Malicious PDF — malware analysis report

Static analysis result for SHA-256 14cd534651ef7216…

MALICIOUS

PDF

57.0 KB Created: 2020-09-30 03:00:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-17
MD5: 74f25c631c1d601b7af77f0b5fbf1555 SHA-1: 6b43992db29876958a88bd8a3b0993cee9c0e927 SHA-256: 14cd534651ef721605cdb8994d8f0ecd8086cfc9c7719804ed99ec3905b57e81
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://gettraff.ru/strik?keyword=bobby+fischer+60+memorable+games+pdf In PDF document text
    • https://site-1037833.mozfiles.com/files/1037833/xogenoligizorarej.pdfIn PDF document text
    • https://site-1036941.mozfiles.com/files/1036941/15504699017.pdfIn PDF document text
    • https://site-1036946.mozfiles.com/files/1036946/tavanoki.pdfIn PDF document text
    • http://files.studioofcreativity.com/uploads/1/3/1/6/131606502/7860484.pdfIn PDF document text
    • http://files.bharpermd.com/uploads/1/3/1/4/131437079/fewibi.pdfIn PDF document text
    • http://widopa.bolivarcoc.com/uploads/1/3/0/7/130776750/jimirasavutufigoxi.pdfIn PDF document text
    • http://files.sdra.org/uploads/1/3/0/7/130776166/8645756.pdfIn PDF document text
    • http://gunepis.bfaast.com/uploads/1/3/0/8/130813841/zibewogekilixa.pdfIn PDF document text
    • https://site-1036858.mozfiles.com/files/1036858/sopogejoderidumajufukogop.pdfIn PDF document text
    • https://site-1037166.mozfiles.com/files/1037166/fezebolurawirat.pdfIn PDF document text
    • https://site-1036819.mozfiles.com/files/1036819/jonadekivudaxug.pdfIn PDF document text
    • https://site-1036965.mozfiles.com/files/1036965/fivuwatotinadovoz.pdfIn PDF document text
    • https://site-1037024.mozfiles.com/files/1037024/31604114172.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00007eee.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00007eee.bin)
    • 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 extracted file (font_01_sfnt_off00007eee.bin)
    • http://dejavu.sourceforge.netIn extracted file (font_03_sfnt_off0000bc72.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_03_sfnt_off0000bc72.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006abc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ABC 5848 bytes
SHA-256: 580dcf1059aaf23498d27ab0706476c98af7d6c5fd8accab3f26e6bae4b32525
font_01_sfnt_off00007eee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EEE 6156 bytes
SHA-256: 01f360f24cd71254094f967d6587f05334b3c6a1b2eeaacae13840f66b873e68
font_02_sfnt_off000093c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93C0 12064 bytes
SHA-256: 107de118bb9533058ebf7ce45bcbc573e6fd5f2acb23ff6af91c5d3935b6335d
font_03_sfnt_off0000bc72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC72 17852 bytes
SHA-256: f48c0364a3a55b905a961d8065691980e6105853e84ed5281c990b95fc6fca97