Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2edca81a7134e21…

MALICIOUS

PDF

71.5 KB Created: 2021-06-11 09:19:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 644a56ed2f3a4248e3e544cb56efdc4a SHA-1: cddaa78ce6d6bdb5cd6e2764914fcfb2b3c16080 SHA-256: d2edca81a7134e214068ab656e3fdc991c6c7343a5239d1f7f6641844d66365a
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://queure.ru/pbw?utm_term=naruto+offline+games+apk+free+download PDF link annotation
    • https://sexedevojaboto.weebly.com/uploads/1/3/2/6/132695366/pobati.pdfIn PDF document text
    • https://keboxatoxumire.weebly.com/uploads/1/3/4/5/134591907/af88c9e9711164d.pdfIn PDF document text
    • https://gobezovix.weebly.com/uploads/1/3/1/4/131454522/ccaa6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471958/normal_5ff7d02ddb541.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481163/normal_60662e01e84be.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376374/normal_5fe3df96af9b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369908/normal_602a90be414b2.pdfIn PDF document text
    • https://rezalebivug.weebly.com/uploads/1/3/0/9/130969918/tiniv-lejuginugipu.pdfIn PDF document text
    • https://vadibuxazuxubaw.weebly.com/uploads/1/3/4/8/134855910/1852986.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455886/normal_5fdaad0ba30a8.pdfIn PDF document text
    • https://wemawamirake.weebly.com/uploads/1/3/5/9/135959397/gadeko_kajidixidaxoxux_monezoseluroba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406516/normal_60489eb0f2f31.pdfIn PDF document text
    • https://retujesa.weebly.com/uploads/1/3/4/5/134529196/makunibifope.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498376/normal_600a2441c594d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469634/normal_5ff718283a340.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://midevodimu.pbworks.com/f/taylor_swift_google_drive_mp3.pdfIn PDF document text
    • http://puzavofan.pbworks.com/w/file/fetch/144714699/how_to_save_selected_cells_in_excel_as.pdfIn PDF document text
    • http://nuxawakaxaz.pbworks.com/w/file/fetch/144902364/happy_birthday_meghana_cake_images.pdfIn PDF document text
    • http://rabumofu.pbworks.com/f/94509512819.pdfIn PDF document text
    • http://murusefikuk.pbworks.com/f/fuloxakunalapeduliloteg.pdfIn PDF document text
    • http://kiletejude.pbworks.com/w/file/fetch/144412167/how_to_connect_ue_boom_to_new_phone.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_off0000dc21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC21 5484 bytes
SHA-256: 98a4a9c3846f7df761c06fa50b74830036a762bad2808b125df0255e4aa61122
font_01_sfnt_off0000eed3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEED3 9804 bytes
SHA-256: 9ba229f35f563bceb47e60bf338925f42ad63d8a44ca90af25158c1b06f6f506