Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e74e6046b75f765…

MALICIOUS

PDF

44.6 KB Created: 2020-10-14 18:25:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e2f5019e5ca279eb07dc46bd57519145 SHA-1: 30b8d7d5de768114d5a28e0eb50f2c6323983aa6 SHA-256: 0e74e6046b75f765f4079ed8e597b1193b258f33bf5cf6d90ff21278a7f9a86d
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://ggtraff.ru/pify?keyword=finding+perimeter+of+polygons+worksheets In PDF document text
    • https://jemiwuwavaza.weebly.com/uploads/1/3/0/8/130814288/tigosorivibisakoxu.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/movew.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/ruxozukozuvazu.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/93049f265a0000.pdfIn PDF document text
    • https://site-1039740.mozfiles.com/files/1039740/guwisemubixibuk.pdfIn PDF document text
    • https://site-1040284.mozfiles.com/files/1040284/28265513381.pdfIn PDF document text
    • https://site-1038969.mozfiles.com/files/1038969/7273138198.pdfIn PDF document text
    • https://site-1039251.mozfiles.com/files/1039251/vefotaluwadusasamux.pdfIn PDF document text
    • https://site-1037835.mozfiles.com/files/1037835/8015013098.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366032/normal_5f870bb17a8c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365545/normal_5f870f5d30d1a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366005/normal_5f86f9b4ac96e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365636/normal_5f870d8f196a4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/fff4f43e-7340-490f-a957-ab67a400133e/dufawibufogejodomejewowo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1d612ef-187d-4667-a464-c4eacfd5cdaf/gifugut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/741209f9-4a83-4076-a5f6-f487e01bdc25/pepigedeliriroxut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c08b478-0917-4478-85e1-103b72f88452/vedipenenizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/2091/0233/files/81856065287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4952/8727/files/phet_balancing_chemical_equations_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0491/9574/5446/files/5278328557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2056/5156/files/multimedia_text_set_google_docs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2633e2a3-dec3-444b-ab39-77660358dd52/loxelulibejakegugejanu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8424a5fd-bcb9-4851-a902-90a500f73861/71616582323.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92bbf498-0feb-4ec2-8695-63fdd6b4430a/vawirogudaporuvetolobexew.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_off00006ea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA2 5460 bytes
SHA-256: 276a16f0f31e037bcf857095dd53da86af0e48aa5d5614f5e9413138179e96d0
font_01_sfnt_off00008128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8128 10356 bytes
SHA-256: 5052059eda2e3a2e9cf3d7f22fb173fd17af80432e62d2728308e7d22f798b82

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