Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d0d3b0242acb33…

MALICIOUS

PDF

39.8 KB Created: 2020-10-07 18:23:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-06
MD5: 7ea46f19f52c2ee64b9c7e25480db0ad SHA-1: 0a0927d9f220a4f121c3a811eb0bfc13ae99cf41 SHA-256: b5d0d3b0242acb33a07357edc50134ddafc539ff943db753f3a1956fa4de289e
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://gettraff.ru/strik?keyword=a+pocket+guide+to+writing+history+9th+edition In PDF document text
    • https://site-1040780.mozfiles.com/files/1040780/27871739482.pdfIn PDF document text
    • https://site-1038969.mozfiles.com/files/1038969/roxawegar.pdfIn PDF document text
    • https://site-1037899.mozfiles.com/files/1037899/93023228598.pdfIn PDF document text
    • https://site-1038553.mozfiles.com/files/1038553/zikumisijapujawotokunug.pdfIn PDF document text
    • http://files.vikisimpson.com/uploads/1/3/0/7/130775851/niwonogoregifu_jelupivudesinin_piromof_seguvok.pdfIn PDF document text
    • http://files.thepinkhairbox.com/uploads/1/3/0/8/130813511/2032074.pdfIn PDF document text
    • http://xatoxi.japanstudies.org/uploads/1/3/1/3/131397970/8024553.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005d07.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005d07.bin)
    • https://uploads.strikinglycdn.com/files/78909ad9-8dfc-4392-9a20-1eed4b01ba20/zomemalow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34053e4f-a3ad-4da1-8ed0-24389eedc498/77743769616.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b31c451-b2b2-4370-b914-a6adcf58bb4f/96224984815.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82835c75-4fd5-4834-8929-e93161bfbbb4/josumowunetakaxoluj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d31a656-0561-4c5a-ae12-be0ea6e1a80b/favagetifow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0793/4103/files/paserajafitapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0615/6190/files/current_event_worksheet_7th_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5559/6198/files/words_starting_with_zu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/5541/8021/files/zevamusepamoguloz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2853/6744/files/12163789107.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_off00005d07.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D07 5496 bytes
SHA-256: a319833f8af342df8b5309e43505170a8a16fef8d8a2446e0ec68e87ee244820
font_01_sfnt_off00006fd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD9 10024 bytes
SHA-256: 349bfdd42934ed377687aa68a23e213a28cb80e95762e1af46d62d85f93ad0ff