Malicious PDF — malware analysis report

Static analysis result for SHA-256 051757cd77f7eac1…

MALICIOUS

PDF

66.4 KB Created: 2020-10-17 01:58:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 717f0d257582b1a9ee19a2c44b0414e8 SHA-1: 62f6921f32f994bb1a18fe5a16bb00cac34eecec SHA-256: 051757cd77f7eac11effcce7b3f491a22ddd68a133be75e24b07d532e2306db0
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.link/123?keyword=aimee+meredith+cox+shapeshifters+pdf In PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/6497588.pdfIn PDF document text
    • https://zisokilusativ.weebly.com/uploads/1/3/2/3/132303079/vunogewamedozen.pdfIn PDF document text
    • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/wonarelusawi_pinowixixon_naradoranulixut_roludi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370791/normal_5f8a18da41e7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370529/normal_5f8a102268e12.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369935/normal_5f8a1a933780f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369304/normal_5f8a0f0f772eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365627/normal_5f883ee800656.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366351/normal_5f87e10eb480d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370740/normal_5f884f9c77086.pdfIn PDF document text
    • https://fupexorugukemig.weebly.com/uploads/1/3/0/8/130814763/xelafale.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/3532345.pdfIn PDF document text
    • https://zuxuzesis.weebly.com/uploads/1/3/1/4/131438019/8640575.pdfIn PDF document text
    • https://tudupumodowi.weebly.com/uploads/1/3/1/4/131406798/4281276.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/1/0429/2991/4012/files/fundamentals_of_momentum_heat_and_mass_transfer_6th_edition_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/6093/1991/files/the_selection_kiera_cass.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/2363/2037/files/75225944977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/8225/2957/files/97744715476.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_off0000c570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC570 5420 bytes
SHA-256: ecfa1528f5a6537fe8251b391088c02fd6cc6d1116c7ebc0a301963133feb433
font_01_sfnt_off0000d7b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7B7 10748 bytes
SHA-256: 77600ddcaa19a87e6739caf7f03e7e0528b5c754fa97f43d34d49f947587d9b7

Open this report in the interactive analyzer, or submit your own file for analysis.