Malicious PDF — malware analysis report

Static analysis result for SHA-256 c69f8544122849f6…

MALICIOUS

PDF

36.2 KB Created: 2020-11-08 02:47:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: f9fdbb239555116d15ef101789d7a727 SHA-1: 4f567896148fbfc21e8dcba443d6d4d9f15473be SHA-256: c69f8544122849f6bda07cca0464724a554c0f9e2b90039bf63c4c4a3ee6682b
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://trafftec.ru/aws?keyword=phet+pendulum+lab+worksheet+answers PDF link annotation
    • https://kuxilididid.weebly.com/uploads/1/3/4/3/134387830/2711bfcad1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386333/normal_5f9267a76a251.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379851/normal_5f9b3343a9a9d.pdfIn PDF document text
    • https://xawiwewediwo.weebly.com/uploads/1/3/4/0/134017039/3061972.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/jatelu-zukolugaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377902/normal_5f8d3a87f24cc.pdfIn PDF document text
    • https://warakamaluxib.weebly.com/uploads/1/3/4/3/134378328/lovatujafuwes_pibisewoketa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390366/normal_5f9c6bde2c7f1.pdfIn PDF document text
    • https://sulidisige.weebly.com/uploads/1/3/4/3/134318683/8926883.pdfIn PDF document text
    • https://purusoze.weebly.com/uploads/1/3/4/4/134495244/3279488.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/de427eb7-4609-47b5-9758-dbf6c9eabfad/76630560912.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0775495-9b78-4d81-ae0c-c3be5f8b2a8b/8917133419.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/52338914590.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_off00004eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EEB 5496 bytes
SHA-256: f3941e970c27bee6709848db13269e9d9f022f8dc9ab615b86c5a936c522ab27
font_01_sfnt_off00006172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6172 10008 bytes
SHA-256: 5220e43e0cb2d3978d1c674779179d3ef33485bb71f14edce7898c051265f3fc