Malicious PDF — malware analysis report

Static analysis result for SHA-256 59ffd7e1b4678ccd…

MALICIOUS

PDF

66.2 KB Created: 2020-12-18 11:40:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 6f8b0a58cf4f84df1852b504f74b315e SHA-1: ac5e7b2516908c6f0a9579b2ce12420f84a2f0b8 SHA-256: 59ffd7e1b4678ccd00626582600f80f29166daaca94c0c77abebf4309ab795e7
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffnew.ru/aws?utm_term=beps+action+plan+13+final+report+pdf PDF link annotation
    • https://wubenigulusetib.weebly.com/uploads/1/3/4/7/134712949/9781087.pdfIn PDF document text
    • https://wusunipusu.weebly.com/uploads/1/3/4/3/134320006/4d229eef6cd5.pdfIn PDF document text
    • https://kudoxere.weebly.com/uploads/1/3/4/5/134591480/8199079.pdfIn PDF document text
    • https://bisaderivulele.weebly.com/uploads/1/3/4/7/134744485/8839919.pdfIn PDF document text
    • https://guditeni.weebly.com/uploads/1/3/4/5/134529862/kisojemonuxotaka.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/10610.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421336/normal_5fdbd497e9adf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417426/normal_5fa6ce3638d1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418383/normal_5fa51259bb04c.pdfIn PDF document text
    • https://galofufe.weebly.com/uploads/1/3/1/3/131384583/664791.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369516/normal_5f8ac886ba620.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc553872e537a05ef266587/t/5fcc772a8a55f2188b7019cf/1607235371428/raspberry_jalapeno_jam_recipe_with_pectin.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd131b4b66d17947f75a3f/1606226715662/used_harley_davidson_sidecar_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/fitbit_inspire_hr_svensk_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ea1fa8793968640865e0/t/5fc104bcf8cdb769c606f442/1606485181538/madison_wi_streets.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_off0000c6ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6EA 5416 bytes
SHA-256: b84eb0faf53cefe1c8fbaaae6e4690421cfcfce5f112cbffd92face22b292808
font_01_sfnt_off0000d96c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD96C 10188 bytes
SHA-256: 8651183e94056991a5a9ee9f932b0517417413d6c817a6456f1b73f834ef9e4b

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