Malicious PDF — malware analysis report

Static analysis result for SHA-256 242d4473654b91c8…

MALICIOUS

PDF

72.1 KB Created: 2021-02-26 22:04:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 9c0bdfa533b44f051e186abb725768fe SHA-1: 0b82b5410a763514ddb21de8af195ee229804699 SHA-256: 242d4473654b91c88882fe2fefc51d7d2f24ef2e48bf4cd30f24c1e2f6b7ef27
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://resalured.ru/award?keyword=ativa+paper+shredder+repair PDF link annotation
    • http://rolopigabetitu.scienceontheweb.net/shogun_2_total_war_units_list.pdfIn PDF document text
    • http://rejasepilibuxep.iblogger.org/budifiluzugejove.pdfIn PDF document text
    • http://pemufosapakem.mypressonline.com/20228708713.pdfIn PDF document text
    • http://zazeteku.iblogger.org/feet_to_inches_worksheet.pdfIn PDF document text
    • http://lazategomid.scienceontheweb.net/37110144715.pdfIn PDF document text
    • https://rinixupikexem.weebly.com/uploads/1/3/4/0/134096042/2197422.pdfIn PDF document text
    • http://lelekelosutov.getenjoyment.net/go_to_market_plan_template_powerpoint_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499656/normal_6024f9c5d6870.pdfIn PDF document text
    • http://fakixigulidol.mywebcommunity.org/how_to_grow_butterhead_lettuce_from_seeds.pdfIn PDF document text
    • https://cdn.sqhk.co/xudekutof/gjiCnjb/natural_history_geography_definition.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/wutogugej/todinarifotovakej.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/capitalized_balance_sheet_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/sad_orchestral_music.pdfIn PDF document text
    • http://fizojigijuzad.epizy.com/robbery_bob_2_full_game_free.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_off0000dee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE8 5064 bytes
SHA-256: ec1ec447d868b8297e0743d5b3632d2068f26c8276e340fc0eb5002d37ada8db
font_01_sfnt_off0000f020.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF020 10316 bytes
SHA-256: 0628c093eb2afa5b74c77255dea37761c6aa32c59e9cc60d7f4004eb855ea86b