Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a06308fef2db79e…

MALICIOUS

PDF

48.8 KB Created: 2020-10-28 21:10:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: eee8798d4bd1f4ad41c8735ab109ac41 SHA-1: a4bbfc40c660cc34220ca66b57ad5cf87e2929d5 SHA-256: 8a06308fef2db79e991a23dd4442ae2a92c1ce7351dcfad97128861956a47b69
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://gettraff.ru/aws?keyword=feelin+so+fly+like+a+g6+meaning In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_5f875be89e6fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374022/normal_5f8e26e5b24ed.pdfIn PDF document text
    • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/wuverobazab.pdfIn PDF document text
    • https://jubunukaf.weebly.com/uploads/1/3/1/4/131483214/8317509.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366029/normal_5f873324321c7.pdfIn PDF document text
    • https://sifurimunudop.weebly.com/uploads/1/3/4/3/134328932/2421254.pdfIn PDF document text
    • https://sopowifumerage.weebly.com/uploads/1/3/4/3/134355846/3907ffa5d6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369930/normal_5f8ff29248d2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384320/normal_5f929ee0d25ec.pdfIn PDF document text
    • https://korodaziso.weebly.com/uploads/1/3/0/7/130740443/c580dc.pdfIn PDF document text
    • https://mizuzakulidux.weebly.com/uploads/1/3/4/4/134471721/monezixuf.pdfIn PDF document text
    • https://tadeganerusoza.weebly.com/uploads/1/3/1/4/131438541/rizuno-metonosag.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/6299623.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off000080fa.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off000080fa.bin)
    • https://uploads.strikinglycdn.com/files/f27442f3-e401-4d45-bcc0-940dab9337ad/xumazuzezobegupun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4526d330-3876-4755-8752-d91260eca3de/radepajuresubug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cddeec6-91fc-474d-8d5f-781d8ba95b6e/35846095765.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/043755dc-bff1-48f5-ae79-de3e7fbb6358/pawefunazukugon.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_01_sfnt_off000080fa.bin)

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005da9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA9 11260 bytes
SHA-256: fda2cc27b91be1aae0c4d570cf8105446b1b3d3e105f78220a8930836d8629c2
font_01_sfnt_off000080fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80FA 5264 bytes
SHA-256: 4b3269a9715f05d5dde40421fc251e5e957ff556bf2586e4ed8f32adef29ebae
font_02_sfnt_off000092ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92ED 10236 bytes
SHA-256: 4f8ee83ad3cd5c87e4f8367639329d982eec280e767282a94701b411c66f7412

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