Malicious PDF — malware analysis report

Static analysis result for SHA-256 45005e5714ce0e54…

MALICIOUS

PDF

43.3 KB Created: 2020-10-10 07:52:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-25
MD5: a313a7b94e141cc87aaf3ca884844f57 SHA-1: a63c150a1ca7a919f817dd4aca084ef1b785d523 SHA-256: 45005e5714ce0e54aa1eba9f7abb6cd925fb4febcfd721fb2670dd456146bdfd
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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=haynes+manual+pdf+free+download In PDF document text
    • http://files.littlecoveliving.net/uploads/1/3/1/4/131437299/nokagitodegifex.pdfIn PDF document text
    • http://files.paintedlotusyoga.com/uploads/1/3/0/7/130740530/6992899.pdfIn PDF document text
    • http://jikijeleb.gohillab.com/uploads/1/3/1/4/131407045/8631559.pdfIn PDF document text
    • https://site-1038522.mozfiles.com/files/1038522/35253220732.pdfIn PDF document text
    • https://site-1036829.mozfiles.com/files/1036829/2005731890.pdfIn PDF document text
    • https://site-1043576.mozfiles.com/files/1043576/91612292943.pdfIn PDF document text
    • https://site-1036867.mozfiles.com/files/1036867/99454429091.pdfIn PDF document text
    • https://site-1041600.mozfiles.com/files/1041600/biragi.pdfIn PDF document text
    • https://site-1038416.mozfiles.com/files/1038416/gololamubuki.pdfIn PDF document text
    • https://site-1038738.mozfiles.com/files/1038738/tarunodesaforip.pdfIn PDF document text
    • https://site-1040785.mozfiles.com/files/1040785/87645470442.pdfIn PDF document text
    • https://site-1042834.mozfiles.com/files/1042834/91408867475.pdfIn PDF document text
    • https://site-1039886.mozfiles.com/files/1039886/18551393297.pdfIn PDF document text
    • https://site-1036764.mozfiles.com/files/1036764/vosisuwijikuniti.pdfIn PDF document text
    • https://site-1036628.mozfiles.com/files/1036628/46924124016.pdfIn PDF document text
    • https://site-1038561.mozfiles.com/files/1038561/kajozije.pdfIn PDF document text
    • https://site-1037192.mozfiles.com/files/1037192/4021587778.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000067d6.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000067d6.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_00_sfnt_off000067d6.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67D6 5344 bytes
SHA-256: afebdd42d742d8b840d427b3cc665e876e607fc77901ac3d1b9b462b2c288c2c
font_01_sfnt_off00007a02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A02 11392 bytes
SHA-256: d9382d6786e892e6f189bdb5a6bb6477674a84c70cd44a6519f209f9db091669