Malicious PDF — malware analysis report

Static analysis result for SHA-256 7823ba79c1618238…

MALICIOUS

PDF

43.5 KB Created: 2020-11-01 12:58:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 728070f1d71a6fa7a9bad8568620d478 SHA-1: 8c49a3df980929ef9e534fb04a959a4df0fdf192 SHA-256: 7823ba79c161823829f50eb3255833cc62704479242ee8b93f07e1c8e60ca2d9
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://gettraff.ru/strik?keyword=pokemon+tower+defense+2+hacked+game In PDF document text
    • https://siregudak.weebly.com/uploads/1/3/0/7/130738759/8683090.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404520/normal_5f9848ca9a37d.pdfIn PDF document text
    • https://kuzaloxamuw.weebly.com/uploads/1/3/1/4/131406684/4994816.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383568/normal_5f93520f66605.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/7989682.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368977/normal_5f8c8c1696e34.pdfIn PDF document text
    • https://bubixoduxufito.weebly.com/uploads/1/3/1/0/131070588/187a3774ea6.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/1/0484/5466/4342/files/42294090309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0508/6360/files/critical_role_campaign_2_resurrection_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/5474/1672/files/epilog_laser_fusion_m2_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/3014/9821/files/16859172551.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_off00006633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6633 5692 bytes
SHA-256: 1283fd127744f79d5c622cc17407e6724ba44091e458c5f97431098471be12ca
font_01_sfnt_off00007986.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7986 11588 bytes
SHA-256: bf25a3bdbc725a9ec673a2b5fbd3a789d19f7d0f3faa5f2a0b763e940b82008d