn PDF document text
    • https://site-1039789.mozfiles.com/files/1039789/27371842320.pdfIn PDF document text
    • https://site-1038653.mozfiles.com/files/1038653/591617347.pdfIn PDF document text
    • https://site-1036722.mozfiles.com/files/1036722/defimapep.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/7e84105f-e1dc-46c8-a4bc-7d6119424790/digaxagupafiwa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0eb837cd-5fdc-47f2-a8b4-52f6eff52c1d/kefipu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19894c67-c3fa-4361-8ee9-117a2e334906/winefurokuruloposewibubuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b596387-89b8-4048-a14e-8261832b18f9/23480344470.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/4781/1744/files/261957284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/3301/2635/files/87114620514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/0079/1715/files/gijonexixe.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_off00006957.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6957 5020 bytes
SHA-256: 419f4737c6a096dff3c343e6ace3b1205752dc53f806722c9512391dfd9c4753
font_01_sfnt_off00007a38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A38 10552 bytes
SHA-256: 43e3482b046dc19a511026ab7ee5c331cd7db0c6ea55578be135874f993c1843