Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e55696cf26f62e4…

MALICIOUS

PDF

73.0 KB Created: 2021-02-16 17:22:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 89530ce3fca3561899a3c4904d00d03d SHA-1: 8c62bf024a434154499bf14ed64ad905c74a07f0 SHA-256: 5e55696cf26f62e40347783aff64850b2c896d655bcb822127d76ee95cc9bfac
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://baarspo.ru/wix?keyword=endocrine+matching+worksheet+answers PDF link annotation
    • https://cdn.sqhk.co/tumowara/icrKA03/nba_2k20_pc_download_game.pdfIn PDF document text
    • https://wirimodarezekas.weebly.com/uploads/1/3/5/3/135314182/ponon-xuvuguferubo-relulomenife-wagerader.pdfIn PDF document text
    • https://wunepilupizuxo.weebly.com/uploads/1/3/1/8/131857535/vokipujon.pdfIn PDF document text
    • https://cdn.sqhk.co/rorajakura/ghThhfw/careers_for_management_information_systems_majors.pdfIn PDF document text
    • https://tuxewuwa.weebly.com/uploads/1/3/4/7/134776055/gisofuraduka.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372673/normal_5fd805a3dfe91.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448332/normal_6016eddb5510e.pdfIn PDF document text
    • http://zelaxukixut.iblogger.org/rumil.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458137/normal_600929cf7149c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402944/normal_5ff9fdaac6970.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382960/normal_5feb7dbd0c236.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486363/normal_5fe63ad99a9c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453338/normal_602ae96d188f9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490377/normal_5fff4d4ddaa4f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425924/normal_60168d2e1d3ed.pdfIn PDF document text
    • https://cdn.sqhk.co/baresupujar/BBnkHhc/82151337482.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379229/normal_5ff27d84c4336.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://punolubumima.epizy.com/67827286419.pdfIn PDF document text
    • http://sivigowukom.epizy.com/malachite_green_solution_safety_data_sheet.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_off0000e206.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE206 5436 bytes
SHA-256: e801264fed46751a2591c3b1ca90d51d57fe5b62aa04f411210a3e9ea11a31e0
font_01_sfnt_off0000f469.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF469 9940 bytes
SHA-256: a6fdf35165f1f0f9c1cf1e5593d503b51d6bf65a1c0d6882561a93e6d6ab6ca4