Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad7802118e4d099d…

MALICIOUS

PDF

73.1 KB Created: 2021-02-15 09:44:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: dfe1abb6d3562af46b8d3cffd0543fc7 SHA-1: 4036f2168218086b316a1a04ba8cbea3feed5876 SHA-256: ad7802118e4d099d46306c61aee45b4a7a57261b5644143d48103078c578c624
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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/wix?keyword=2k19+locker+codes+that+don%2527t+expire PDF link annotation
    • http://tortomsk.ru/deparepojokojem4h9lo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455194/normal_6028f1460e288.pdfIn PDF document text
    • https://gasezojilatinoj.weebly.com/uploads/1/3/1/4/131455825/ditaf_xudanutiremo_fasewexuwer.pdfIn PDF document text
    • http://genusttwsr.fun/31785827979tmmsd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472494/normal_6008cf7053fa2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496592/normal_602051198bb65.pdfIn PDF document text
    • https://debinezituxi.weebly.com/uploads/1/3/4/3/134339783/f8b1d.pdfIn PDF document text
    • http://domensita.fun/capital_letter_tracingtyl6x.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369149/normal_5fc64331dde02.pdfIn PDF document text
    • http://vzale.ru/nigidabixafede1x3og.pdfIn PDF document text
    • https://relelije.weebly.com/uploads/1/3/1/4/131438324/4213914.pdfIn PDF document text
    • https://vexinafofonazes.weebly.com/uploads/1/3/1/8/131871992/4579262.pdfIn PDF document text
    • http://domsale.xyz/48401495179b2twb.pdfIn PDF document text
    • http://ragixanomus.iblogger.org/nakop.pdfIn PDF document text
    • http://gravkamen.ru/88532366104w6r2t.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/xomepixo/85323943068.pdfIn PDF document text
    • http://badavusepewojo.epizy.com/my_jio_calling_apps.pdfIn PDF document text
    • http://zozezad.epizy.com/cisa_study_guide_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/trade_show_booth_design_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/marvel_super_war_beta.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/portal_2_steam_achievement_guide.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_off0000e0bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0BB 5572 bytes
SHA-256: 7a8346be390dfae6480468fc974b6fe05d91fdf096f3b9a09b9c16303d899450
font_01_sfnt_off0000f3b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B5 10256 bytes
SHA-256: 1f4de9020bcd7bdfa67f2cba6cb5c1657a0c2eaad89537883f1a04df1c80aba6