Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a10001caaa455f2…

MALICIOUS

PDF

76.0 KB Created: 2021-02-13 23:49:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 593f36dab6527127b3303a635b6c829a SHA-1: 9a17924a5c9aa3a7fef30ba67479b2ce288ce3d2 SHA-256: 2a10001caaa455f2bab2b98b88b2e0335d863090f45b989eaa0f9e7d97d3d3fa
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/wb?keyword=computer%20terms%20full%20form%20pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4459324/normal_5fd2620606254.pdfIn PDF document text
    • https://fikosaxan.weebly.com/uploads/1/3/4/7/134753192/4593757.pdfIn PDF document text
    • http://eeuuurrrrr.space/chollometro_black_friday_ofertash57lph.pdfIn PDF document text
    • http://probkin34.xyz/60940981480cjkek.pdfIn PDF document text
    • https://nurojitare.weebly.com/uploads/1/3/2/6/132682966/d5e343abd55.pdfIn PDF document text
    • https://cdn.sqhk.co/tujuvemevo/eigieDx/46972547378.pdfIn PDF document text
    • http://zathkatow.xyz/free_ganpati_aarti_sangrahnb9r4.pdfIn PDF document text
    • https://vazaratel.weebly.com/uploads/1/3/4/0/134017227/zazufeker.pdfIn PDF document text
    • https://cdn.sqhk.co/xalurubizud/9jbNgdX/joxufulenar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503617/normal_601e12a374d3e.pdfIn PDF document text
    • http://vipmanmarket.space/i-_10_east_traffic_reportne6p3.pdfIn PDF document text
    • http://magic-world.site/65072772332q9aik.pdfIn PDF document text
    • https://dasasaperot.weebly.com/uploads/1/3/4/6/134665710/6674804.pdfIn PDF document text
    • https://cdn.sqhk.co/xojelumegasi/QhrhIhi/samsung_my_files_network_storage.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/dagasopones/zajef.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_off0000f0e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E4 4884 bytes
SHA-256: 47b9b21b08b221a6b5b303b62baf074e1dc4848a7edaca441919680c7c5f49aa
font_01_sfnt_off00010162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10162 10000 bytes
SHA-256: 1131c49d454f2adbd36d32f31e77ec724f599bfa9c4ac3c92ea7bd53b8dd0ec0