Malicious PDF — malware analysis report

Static analysis result for SHA-256 098beb4889e921fb…

MALICIOUS

PDF

74.2 KB Created: 2021-03-01 20:50:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 3d86d15913c5c13e8f16b10f56da6b53 SHA-1: 2294b23449615b85ec0178d2516565b882ee80cc SHA-256: 098beb4889e921fb0f1bb5ee0721684131a5965fd50d53e2c4efef5f480b4f22
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/award?keyword=kill+team+core+game PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4500878/normal_602f9d194abe3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483388/normal_5ff0c10270d79.pdfIn PDF document text
    • http://confirmationhelpcenter.com/john_walvoord1gtak.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478688/normal_5ff39baeea07a.pdfIn PDF document text
    • http://iglivesupportteam.com/what_is_the_meaning_of_pe_in_whirlpool_washing_machineqbytt.pdfIn PDF document text
    • http://kivabixedopat.22web.org/xikobel.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393026/normal_5fcd99db781e1.pdfIn PDF document text
    • http://pribor-poverka.site/siwuk7v6hn.pdfIn PDF document text
    • http://wildber.store/181949970837as87.pdfIn PDF document text
    • http://fixmarker.fun/wordperfect_avery_templatesdoaeq.pdfIn PDF document text
    • http://begemotiks.fun/full_marks_guide_class_8_sanskritvst2u.pdfIn PDF document text
    • http://eslivdrug.space/lopavokuriminiminakerukip8ocfw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://segidamilezuv.epizy.com/electron_positron_annihilation.pdfIn PDF document text
    • http://wepinipinalojud.epizy.com/97071685701.pdfIn PDF document text
    • http://lufeneweb.epizy.com/dutufitegowajuku.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_off0000e93b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE93B 4912 bytes
SHA-256: 19fb20ecd587885fa04a0ebe1e9c43369ecf0129afc432f51e4c8a48ec3dff47
font_01_sfnt_off0000f9de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9DE 10104 bytes
SHA-256: 76f1578fa015e25c55f695bec6b995b6fcd8ac61bab98b0dc4e1053f61bf3ad8