Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8743e13afe03e9f…

MALICIOUS

PDF

47.2 KB Created: 2020-10-05 04:41:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: fb7a0e8e0b5e30a2aed3c266676c0038 SHA-1: 76223e3dfbca0a30f1c23427fecd016d95acdb36 SHA-256: f8743e13afe03e9f6511748c2d5330a9da96c38ea1aecdacf8b0346c23551800
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://ggtraff.ru/pify?keyword=usb-c+to+ethernet+adapter+best+buy In PDF document text
    • http://xapimon.valeriezimany.com/uploads/1/3/1/0/131069934/tasatidu-moxivap-xajutulavu-murudipimob.pdfIn PDF document text
    • http://files.mx.campingasseiceira.com/uploads/1/3/0/8/130813079/f4ee317a2.pdfIn PDF document text
    • http://vidoj.alexiastevensauthor.com/uploads/1/3/1/6/131607600/repeloxugu.pdfIn PDF document text
    • http://vuxukasaw.tudorinteriorblinds.com/uploads/1/3/2/8/132814930/4080949.pdfIn PDF document text
    • https://site-1036814.mozfiles.com/files/1036814/52865183426.pdfIn PDF document text
    • https://site-1039728.mozfiles.com/files/1039728/77088630166.pdfIn PDF document text
    • https://site-1037856.mozfiles.com/files/1037856/75556137374.pdfIn PDF document text
    • https://site-1036680.mozfiles.com/files/1036680/vekozu.pdfIn PDF document text
    • https://site-1039161.mozfiles.com/files/1039161/meremabexudif.pdfIn PDF document text
    • http://files.rexrussolaw.com/uploads/1/3/1/6/131636990/2151061.pdfIn PDF document text
    • http://files.bonniepangart.com/uploads/1/3/2/6/132681464/19c708f.pdfIn PDF document text
    • http://gavosomel.patriciascudamorehiltoncatt.com/uploads/1/3/0/7/130775491/xaxusodagidud_vezetunaxe.pdfIn PDF document text
    • http://zapefemal.aide4paws.com/uploads/1/3/0/9/130969627/supivol.pdfIn PDF document text
    • http://files.antiboredomstudio.com/uploads/1/3/1/6/131637074/9372391.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/f35adf85-31ef-4e99-a457-f3e252f3c923/57667601642.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/082816af-b19c-4ec2-8c73-2d2fc481f188/bozakokafawiro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37849b20-fcf8-4468-bb61-4578e843a69c/kemawebosaxasus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e2ad325-81de-41cc-99f0-26b108f1b77b/83830747186.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/055d835b-5c00-4bd1-abdb-c00cd412df4d/4859610574.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D41 5228 bytes
SHA-256: 089c7c52e0158f8408bdc00ac1f6dec875ccf2bbd07c1e3787a91d56c7a3c8ce
font_01_sfnt_off00007ef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF6 10012 bytes
SHA-256: d4a9549bce020bcf48a379901452db0b30593ee5aa220b8a97498f96d4cd0881
font_02_sfnt_off0000a13c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA13C 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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