Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c84d20b6e5c2905…

MALICIOUS

PDF

70.2 KB Created: 2021-03-08 22:44:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: c983ea7419ccd1b632c97a59c67222be SHA-1: 6cdb255cfd144b964b29ff9dee8cc1bcb208702d SHA-256: 1c84d20b6e5c2905cda560a6f331955889df7b3d254a989a196c185685ba39e2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://kuzutuzo.ru/award?keyword=automotive+technician+training+level+2+pdf PDF link annotation
    • https://xukotonaxi.weebly.com/uploads/1/3/1/4/131453431/vukug.pdfIn PDF document text
    • http://rapejavom.22web.org/descargar_badland_apk_full_mega.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488815/normal_600aeac576ed0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478664/normal_5fd33588d7881.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407804/normal_5fedc6dfe10b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385197/normal_602c6a8731f09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426954/normal_6036cb712a619.pdfIn PDF document text
    • http://gatofupimekow.mywebcommunity.org/how_to_wash_diono_radian_car_seat_cover.pdfIn PDF document text
    • http://wolifote.getenjoyment.net/vamonileg.pdfIn PDF document text
    • https://nijenemal.weebly.com/uploads/1/3/4/4/134465501/degolanabomanobinew.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gujodilulu.rf.gd/i_aint_losing_you_meaning.pdfIn PDF document text
    • https://626fb5af-1d67-41cb-86ce-204163677ff0.filesusr.com/ugd/9d869b_7c913dcbcbdd40b9a27059b47b1c6caa.pdf?index=trueIn PDF document text
    • http://remobufu.rf.gd/65969996030.pdfIn PDF document text
    • http://vufagozujidivu.epizy.com/performance_improvement_plan_template_example.pdfIn PDF document text
    • https://920f4c01-5fd6-4c40-8b27-b99972fecb60.filesusr.com/ugd/d63aaf_4d47617ce328463390b8e4de72ecd326.pdf?index=trueIn PDF document text
    • http://kubusefot.epizy.com/jitemoderuwagopukok.pdfIn PDF document text
    • https://e0d0d77b-4c00-4265-bc22-f0cc5cf11ada.filesusr.com/ugd/957eb4_d2cf09a9c500478485e7cc0d2f06ffd6.pdf?index=trueIn PDF document text
    • http://gazosaka.epizy.com/59823471786.pdfIn PDF document text
    • https://da550aaf-34ae-4f9b-ad82-7836b82beebe.filesusr.com/ugd/a203e6_b3921d9e22d34e2caffac9e99744dbf6.pdf?index=trueIn PDF document text
    • https://cd753cf5-d90a-4073-9c55-931a76e81761.filesusr.com/ugd/8826df_ed3358b988494e53a4aedff08a26ad08.pdf?index=trueIn PDF document text
    • http://dogiwexor.myartsonline.com/wubezijivotiruvakawunov.pdfIn PDF document text
    • http://rofokosakesa.epizy.com/liberalismo_mexicano_contemporaneo.pdfIn PDF document text
    • http://jikolelekad.epizy.com/eotech_laser_battery_cap_for_512_552_sight.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_off0000d298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD298 5572 bytes
SHA-256: 5a375583928509ddbbef964a922464ccfd2203a9a204119e57572047d42a638d
font_01_sfnt_off0000e570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE570 10540 bytes
SHA-256: 6a86b6bcbdc11f258bcd8c54a6ed58d6f57d84db67a58466c51a365192bcf38a