Malicious PDF — malware analysis report

Static analysis result for SHA-256 bade731a1e4faa67…

MALICIOUS

PDF

39.9 KB Created: 2020-11-07 20:12:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 9ec5083f115280671476ccaa16914061 SHA-1: 3bca3e8a71f9db448c995e17b53df6a78e39c2f5 SHA-256: bade731a1e4faa676e3e53164049247ac72ba638cd49fc1c9453c58aa2614bec
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://traffset.ru/123?keyword=age+of+defense+4 PDF link annotation
    • https://jaserasozupog.weebly.com/uploads/1/3/1/4/131454215/lolazawake.pdfIn PDF document text
    • https://falerelijiwega.weebly.com/uploads/1/3/4/6/134612416/mevonodi-xisugiwop-galesujuzelomum-gogiku.pdfIn PDF document text
    • https://dojulukasinu.weebly.com/uploads/1/3/0/7/130776790/livefoze.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444874/normal_5f9fb0cabc137.pdfIn PDF document text
    • https://rirusiwox.weebly.com/uploads/1/3/4/2/134265342/mepapexemam-pewiwi.pdfIn PDF document text
    • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/xufewudetadopaw-luvel-weweweravuzi-gifagim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448346/normal_5f9eca3ec78c9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/79fee2bb-c775-4ea2-9f17-60035531c1b6/16258049131.pdfIn PDF document text
    • https://viwatisoj.files.wordpress.com/2020/11/sample_answers_to_performance_appraisal_questions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c2534bd-27e6-4991-8241-f3531469e3ec/67896109807.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_off00006008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6008 4812 bytes
SHA-256: c5b6e95187ba3e34b113b78de9e3cdded2bc3e0c30dfe075d36346bbf20e104f
font_01_sfnt_off0000708e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x708E 10368 bytes
SHA-256: 38b4dbfe1874317ba3ae469ebcdb45dabd8695e53331361ccf4041a5e5d707b7

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