Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6e40f9d613d55b1…

MALICIOUS

PDF

72.5 KB Created: 2021-02-16 13:37:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0f6252f70c885ad328b8fa479f4b6221 SHA-1: 28bddf2d607d3c43323bcc0d14d8fb5aa4ff9b76 SHA-256: c6e40f9d613d55b16a044742947f1e575ea22d3cb4f1dc1c59cc29dd3dded86e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/wix?keyword=taylor+1522+indoor+outdoor+thermometer+manual PDF link annotation
    • http://kanshoper.site/cg_song_dj_remix_2018p8xv2.pdfIn PDF document text
    • https://sifumoxijobobo.weebly.com/uploads/1/3/4/4/134493963/wipadejukop_begifi_rigitanalurud_xutezazidu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453741/normal_5fe02d8f3663c.pdfIn PDF document text
    • http://mnatural.space/borufi727hw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416501/normal_6005f985b7aee.pdfIn PDF document text
    • http://sosed.market/28700151056wwair.pdfIn PDF document text
    • http://abzac.me/fifafidedilok12voa.pdfIn PDF document text
    • https://gutavavoz.weebly.com/uploads/1/3/4/0/134000423/1607df0ce8c8d3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456135/normal_5ff1d7ae5b5bb.pdfIn PDF document text
    • https://kelulove.weebly.com/uploads/1/3/0/7/130775366/4067755.pdfIn PDF document text
    • http://lnstagramsupportingcenter.com/2006_road_king_service_manualzvh3q.pdfIn PDF document text
    • http://formulamoney.top/memiwadilongxgs.pdfIn PDF document text
    • http://mamajan.space/caractersticas_del_aprendizaje_significativo_y_memorstico3ykbe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wujapu/jitigorexoxabotoda.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/98636896351.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_off0000deba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEBA 5248 bytes
SHA-256: 8a86347da259d925ea334052ac75401bd2717893945e2a547bab04fc0f68949d
font_01_sfnt_off0000f079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF079 10756 bytes
SHA-256: 043c30d38f0611571e92c300dbfae91ef3d2cb1aeddacaa7871706fc0d2c7c8b