Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffe202961105cdef…

MALICIOUS

PDF

68.0 KB Created: 2021-02-27 14:50:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3a87507e9d43f7fe5bbe59846817dc13 SHA-1: 8ee21cc24b35e664f021a5569e31b2db9f7dd2e5 SHA-256: ffe202961105cdef179ca5212b9bf8a066c1c1f0f8c468dd9cb816c1c55df0fb
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://mezovuduw.ru/123?utm_term=solve+multi+step+equations+lesson+5 PDF link annotation
    • http://thrivewebs.com/95189912761ie1xz.pdfIn PDF document text
    • http://nely.xyz/guwudaxatubukevigikuxurnkiq5.pdfIn PDF document text
    • https://cdn.sqhk.co/fexonawizoz/hhaidXC/16916619459.pdfIn PDF document text
    • http://frasqen.online/8865387330doa2j.pdfIn PDF document text
    • http://starconflict-game.ru/display_advertising_marketing_definitiong405o.pdfIn PDF document text
    • http://fb-ig-violation.com/727528298929dhb1.pdfIn PDF document text
    • http://gordei2d.com/bang_bang_song_free_mp4dyebq.pdfIn PDF document text
    • http://siankaanmexico.com/don_t_bet_on_the_princezxm5f.pdfIn PDF document text
    • http://meine-gebuhrenfrei.com/sewer_system_designtq9pr.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/benubapopikaj/dawesotivak.pdfIn PDF document text
    • http://sulumasofip.epizy.com/bolanekokotasikej.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/39832215364.pdfIn PDF document text
    • http://japorununatoj.epizy.com/where_are_reznor_heaters_made.pdfIn PDF document text
    • https://s3.amazonaws.com/vesubodufisi/weather_report_next_week_london.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagobomap/autodesk_vault_workgroup_2019.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_off0000cc58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC58 5284 bytes
SHA-256: 8a5ed740a8aa00904ad90c180266b2e9e4a46368c47bd4a59d2b8b29c35c78da
font_01_sfnt_off0000de4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE4E 10796 bytes
SHA-256: 883a42339cf4b3225ea937ba33443c242cfab2afa7ab9011b12f667519f7b18b