Malicious PDF — malware analysis report

Static analysis result for SHA-256 018aed7a082869b3…

MALICIOUS

PDF

64.9 KB Created: 2020-11-04 06:43:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-08
MD5: e8c5708b5b1074ed4813c6c199037ebc SHA-1: 530a1d5db152f6067323bbf25dea0b1d083e4a4f SHA-256: 018aed7a082869b38a3548adb3305cc61a41de77e5e8ddd3cff2506a70fbc418
194 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/wb?keyword=dragonslayer%201981%20cast In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365612/normal_5f971225197c6.pdfIn PDF document text
    • https://ruparowix.weebly.com/uploads/1/3/4/3/134350000/nipejojudixoret.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/mezokutugijuzawew.pdfIn PDF document text
    • https://vafumavuforowa.weebly.com/uploads/1/3/4/4/134489815/439b316f.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/celsius_to_fahrenheit_worksheet.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/kasodopizafazakoxuk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380883/normal_5f91240ecc114.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409826/normal_5f934f0ceb1c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380540/normal_5f9668ffad0d1.pdfIn PDF document text
    • https://simisasokudu.weebly.com/uploads/1/3/4/2/134235492/vixumodowojoti.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387924/normal_5f915942d4d81.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000b9e4.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000b9e4.bin)
    • https://uploads.strikinglycdn.com/files/a9cd5a44-4ae8-4997-9cb1-219d9e07b35e/70373735196.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 extracted file (font_00_sfnt_off0000b9e4.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b9e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9E4 5472 bytes
SHA-256: 1b0cbc7d925ee739ac2986753e5dbac5a419607f4612e120d0dc11bf655dbd34
font_01_sfnt_off0000cc9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC9E 12664 bytes
SHA-256: 47d5395d9e294a78a7a64d9ea52bc3eb40a54e1d9fe1029210252eac4bc84c9f