Malicious PDF — malware analysis report

Static analysis result for SHA-256 86d14f29a125fe4f…

MALICIOUS

PDF

73.3 KB Created: 2021-01-25 18:56:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 61fb05d0f2ac4ad8dcdd2a9f2b4f2bbd SHA-1: c13bd84b6abf21667a7d96ed404738d0b8b8b301 SHA-256: 86d14f29a125fe4f69746ca00dc231de3d9de1e26c979fba0eb85851792a27b8
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://seumenha.ru/123?utm_term=showbox+apk+for+hisense+smart+tv PDF link annotation
    • http://4kuhd.me/596245193091m8mu.pdfIn PDF document text
    • http://titanovyi-filtr.ru/11030669815jui4r.pdfIn PDF document text
    • https://cdn.sqhk.co/vulovosovem/b08UjgU/rejekeg.pdfIn PDF document text
    • http://bio-ita.fun/here_we_go_city_navigation_apko6x54.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421209/normal_5fe9074159f12.pdfIn PDF document text
    • http://elerctum.org/koan_sound_vinyl0kigi.pdfIn PDF document text
    • http://women-ita.space/cash_app_money_hack_no_verificationjmowf.pdfIn PDF document text
    • http://vodoroding.info/kitty_cat_story_cat_avatar_makers6a32.pdfIn PDF document text
    • http://zatoboyvibor.fun/castles_of_burgundy_card_game_rulestghf1.pdfIn PDF document text
    • https://cdn.sqhk.co/vogoxaginoje/ig0jhgj/kofowusabojiginifo.pdfIn PDF document text
    • http://tb-films.ru/79449456294n2v3t.pdfIn PDF document text
    • http://copyrightmediahelp.com/58604188228mrxmk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387430/normal_5fef1af4dcc95.pdfIn PDF document text
    • http://manybigs.space/mebidigimurxtoad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fosawef/87885092191.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/lagu_yang_terdalam_versi_reggae.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/safari_browser_for_windows_xp.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/57313139223.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_off0000e1c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1C7 5636 bytes
SHA-256: c236957a997f36f29b6652501bc598bbf05e649da8b997d24bcf0732ac70a403
font_01_sfnt_off0000f4df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4DF 10296 bytes
SHA-256: 0723adf47b9420c22bcb067ea8ee37c7c08703753e903dc207c3d384caf08bf0