Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2f764d4da0cc4d7…

MALICIOUS

PDF

71.9 KB Created: 2021-02-01 17:09:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 237c3e0543cac7a556adbe3113387fea SHA-1: fa886dbd87ae43a3613d9cfaf9f2069147014a5c SHA-256: e2f764d4da0cc4d7e09f81a8e6e6e045a82cf15b1b9ee2bc3152a2ee23855ff6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/aws?utm_term=agile+transformation+consultant+jobs PDF link annotation
    • https://cdn.sqhk.co/tipefima/jd9I8hh/jojokasozazapizebenuzalam.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374685/normal_5fce74d73c10e.pdfIn PDF document text
    • https://cdn.sqhk.co/muruwake/REkdWM9/teachers_assistant_certification.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494430/normal_5fdf28f8ef7d5.pdfIn PDF document text
    • https://kuxiwidozerapi.weebly.com/uploads/1/3/4/7/134728536/lafunipet_simokikuzalekow_kuzew_lewubatasinedir.pdfIn PDF document text
    • https://futinubub.weebly.com/uploads/1/3/5/3/135328842/8305438.pdfIn PDF document text
    • https://gimepokik.weebly.com/uploads/1/3/1/6/131636980/xifekaxifag.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zapofekeba.rf.gd/jogenonabetowafom.pdfIn PDF document text
    • http://gusufarafedi.epizy.com/85985957707.pdfIn PDF document text
    • http://xesesezaxemu.epizy.com/formel_1_start_heute_sky.pdfIn PDF document text
    • http://tupemovon.rf.gd/30828019787.pdfIn PDF document text
    • http://bimegisekew.epizy.com/fastled_library_guide.pdfIn PDF document text
    • http://zobawukesilebaf.epizy.com/my_school_kindergarten_worksheets.pdfIn PDF document text
    • http://xetoluwe.epizy.com/53606271146.pdfIn PDF document text
    • http://bideliv.rf.gd/annamalai_university_dde_convocation_form_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_off0000dbdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBDB 5408 bytes
SHA-256: 5d0acbfe1acab57a93108baa92721196e7f96bac8cb221f53cfa098cf7c9929b
font_01_sfnt_off0000ee35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE35 10732 bytes
SHA-256: e18f37f46a347bcd01acf84997e8278f3ecb30ba29d3a3ca7970033b92ec67c5