Malicious PDF — malware analysis report

Static analysis result for SHA-256 93d77ec7623271f8…

MALICIOUS

PDF

72.9 KB Created: 2021-02-25 10:00:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4704c6d7ae26d42edb74f6c9c536bfaa SHA-1: 15a6d3759c2d14dcc9101827ac5345fac1bb1347 SHA-256: 93d77ec7623271f88372e5e9ae02d957ed05282cbfcb0df1e3a3ca1325116b5c
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://bologen.ru/award?keyword=google+maps+my+current+address PDF link annotation
    • http://50offstore.info/kopizuwiqcf47.pdfIn PDF document text
    • http://khareedforosh.com/megalavir14jq.pdfIn PDF document text
    • https://cdn.sqhk.co/dutebevon/ilChgxt/51667408452.pdfIn PDF document text
    • https://cdn.sqhk.co/bogulevim/r4Jhihj/how_to_play_solitaire_on_my_phone.pdfIn PDF document text
    • https://cdn.sqhk.co/birenejar/xs4Ajd5/kojoj.pdfIn PDF document text
    • https://cdn.sqhk.co/jurugaguvedu/siaUjjj/90367085313.pdfIn PDF document text
    • http://teasmall.space/radio_interview_script2ocv9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446400/normal_5fe6202d4e4d3.pdfIn PDF document text
    • https://cdn.sqhk.co/zopinulepa/jghpyVa/like_a_boss_meme_gif.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385014/normal_5ff9726f1554d.pdfIn PDF document text
    • http://lianhua.life/axl_2018_sinhala_subt6fl1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381980/normal_600137c09c76e.pdfIn PDF document text
    • http://huaweistoreukr.xyz/tic_tac_toe_2_player_appcqp22.pdfIn PDF document text
    • http://famozosivupiwij.sportsontheweb.net/4371563783.pdfIn PDF document text
    • http://soldatskaya6.ru/gujezunajemebiwatimodugesg2e.pdfIn PDF document text
    • http://matroskin.space/76055059546m6v5x.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_off0000e10f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE10F 5528 bytes
SHA-256: e66d50506b943cb70b03d59451ae95b6cbba202edfb77b01eb7cdcfacc391468
font_01_sfnt_off0000f3d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3D0 10328 bytes
SHA-256: 586e6e12542dde3b4b1ef4f4728690990e9c4a7889df7a33403aa295c6022b1a