Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fe9afd89315ebbf…

MALICIOUS

PDF

71.6 KB Created: 2021-02-27 17:02:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a3ce4adfc45b7e782189fa1f09df3919 SHA-1: 1c00e11b68d3f98ae76b38c489cac90370b7e98e SHA-256: 8fe9afd89315ebbf488194ea5992f248e9a604766e8ea1d41bf7bd33ee60e17b
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://baarspo.ru/award?keyword=metodologia+y+tecnica+de+la+investigacion+juridica+perez+escobar+pdf PDF link annotation
    • http://mavigawika.scienceontheweb.net/59605028584.pdfIn PDF document text
    • https://fomodefoz.weebly.com/uploads/1/3/5/9/135958111/ripujigemebe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387056/normal_5fdf818cb8335.pdfIn PDF document text
    • https://muwikoli.weebly.com/uploads/1/3/2/7/132740525/2524224.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467586/normal_5fe07ea31cb28.pdfIn PDF document text
    • https://vevusivo.weebly.com/uploads/1/3/0/8/130874001/vavegumemawewufafim.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374189/normal_600298c834bb2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491936/normal_5fd1147653e39.pdfIn PDF document text
    • http://lebedugipul.mywebcommunity.org/mifagepamutati.pdfIn PDF document text
    • http://xofofumireke.mypressonline.com/6043804322.pdfIn PDF document text
    • https://vuvoxuwamulixa.weebly.com/uploads/1/3/0/7/130739220/diwuv_zufuwezi.pdfIn PDF document text
    • https://marejipafikelor.weebly.com/uploads/1/3/1/4/131437604/zufusaruwawanikid.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/tixedujegibex/blinding_in_research.pdfIn PDF document text
    • http://gaxilitexu.onlinewebshop.net/qumi_hd_pocket_projector_q5-wt.pdfIn PDF document text
    • https://s3.amazonaws.com/tumasun/39540243384.pdfIn PDF document text
    • http://tavoxelelenasi.onlinewebshop.net/sewejujoraw.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/appserv_for_windows_server_2008_r2.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/manualidades_faciles_de_hacer_con_reciclaje.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_off0000d53a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD53A 5756 bytes
SHA-256: 22495a0bdb150f59f0b798646e332e1b3ad7cec9d12195277c4cb56854226b2c
font_01_sfnt_off0000e908.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE908 11588 bytes
SHA-256: f8adcd05d28cb330a99d8745e3a10dd3541d79d07962532c262bc93902da6a58