Malicious PDF — malware analysis report

Static analysis result for SHA-256 59c7cce4941c1ae2…

MALICIOUS

PDF

63.2 KB Created: 2020-10-28 11:55:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: d2c34c402585ca6ae12fc3d6bcbd8cb2 SHA-1: 558b5b3124368464ffcd21754e880a42573bdc5b SHA-256: 59c7cce4941c1ae2ca434e9c8ecc1514ff68183a436be7b178b29db6a0dda03c
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://cctraff.ru/aws?keyword=bleacher+report+bears+offseason In PDF document text
    • https://tugajepefur.weebly.com/uploads/1/3/1/4/131453805/rotumugakefo.pdfIn PDF document text
    • https://tenikekiso.weebly.com/uploads/1/3/0/7/130775729/d83a29a8.pdfIn PDF document text
    • https://wosowabo.weebly.com/uploads/1/3/4/3/134340570/13c37844225a.pdfIn PDF document text
    • https://tabuxeniki.weebly.com/uploads/1/3/2/6/132682737/19eec4a96b4583d.pdfIn PDF document text
    • https://pudukodup.weebly.com/uploads/1/3/1/4/131407572/xupowiradik_siraxelosekom_lafuwupov_tijazixalasifus.pdfIn PDF document text
    • https://vujuzujotug.weebly.com/uploads/1/3/4/4/134478410/9aed630.pdfIn PDF document text
    • https://gomemetunugup.weebly.com/uploads/1/3/2/7/132712315/0efcee8cc6dc2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366050/normal_5f8f6668b99f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373281/normal_5f8dc436962ec.pdfIn PDF document text
    • https://tegugozitofo.weebly.com/uploads/1/3/0/8/130874592/lodozivowakazekesal.pdfIn PDF document text
    • https://wegotutitupal.weebly.com/uploads/1/3/1/4/131453182/4997439.pdfIn PDF document text
    • https://dowikonusinewe.weebly.com/uploads/1/3/4/3/134374018/f668a878b22.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365555/normal_5f8ad4d3de342.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366623/normal_5f896e352f6ce.pdfIn PDF document text
    • https://zoveponezewuda.weebly.com/uploads/1/3/0/7/130738822/014ef8188b7c356.pdfIn PDF document text
    • https://bekonerotukabi.weebly.com/uploads/1/3/4/3/134366377/4328324.pdfIn PDF document text
    • https://putigazabikikim.weebly.com/uploads/1/3/2/6/132682718/xodibebovakafe-fosurapifibuna-xewaf-vilujetugowuva.pdfIn PDF document text
    • https://jawanowek.weebly.com/uploads/1/3/4/3/134356941/88e3b65.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000b8df.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000b8df.bin)
    • https://cdn.shopify.com/s/files/1/0484/0040/0544/files/28259670491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/0360/7703/files/simple_present_basic_exercises.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_off0000b8df.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b8df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8DF 5292 bytes
SHA-256: 44691f951fafce5b3c56c85d51b474bd053e5792a66411c5d0c36709592a88d3
font_01_sfnt_off0000cad3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAD3 10864 bytes
SHA-256: 679eb481a41ab4efb86842e8f07b077804c2f6fc9bac297b0bad763d47bd0606

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