Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fa65136d989d269…

MALICIOUS

PDF

40.4 KB Created: 2020-11-08 21:44:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 3facf4567f2ec45a23eba1efd11d73f5 SHA-1: fe3bb2e765ef0da6f4de5691c57ff322e88a71fe SHA-256: 9fa65136d989d269806c0fe4e3bdb9a8df8afe367b2e11f4faebf183b660f722
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=when+is+hytale+beta+release+date PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4372985/normal_5f8f672f3753a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369781/normal_5f8aa66a5465a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409123/normal_5fa68c7873967.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://rizegevoga.files.wordpress.com/2020/11/zelanokiwaxagewe.pdfIn PDF document text
    • https://lovukuk.files.wordpress.com/2020/11/lenfer_cest_les_autres_explica.pdfIn PDF document text
    • https://zetetojowu.files.wordpress.com/2020/11/fewuxurupesesatogaw.pdfIn PDF document text
    • https://vipuvixo.files.wordpress.com/2020/11/xanomuloxasan.pdfIn PDF document text
    • https://nevosaxovib.files.wordpress.com/2020/11/fizimobaruweboratiweti.pdfIn PDF document text
    • https://posipob.files.wordpress.com/2020/11/potagazamoxugexapiresaro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe837db5-a933-4b2d-a3fe-476d9e8d2f3b/gigemenesoduvuw.pdfIn PDF document text
    • https://bebivix.files.wordpress.com/2020/11/silezo.pdfIn PDF document text
    • https://dilopipo.files.wordpress.com/2020/11/demetivudaxakoleze.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000524a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x524A 4844 bytes
SHA-256: 8f262fda3682bcc37d2c03279d661be18f494a0939495f9082c2b5741aa016f7
font_01_sfnt_off000062af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AF 10536 bytes
SHA-256: 70f8b074958ca36deec7cb9cb42da6ee34215c9d80679e2f02936ea762c6f234
font_02_sfnt_off000086dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86DD 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2