Malicious PDF — malware analysis report

Static analysis result for SHA-256 943b04cbe9d22f34…

MALICIOUS

PDF

73.0 KB Created: 2021-03-12 01:12:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6c22d2ef4ac8b29a059ae3c09c06b2e1 SHA-1: 4aed73ee5ba3420667ca5aea1ea9ce8905d5f32a SHA-256: 943b04cbe9d22f34972138f27a0611490a09c2d22da6808c597ef37276b90ee4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://midufefew.ru/award?keyword=daftar+harga+kabel+supreme+2020+pdf PDF link annotation
    • http://mitatufemojo.iblogger.org/ardex_f5.pdfIn PDF document text
    • http://bazotoxusa.22web.org/agananooru_padal_vilakkam_in_tamil.pdfIn PDF document text
    • http://oneitshop.info/canllarda_beslenme_ekilleri_10_snf2u4ye.pdfIn PDF document text
    • https://nenusobodi.weebly.com/uploads/1/3/1/4/131406558/1087981.pdfIn PDF document text
    • http://thrivewebs.com/where_do_mutt_dogs_originate_from7v4ww.pdfIn PDF document text
    • https://samituvejasuw.weebly.com/uploads/1/3/1/4/131406365/werofe.pdfIn PDF document text
    • http://juluzenaluziwo.22web.org/stihl_blower_attachment_vacuum.pdfIn PDF document text
    • https://xigobiniliw.weebly.com/uploads/1/3/5/2/135298108/dd7ee34.pdfIn PDF document text
    • http://bovibuvebus.getenjoyment.net/canada_newspaper.pdfIn PDF document text
    • https://rexekimat.weebly.com/uploads/1/3/4/0/134017736/06a98879a2f.pdfIn PDF document text
    • http://palaxofivuleduj.medianewsonline.com/wanunadi.pdfIn PDF document text
    • https://judikojegewag.weebly.com/uploads/1/3/4/5/134583508/juwulijagiva.pdfIn PDF document text
    • https://vonuvevija.weebly.com/uploads/1/3/1/4/131407152/gorakofal-kenanos-jofowodi-pawuresa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mawokale.myartsonline.com/beginner_piano_books_for_5_year_old.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eeb3228c-a88a-4115-8793-fceb58de1944/viwabutemufokawerato.pdfIn PDF document text
    • http://potubavaziripek.epizy.com/dimogalumopibufaziwevomug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1a261a7-194b-4fbe-a811-cd07c1642382/75160400975.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bf1748f-bd06-42d3-a2bc-acde8bd6e3cc/pijixe.pdfIn PDF document text
    • http://fudedeki.rf.gd/63716124325.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_off0000da0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA0A 5932 bytes
SHA-256: 0728c242d086fc07627cc821e035c2646745517fdd19d4dd99019f96b69abba1
font_01_sfnt_off0000ee16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE16 12444 bytes
SHA-256: 96aa3d299b44ab7629b718b8fb07a0845ab6598b7df2d4c6979f035d797f206f