Malicious PDF — malware analysis report

Static analysis result for SHA-256 484910199c55129c…

MALICIOUS

PDF

70.3 KB Created: 2021-02-28 04:04:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 4e451f243f61cd3771426024efbe87ac SHA-1: 4dc753cafda0336f909d91303aa712f4ea412a0a SHA-256: 484910199c55129c8e85c77f379f37fdcdc77121c9eb1d743ea9b0915727d860
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://dafemum.ru/award?keyword=honeywell+rth2310b+manual In PDF document text
    • https://siroxaje.weebly.com/uploads/1/3/4/0/134000026/0dd23.pdfIn PDF document text
    • http://xorimomupajo.scienceontheweb.net/mitsubishi_mini_split_service_port_size.pdfIn PDF document text
    • https://nifevokore.weebly.com/uploads/1/3/1/4/131437532/a99b6cc5f14f56.pdfIn PDF document text
    • http://lightstart.xyz/506611058072u7b1.pdfIn PDF document text
    • http://sparzha.club/libro_inteligencia_emocional_2.0_descargar_gratis1qh5m.pdfIn PDF document text
    • https://cdn.sqhk.co/jozojijejip/Tp5Zsie/29744192109.pdfIn PDF document text
    • https://cdn.sqhk.co/xasexuwosul/hcVibge/efl_championship_top_scorers_20_21.pdfIn PDF document text
    • http://karnaval.host/colours_that_go_well_together_with_blackfts76.pdfIn PDF document text
    • https://runumoviw.weebly.com/uploads/1/3/4/8/134854062/rubesimaral.pdfIn PDF document text
    • http://lilubaxubaxulu.sportsontheweb.net/nirovawumuginujarifebido.pdfIn PDF document text
    • http://ru-order-687646765445.art/76232956703y7ese.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://widuxetikos.epizy.com/congo_rumba_music_video.pdfIn PDF document text
    • http://zudetifaxazuwe.rf.gd/tugexule.pdfIn PDF document text
    • http://poxarow.epizy.com/hmrc_intermediary_reporting_deadlines.pdfIn PDF document text
    • http://lemutuzuvaw.rf.gd/mcquay_chiller_plant_design_application_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_off0000d5bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5BD 5532 bytes
SHA-256: 05f1695f13d4e080cd13432325071aa66ceeff123acc6bced55493a693c7461e
font_01_sfnt_off0000e876.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE876 10620 bytes
SHA-256: 996267d34a83b8c5a3934579ed5f78f607a24b74e000d3559ebc0d8c989caa25