Malicious PDF — malware analysis report

Static analysis result for SHA-256 9191e66243cde9f5…

MALICIOUS

PDF

43.8 KB Created: 2020-11-07 17:43:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 957f6b2697a6e3aa0acd2cae7daff7f6 SHA-1: d43eebd1294638a8eedee155fea11fbc8e7955d3 SHA-256: 9191e66243cde9f5fa36ce1e16f5cf240ec54fca94d926a60e63eba9e7fc624c
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://trafffi.ru/aws?keyword=robert+gonzalez+cpd PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4371814/normal_5f8d42e9aa26b.pdfIn PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/4f7ab62d8ac5f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369781/normal_5f98f2c2a5bcf.pdfIn PDF document text
    • https://jabiratunibi.weebly.com/uploads/1/3/2/6/132683422/2b2448b5ee1adc.pdfIn PDF document text
    • https://zoveponezewuda.weebly.com/uploads/1/3/0/7/130738822/1995488.pdfIn PDF document text
    • https://goduvozimaku.weebly.com/uploads/1/3/1/3/131380582/puzezowapijewaduk.pdfIn PDF document text
    • https://sumijiluwovoj.weebly.com/uploads/1/3/4/2/134266387/sepeleniti_mokixeparov_wiresose_wefanezugusolab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412896/normal_5f9ee6f91a393.pdfIn PDF document text
    • https://koxoganonigowup.weebly.com/uploads/1/3/1/4/131408343/1db8add63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365660/normal_5f872c1504232.pdfIn PDF document text
    • https://pedutiwoda.weebly.com/uploads/1/3/4/4/134481784/6e6857f064.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/a48f88c6-080c-4c49-bd10-f473f451b557/gerunds_and_infinitives_games_esl.pdfIn PDF document text
    • https://fidunonip.files.wordpress.com/2020/11/madelizopididam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/adea6e7c-704f-43c1-a0b3-167765a23f25/ridogelufajeku.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_off00006b2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2A 5260 bytes
SHA-256: 2bd6f6785c0c344b3e9a2ebfa391dedf8d2770eb4ff8dccf2ceca5c8cb0b988a
font_01_sfnt_off00007d22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D22 11076 bytes
SHA-256: 0a82710d5f1efb189ade218881f996be19d880287dbb9e61499d0c5efcefcb62