Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0413b9e5c1e7397…

MALICIOUS

PDF

72.4 KB Created: 2021-02-25 21:43:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1f9ace33f3a8ad42f642abda096fdd0f SHA-1: cd28ebc7ac5a9959cf99a8afff5f7e041f65d83e SHA-256: c0413b9e5c1e73978457ae10ab6558ef8fef4a3de88ca9c638c6c5a103fb0eb9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://jottigo.ru/award?keyword=craftsman+lt2000+model+number PDF link annotation
    • http://rarafon.iblogger.org/wubaxafefekemivoxufapod.pdfIn PDF document text
    • https://cdn.sqhk.co/gukokefa/jidPugc/wafer_warpage_measurement.pdfIn PDF document text
    • http://chambreapp.xyz/30751343784kxsd7.pdfIn PDF document text
    • https://jibogikufojubu.weebly.com/uploads/1/3/1/4/131438018/7770066.pdfIn PDF document text
    • http://vnatural.space/55985883293e2eoy.pdfIn PDF document text
    • https://musekakilex.weebly.com/uploads/1/3/1/4/131406804/zetefogobapedaj.pdfIn PDF document text
    • http://sexedate69.site/vizio_e600i-b3_main_board_newfo2br.pdfIn PDF document text
    • https://xibuzapesajeg.weebly.com/uploads/1/3/4/2/134236274/1121403.pdfIn PDF document text
    • http://volusatekoz.22web.org/41277959959.pdfIn PDF document text
    • https://cdn.sqhk.co/jakufomego/7hdjgie/ducks_unlimited_credit_card.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bozivexaterem.epizy.com/background_check_authorization_form_in_spanish.pdfIn PDF document text
    • http://likifodafiduno.epizy.com/xinudekebivilava.pdfIn PDF document text
    • https://s3.amazonaws.com/mavixu/pugaloxebogedovepalupog.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/jacket_design_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jonora/nebuvuzojakogimado.pdfIn PDF document text
    • http://mebijido.rf.gd/jufobuzarofikozamokili.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_off0000dedc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEDC 5372 bytes
SHA-256: dca78163676b0455a4d010aca631c9278b089f67b88b9f4e52f9728e795ebf84
font_01_sfnt_off0000f100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF100 10380 bytes
SHA-256: 4c7e346e83951b5e8a4a6a58871cee1fc87c282e5e9dd5db9a92aad356ba351a