Malicious PDF — malware analysis report

Static analysis result for SHA-256 d58099d44a557eaf…

MALICIOUS

PDF

66.3 KB Created: 2021-02-12 00:56:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6ebd0a654a32a3e82468d07e7afa5b02 SHA-1: 4237972012daafcdb59b4b4c903bef2633e423f4 SHA-256: d58099d44a557eaf3f4ccda93fed8a7020ff56bd7f2ebebb3665b77a5f4133b2
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://leonvi.ru/123?utm_term=pharmanex+ageloc+youth+span PDF link annotation
    • http://usesol.xyz/aushadh_darshan_acharya_balkrishnaqtgx5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482009/normal_5fed9b5224e92.pdfIn PDF document text
    • http://vitrinachel.ru/wizofep1zad.pdfIn PDF document text
    • https://dafebifu.weebly.com/uploads/1/3/4/3/134399244/wavowaje.pdfIn PDF document text
    • http://ninefuva.22web.org/scream_go_hero_game_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452382/normal_600982a3db404.pdfIn PDF document text
    • https://lasebotoxuxuxir.weebly.com/uploads/1/3/4/7/134729765/dujapi-toruvirenudati-zerira-vakitawamiz.pdfIn PDF document text
    • https://dupujemewo.weebly.com/uploads/1/3/4/0/134040979/gukevabezimoj.pdfIn PDF document text
    • https://furimubabo.weebly.com/uploads/1/3/1/8/131856330/4794968.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416921/normal_60067d0d740a0.pdfIn PDF document text
    • http://bettermoneytips.com/chapati_roti_video57jvq.pdfIn PDF document text
    • https://kegalanomer.weebly.com/uploads/1/3/1/8/131856310/welaxifesib_xexikogisija_xaxadefexexo_saxifexez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kibozitasosisan.epizy.com/invitation_cards_for_christmas_party_templates.pdfIn PDF document text
    • http://jujabezemaluwe.rf.gd/muwekitoliw.pdfIn PDF document text
    • http://faxiwig.epizy.com/informacion_plusvalia_municipal_ayuntamiento_de_madrid.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_off0000c55b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC55B 5516 bytes
SHA-256: ed6bc1b0355065263c408791d63824bdc0d0e96e24de632998fbcdc7f26d6fe7
font_01_sfnt_off0000d805.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD805 10796 bytes
SHA-256: 5e6e09574a0463b24e3aeba2b193c85ce6bd0c89dac9aa42b0e6e2e4c04caf22