Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b0a203de82f486e…

MALICIOUS

PDF

48.6 KB Created: 2020-11-09 15:42:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 8a733ea0e2932dadb3e52a7a54939ec7 SHA-1: c180fec70ba6088441abca2df68291996cac96e0 SHA-256: 5b0a203de82f486ebc62c627869f65463682f7e295d1b579712876616f6eb8a4
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://trafficel.ru/123?keyword=ninja+games+unblocked+at+school PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370785/normal_5f882a7bec2cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367632/normal_5f874956e0dfa.pdfIn PDF document text
    • https://rowurasivove.weebly.com/uploads/1/3/4/3/134357219/1c11e50.pdfIn PDF document text
    • https://tuxilumamiwuwuw.weebly.com/uploads/1/3/4/5/134582020/tisuma.pdfIn PDF document text
    • https://wivupenoremew.weebly.com/uploads/1/3/0/7/130775018/vawinubovil-tiwikemubu.pdfIn PDF document text
    • https://tesokumerapaj.weebly.com/uploads/1/3/4/5/134522001/2999491.pdfIn PDF document text
    • https://suzaruluzi.weebly.com/uploads/1/3/4/4/134455671/gixilanibo_janofitelaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391302/normal_5f922643f0507.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450724/normal_5f9f9e5d40c27.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414339/normal_5f94deb05fd18.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://s3.amazonaws.com/nawuvud/vudolojofenejevujage.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8026b7f7-bf4b-4bff-af56-ae1c0088f935/tetalolosemes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/691a4bf0-f349-412e-9698-654e83f44a56/lubewalibazoxosijugavo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fcd187f-f940-4be0-bc66-471828b77344/jet_force_gemini_n64.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005bb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB8 5388 bytes
SHA-256: a69e22782c5e893e9c453411d526c2f34eef294a1dfeddf4a1efcf30b24224de
font_01_sfnt_off00006de0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE0 10584 bytes
SHA-256: ce947814925e26694e89f61e65dacc9d577680a3767c4e546b2a0aebba0bc4c4
font_02_sfnt_off00009239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9239 16092 bytes
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848
font_03_sfnt_off0000a701.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA701 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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