Malicious PDF — malware analysis report

Static analysis result for SHA-256 65ef063debcebab8…

MALICIOUS

PDF

71.8 KB Created: 2021-03-03 09:13:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0f8674d7ec056142f2ddabaf7bdd2a6d SHA-1: 30775dab828af900bb0e5b9edcac886414b2f778 SHA-256: 65ef063debcebab872942c0ac68f6ac54d8dce35545e037bf7a4f36e0d06621a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://seumenha.ru/award?keyword=how+fast+is+a+club+car+precedent PDF link annotation
    • http://pebifakonek.sportsontheweb.net/gazikajamivudures.pdfIn PDF document text
    • https://zatemolepilud.weebly.com/uploads/1/3/6/0/136085897/lizorum.pdfIn PDF document text
    • http://trycabinets.xyz/24550765325y43gn.pdfIn PDF document text
    • http://mufutekuson.getenjoyment.net/zejaki.pdfIn PDF document text
    • http://lusififaji.iblogger.org/mokizubip.pdfIn PDF document text
    • https://mokizafot.weebly.com/uploads/1/3/5/3/135347773/ef7383cf003.pdfIn PDF document text
    • http://allfreebets.ru/xigovagosigitipiwowapayvur8.pdfIn PDF document text
    • https://fatajoser.weebly.com/uploads/1/3/4/6/134655124/dca1e695cf.pdfIn PDF document text
    • https://nedagipi.weebly.com/uploads/1/3/4/7/134724638/dozokan-paninudesoza-bibofuzam-wedoxijikunuf.pdfIn PDF document text
    • https://ninibukakogim.weebly.com/uploads/1/3/2/8/132815385/1007897.pdfIn PDF document text
    • https://xunimolozabipos.weebly.com/uploads/1/3/2/6/132681728/fovokewisif.pdfIn PDF document text
    • http://medyayazilimtr.com/genius_scan_-_scanner_reviewa5rmi.pdfIn PDF document text
    • http://instapriz.online/85742608740bhr83.pdfIn PDF document text
    • https://gizutiki.weebly.com/uploads/1/3/4/4/134478998/58ae8b802e3d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sutexuvidag.myartsonline.com/9767470086.pdfIn PDF document text
    • http://tenefotozefuzuw.rf.gd/property_inspection_report_template_uk.pdfIn PDF document text
    • http://gebuzabode.epizy.com/soft_copy_of_pan_card_online.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_off0000dcb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB6 5344 bytes
SHA-256: 88f46b4cc206ed08299e1a9208a772f507bc5faf37a7963935384200fbe578b7
font_01_sfnt_off0000eefa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEFA 10344 bytes
SHA-256: 62f5333468c5efc854d1c4eeaf55ee7bc809d2150b1f871a04058c314c873a5c