Malicious PDF — malware analysis report

Static analysis result for SHA-256 34f3050edf3ab5c3…

MALICIOUS

PDF

66.9 KB Created: 2021-02-04 17:51:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-31
MD5: 64ce3e7c835d134549b8188c15453a69 SHA-1: 42a0e2fbb478b04fa02478decb6552d9b5b6fdc4 SHA-256: 34f3050edf3ab5c3e1251ca9a0577ee10549d7f5f009a55413a552a76009c840
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/shook?utm_term=average+monthly+cost+for+universal+life+insurance PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4453885/normal_6001dce4408c2.pdfIn PDF document text
    • http://centerverifybadge.com/libro_de_espaol_segundo_de_secundaria_contestadobf0dq.pdfIn PDF document text
    • http://electrumwallet.buzz/64243226799w14yw.pdfIn PDF document text
    • https://zabugejagovim.weebly.com/uploads/1/3/1/6/131637755/1b965cb571.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375204/normal_5fe70ef4cb64b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454990/normal_60166ff4d349a.pdfIn PDF document text
    • http://juilopkiretlo.ru/volver_con_ellakv4n8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405437/normal_5fed56e013c21.pdfIn PDF document text
    • http://santaparker.store/origami_box_with_lid_one_piece0p4or.pdfIn PDF document text
    • https://cdn.sqhk.co/tuvameboroke/nCYVygj/wyze_cam_pan_app_for_iphone.pdfIn PDF document text
    • http://oyuncuxx.com/los_secretos_del_inmortal_nicolas_fl1c0jf.pdfIn PDF document text
    • https://nivebisela.weebly.com/uploads/1/3/3/9/133997547/safibix.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/bopuxosavubare/manualidades_navidenas_con_material_reciclable.pdfIn PDF document text
    • https://s3.amazonaws.com/wovugi/riwutamezezabuvutixatore.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/adobe_reader_2019_msi.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_off0000ca65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA65 5444 bytes
SHA-256: 91cb23fab7289cb3f7f019de37a78fbf4a15b704d63a51a1c5b505de396fc166
font_01_sfnt_off0000dcd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCD3 10008 bytes
SHA-256: 4a5e6369f2733b7fabb523c4af0ce4fad2577b7770ce3f42fb01eafd9c5172b7