Malicious PDF — malware analysis report

Static analysis result for SHA-256 446a1ecdb98bc099…

MALICIOUS

PDF

47.8 KB Created: 2020-04-09 14:48:42 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2021-02-18
MD5: e5e44c285b2db9de91a1bbf4f0b51cae SHA-1: f696c00f8683fc878be6c6cc60d365eee05481fb SHA-256: 446a1ecdb98bc0994d10716d92033c87a049a86e942927bfd51bfcd1a7f3301b
104 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 http://nnoodl.com/uploads/1/3/0/5/130543383/130543383.html#holding+hands+holding+hearts+pdf PDF link annotation
    • http://lawandamorrisconsulting.com/uploads/1/3/0/9/130969046/pefagegepobumubituvi.pdfIn PDF document text
    • http://enjoybeingfitstudio.com/uploads/1/3/0/3/130323302/ginejix.pdfIn PDF document text
    • http://arcrecruits.com/uploads/1/3/0/5/130550998/jololupove_wufil.pdfIn PDF document text
    • http://erikbucoy.com/uploads/1/3/0/8/130874672/wewugifunifakaj.pdfIn PDF document text
    • http://astransactions.net/uploads/1/3/1/4/131452987/725c470fa1de2.pdfIn PDF document text
    • http://cmbfinancialservicesinc.com/uploads/1/3/1/0/131070866/dukirexamabivopajeg.pdfIn PDF document text
    • http://estheaprague.com/uploads/1/3/0/6/130604682/kadavatugofe_dimuxuzobetij.pdfIn PDF document text
    • http://greatusedcar.co/uploads/1/3/0/4/130488396/jerozadesoroze_tuwaga_kozowukovuwul_jivevibefasurem.pdfIn PDF document text
    • http://i-caps.com/uploads/1/3/0/8/130873957/4796828.pdfIn PDF document text
    • http://motocrossformalaria.org/uploads/1/3/1/4/131438163/43eb130460.pdfIn PDF document text
    • http://divorceceremony.net/uploads/1/3/0/2/130289803/kupajugogaf.pdfIn PDF document text
    • http://iamrjm.com/uploads/1/3/0/6/130620282/sikokagagu_pugiba_xezunazelifat.pdfIn PDF document text
    • http://everyhumanbeing.org/uploads/1/3/0/6/130639973/4208733.pdfIn PDF document text
    • http://channingbenjamin.com/uploads/1/3/0/7/130775880/f2effc606ba36a2.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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ff3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF3 9360 bytes
SHA-256: 937b2bb43eb182cba7fcaa1ad6b00bfcd035af607eee1dbb469e88a0d3e819d3