Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f93859cc20ae8db…

MALICIOUS

PDF

72.4 KB Created: 2021-02-26 01:49:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5e66aa9ea8d3b78d6dd966b4f850d4ed SHA-1: 196d7cbe65a274072cb7cd7799ca0ead5a919ae7 SHA-256: 5f93859cc20ae8db6e69ea284d5f98cdaa5e243734b25eb2584bb637be1698a4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jottigo.ru/123?utm_term=how+to+program+dish+remote+6.4+to+receiver PDF link annotation
    • https://cdn.sqhk.co/sofizagumup/ankZaAD/dovegenagu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465136/normal_602b89fbf3dc1.pdfIn PDF document text
    • http://bunnygummy.ru/75895334126opg1h.pdfIn PDF document text
    • http://pristav.pro/kofegex510z7.pdfIn PDF document text
    • http://tibagisuminove.sportsontheweb.net/how_to_shift_realities_while_awake.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485930/normal_5ff0ec5778e83.pdfIn PDF document text
    • http://damita.fun/how_much_does_a_lenovo_cost2aa2j.pdfIn PDF document text
    • http://nakekizedexu.getenjoyment.net/dezuwapijuzena.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447630/normal_5fcb20a623c21.pdfIn PDF document text
    • https://cdn.sqhk.co/kukisigafumi/SYVzibE/66691644883.pdfIn PDF document text
    • http://xojuxelase.medianewsonline.com/sony_icfc1pj.cek_clock_radio_with_time_projector.pdfIn PDF document text
    • http://figimumagoko.mygamesonline.org/14715731013.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://revulagolorer.epizy.com/lanusunisunaxikiduvekesar.pdfIn PDF document text
    • http://sisizovomejefi.epizy.com/bedupofulaku.pdfIn PDF document text
    • http://vepilezora.epizy.com/file_chooser_example_in_android.pdfIn PDF document text
    • http://depuniwawugupi.epizy.com/fekijegi.pdfIn PDF document text
    • http://zevofelajasuz.epizy.com/83805540607.pdfIn PDF document text
    • http://nemunuj.rf.gd/action_plan_template_education.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_off0000ddd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDD3 5844 bytes
SHA-256: 189c412071fbca0bf83089521bd878e68cefec23411512f62ef05c63c76d5b51
font_01_sfnt_off0000f1b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1B2 10108 bytes
SHA-256: 3528474e6ed977c3ddf4c9a373018003adc176b8a7fe383dd89aac9c44b38190