Malicious PDF — malware analysis report

Static analysis result for SHA-256 64f9318a36b5caf2…

MALICIOUS

PDF

37.2 KB Created: 2020-10-29 13:00:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 66c76d151ad7c84992ef4112b408b724 SHA-1: 9111f65178f80cbf61b2152b3e8450a64b08cf0f SHA-256: 64f9318a36b5caf29e762ada2ad70d2333b99e88ff1c12c06d2f7029906eeaa7
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.cc/123?keyword=coffin+meme+song+roblox+id In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366661/normal_5f873ec4d8462.pdfIn PDF document text
    • https://xubuvene.weebly.com/uploads/1/3/1/3/131380433/gapokaduxada-pubiba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372735/normal_5f910b5b92d81.pdfIn PDF document text
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/bipip.pdfIn PDF document text
    • https://jesasifewom.weebly.com/uploads/1/3/1/4/131453969/219df.pdfIn PDF document text
    • https://mixorone.weebly.com/uploads/1/3/1/4/131438240/winetonaxiwowav.pdfIn PDF document text
    • https://lugagixoweliw.weebly.com/uploads/1/3/4/2/134234548/katarezetuf_fovexijupo_retopikan_datigorage.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383703/normal_5f976d5f381ed.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/1/0486/5002/7176/files/67726653502.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e743b60-4205-4e19-abf6-2aa0cfc9ecf5/lavetumovaxabapixokovapu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06f293b6-4d53-4623-8312-1bfc578c3391/97984245342.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6d30109-1a12-4614-8d59-232b462645c1/16045567168.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d19ff3d-321a-48f1-97b0-928c99059e4e/vasowijuwefutogowavewer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b90faa2-02d1-40be-89b6-b97a5fe09d2c/39170266960.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42dd42db-a85a-4a4a-a705-60c146082cb5/72433998977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7007/0687/files/28091512628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/3991/4646/files/pegatron_m2n78-la_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/075d9532-c705-4f98-a911-0741e003a234/gavididuvofiwanip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6439f8c2-490f-4d02-8790-2281c446440d/68310102875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/4602/6407/files/dveloppement_dapplications_web_html5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3439b1a-19b5-446e-9bc0-f6ec2c5d1325/afcore.dll_arcgis_10.5_erreur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1527/4147/files/jigul.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_off00005615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5615 5132 bytes
SHA-256: 70c8a8616a481cf589c0e1e7d03259d455d360a9363c5ca1d4834c0eefb12ab1
font_01_sfnt_off00006776.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6776 9312 bytes
SHA-256: 215635fd532b15f723821c8a2d4bcada1fcbd0a256f7e8d4c1b3f848181702e4

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