Malicious PDF — malware analysis report

Static analysis result for SHA-256 c154ff7aed1f3a72…

MALICIOUS

PDF

72.4 KB Created: 2021-02-25 14:40:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 108455c03be2481ed3ea29c3efc6bed7 SHA-1: ee463da8e55519988bd1984f0b870048efb079ab SHA-256: c154ff7aed1f3a725686f988cab170c54f2e2983abc5fe7be4b79b4fd044a233
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/award?keyword=lyrics+of+seven+years+by+lukas+graham PDF link annotation
    • http://show-visitor.xyz/tft_set_4_cultist_itemja31s.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/ji9Detx/41481965199.pdfIn PDF document text
    • http://urolog.xyz/bernard_shaw_arms_and_the_mankf61f.pdfIn PDF document text
    • http://selectgetc.top/cindy_margolis_nude3ti5c.pdfIn PDF document text
    • http://naturka.space/migasuao9x1.pdfIn PDF document text
    • http://pedalini.club/wukakizutubewawubalidotnrlb8.pdfIn PDF document text
    • http://respect-ltd.su/30229663588iaevd.pdfIn PDF document text
    • https://cdn.sqhk.co/bexoninodag/gihgnhh/cosmo_run_2019.pdfIn PDF document text
    • http://emmetrix.net/dawnblade_build_pvpni9ur.pdfIn PDF document text
    • http://doctora.club/bilurijezoluvagafezolauu6o.pdfIn PDF document text
    • http://requiremcgood.com/meramfezuh.pdfIn PDF document text
    • https://cdn.sqhk.co/jemitaso/ggXjdih/newisulesakuseso.pdfIn PDF document text
    • http://sodaapp.pro/88663786302xda8t.pdfIn PDF document text
    • https://cdn.sqhk.co/burajugi/ghdlBYW/the_tiger_king_mystery_netflix.pdfIn PDF document text
    • http://domen3.club/81375586454olsci.pdfIn PDF document text
    • https://sanijala.weebly.com/uploads/1/3/4/8/134889677/3828587.pdfIn PDF document text
    • https://cdn.sqhk.co/gobuwovuv/hcrhijd/idle_breakout_hacked_unblocked_at_school.pdfIn PDF document text
    • https://fiwofufoneronup.weebly.com/uploads/1/3/1/0/131071066/0fe9ce.pdfIn PDF document text
    • https://vozozexofevufut.weebly.com/uploads/1/3/1/8/131871902/3a976930c9ddcf.pdfIn PDF document text
    • http://apparently-home.com/boyle_s_law_worksheet_11emrn.pdfIn PDF document text
    • http://the-english-temple.com/arabic_letters_writing_practicesjuoz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ded8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDED8 5600 bytes
SHA-256: 223903a0031b284b352f6cfe5c7d0bccee55300114512501fbc5e276a5754ced
font_01_sfnt_off0000f1d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1D8 10056 bytes
SHA-256: 42386c25683cff49253cc3402082e15cab06b52b1fb07d09b27ae6f79901c091