Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8d9c7e08cb6034…

MALICIOUS

PDF

45.7 KB Created: 2020-09-30 20:43:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: b3d1399ba3e056e16a1f9446bf26bd5e SHA-1: 899d1d093a1f245c7dbf84e3bc208dc8267e8c8e SHA-256: 5d8d9c7e08cb603468488e8f215f40b6de95275bbfc397eb7dc1cb3e9efcee66
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=broiler+production+in+botswana+pdf In PDF document text
    • https://site-1037867.mozfiles.com/files/1037867/39174646025.pdfIn PDF document text
    • https://site-1036639.mozfiles.com/files/1036639/savafugepu.pdfIn PDF document text
    • https://site-1037233.mozfiles.com/files/1037233/86651134819.pdfIn PDF document text
    • https://site-1037044.mozfiles.com/files/1037044/14321514777.pdfIn PDF document text
    • https://site-1036969.mozfiles.com/files/1036969/liduto.pdfIn PDF document text
    • http://jotoxar.pcowley.com/uploads/1/3/1/4/131406149/6021444.pdfIn PDF document text
    • http://files.fulviodalfarra.com/uploads/1/3/0/8/130874530/kuletemesujut.pdfIn PDF document text
    • http://kujutim.dentistryvistaca.com/uploads/1/3/2/3/132303189/5280797.pdfIn PDF document text
    • http://files.rtsbowlingstore.com/uploads/1/3/1/4/131453274/4618162.pdfIn PDF document text
    • http://sigofe.neasaa.org/uploads/1/3/1/1/131164312/tajukisobijiziperor.pdfIn PDF document text
    • http://files.oaxacamezcaltours.com/uploads/1/3/1/8/131856543/46762c58bc2.pdfIn PDF document text
    • http://files.chadarnow.com/uploads/1/3/0/9/130969403/447d2bff7ca0.pdfIn PDF document text
    • https://site-1036692.mozfiles.com/files/1036692/65725163295.pdfIn PDF document text
    • https://site-1036996.mozfiles.com/files/1036996/ropovowilawizitun.pdfIn PDF document text
    • https://site-1037037.mozfiles.com/files/1037037/nelexok.pdfIn PDF document text
    • https://site-1036698.mozfiles.com/files/1036698/rajisigaxolalegejazesa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00007431.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7431 5432 bytes
SHA-256: ae7362fe25dfcf0885c363e55811ebaf1619e2b86b8af00d36dd78f015324963
font_01_sfnt_off000086c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C5 10240 bytes
SHA-256: 1bc72dee63b4046ec1626876d7ba3eb4588580b0760f3f6bcbf8e3b31557ed09

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