Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9922ad619762f67…

MALICIOUS

PDF

45.0 KB Created: 2020-10-31 23:52:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-13
MD5: 4d25de9e7edf264015ebca587423e023 SHA-1: 861db409526c40f20795e511c3869aa1af969a24 SHA-256: f9922ad619762f6719046b5b2b574833c752f029e098f5cc17bff0bd52d7eaa9
134 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.
  • 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://gettraff.ru/wb?keyword=ultimate%20bestiary%20revenge%20of%20the%20horde%20pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365540/normal_5f881b7392c4f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385028/normal_5f8d359290185.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/kadupe_ripovu_jozovagazemewe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380707/normal_5f91ec72ce812.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384299/normal_5f8c853fe6e56.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366308/normal_5f8e29d8778e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368224/normal_5f89af647b168.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8403/1174/files/murray_snow_king_snowblower_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2207/2480/files/tunudebafuzozetos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8681/4109/files/97442681937.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/katalog_kabel_kmi.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/39445730679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/0351/7375/files/android_mobile_data_settings_intent.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_off00006f55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F55 5748 bytes
SHA-256: 2bd0c5b30eac3f9e940c5134d78ce55ac36e9d852ec2ffb01e40f94cff1810b1
font_01_sfnt_off000082c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C0 10796 bytes
SHA-256: a70efe55fb55dcf4d74ada89742c630af2bb01058525f8a1fdf2d0d824843e40