Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f2444d5514d4fdc…

MALICIOUS

PDF

73.2 KB Created: 2021-02-19 23:26:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 891bb6b8b555160f77ae5d12b455aa0d SHA-1: 852d1c00078aa716f08f1b7d7a9fe7b7b2eb6262 SHA-256: 9f2444d5514d4fdc01993aca8ff8b72520387bb6de0780d752e5703b328761b5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/wix?keyword=sarpy+county+landfill+rates PDF link annotation
    • http://runmasten.online/2252728081971d9c.pdfIn PDF document text
    • http://fortuneo.best/mpandroidchart_pie_chart_examplelqohn.pdfIn PDF document text
    • https://vufufibujirefe.weebly.com/uploads/1/3/4/3/134355905/kogarudi.pdfIn PDF document text
    • http://fruktovik.com/call_of_the_wild_webquestotl5z.pdfIn PDF document text
    • http://salet.store/9217986164zc8wv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410201/normal_5fd3855a7bb9a.pdfIn PDF document text
    • http://erkutungotu.com/464717442624qg1h.pdfIn PDF document text
    • http://item-mask.top/ipega_pg-9023_wireless_bluetooth_game_controller8xuq5.pdfIn PDF document text
    • https://voloxamofe.weebly.com/uploads/1/3/0/8/130874475/521345.pdfIn PDF document text
    • http://true-board1.club/28560245826b2r9g.pdfIn PDF document text
    • http://counterman.ru/finadadit1olz.pdfIn PDF document text
    • https://pafuxasakilufa.weebly.com/uploads/1/3/5/3/135327400/kimadotesad.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/jovekus/nfs_payback_gameplay.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_off0000df4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF4B 5352 bytes
SHA-256: ea3c488b9eb72b6aab6c0f0223202b58aef20e0e0eaede70a5e7bc258cb261ab
font_01_sfnt_off0000f19c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF19C 11268 bytes
SHA-256: 6fa8d1cfa30c308c2f6d1d8ed4212afe1d48990242c81f1ac1f953892e27074a