Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6b79d8b0a483d8…

MALICIOUS

PDF

56.2 KB Created: 2020-10-18 06:56:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-17
MD5: 047e551815b09aed2af3fbc3a202657b SHA-1: 5cf0a31b437f679aaecc5448c3456f2903ca2be3 SHA-256: 2b6b79d8b0a483d8c0eade51465cabc62bfab7a3a34f94ed45fe5464d521ecfd
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://ttraff.ru/123?keyword=principales+funciones+del+sistema+oseo+pdf In PDF document text
    • https://rudofodirofebas.weebly.com/uploads/1/3/0/7/130739781/4850617.pdfIn PDF document text
    • https://kinojapi.weebly.com/uploads/1/3/2/3/132302846/namawuni.pdfIn PDF document text
    • https://koxoganonigowup.weebly.com/uploads/1/3/1/4/131408343/zifiwimin.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/a63fb.pdfIn PDF document text
    • https://tibiwurab.weebly.com/uploads/1/3/2/6/132695994/mimewofuvos.pdfIn PDF document text
    • https://wivupenoremew.weebly.com/uploads/1/3/0/7/130775018/rexigokom_zurosedowuni_zijozulorilid_bijomu.pdfIn PDF document text
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/c7f721eff6e7.pdfIn PDF document text
    • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/dapakolun.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/e78eeedc-119e-4769-b83f-50c9a6a22ed2/fiweserofevofotejivedaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f69cf800-2750-46c9-87f4-b36742988726/72568934618.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62679b3f-a28c-46c4-86f8-31e6ff80f97f/lean_in_15_turkey_burgers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/353b7697-376b-430a-b3ec-01f14aa1c1ba/14699914514.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cee3bf2-7549-4107-ba13-df5d90545abb/98650918966.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cfb7571-199a-4190-8a2a-28d452b0984f/15701472287.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ce9d0e6-e446-4f7c-86fe-9bf61b6ea467/xowizomuxur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/759b635e-1aab-4ec8-ba78-215fcc7254da/gixabixapuvurifesimata.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a030aac-d373-4ad8-b720-c0af45ca74d7/78416816204.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7bc9f8c-259a-426a-b4e9-b882a9ffee4b/waxofaxafaperumujunujaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14a5e6ea-0ff1-4dea-b064-ed6ea5fc9a15/14433488659.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb7f6afc-9851-49ae-b3c7-b4eeba89186b/wowebete.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ce9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE9 5184 bytes
SHA-256: 32c74d90df4495dd332865b82dabe553ebc3acc54cfd0005af599aacce26dbfd
font_01_sfnt_off00009e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E60 11572 bytes
SHA-256: 6fe04cd82c39896ff5ce2065f45bb775a0bb9031545943445df9ebf1376a4d39
font_02_sfnt_off0000c3b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3B6 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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