Malicious PDF — malware analysis report

Static analysis result for SHA-256 d084c5ec8a15fe6e…

MALICIOUS

PDF

71.9 KB Created: 2021-02-12 09:15:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1d170930ce9e2d7daa3622dbcfc60ae1 SHA-1: 549771a295e70f0eee8c904d75aca4904e3d5491 SHA-256: d084c5ec8a15fe6e343e5fbc7c0ed43e68dff8199ae5fc439a5e63103322009c
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://baarspo.ru/wix?keyword=elementary+spanish+1+syllabus PDF link annotation
    • https://tavutafaj.weebly.com/uploads/1/3/1/4/131482866/mimobuvomavapazogaxo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424666/normal_6003e515db92f.pdfIn PDF document text
    • https://nebemono.weebly.com/uploads/1/3/4/3/134331812/bivuxugamofalanik.pdfIn PDF document text
    • http://usblighter24.site/integrated_math_3_textbook_answers_mcgraw_hilly1kj6.pdfIn PDF document text
    • http://nakidki-alkantara.xyz/2868786712fim8r.pdfIn PDF document text
    • https://cdn.sqhk.co/ketejeti/aIgdjar/74467638056.pdfIn PDF document text
    • https://sulezesolujoseg.weebly.com/uploads/1/3/1/4/131452841/tewotobifononenawu.pdfIn PDF document text
    • https://mogefitinovodug.weebly.com/uploads/1/3/0/9/130969954/gufebevajuradexos.pdfIn PDF document text
    • http://net-klientov.ru/tratados_internacionales_de_colombiayfdjh.pdfIn PDF document text
    • https://cdn.sqhk.co/waximanodif/Ehdgcge/mine_survival_mod_apk_unlock_all_characters.pdfIn PDF document text
    • https://guxitokos.weebly.com/uploads/1/3/2/6/132681611/wefetupavujevow_lalusimimoli_mavijatup_xozilo.pdfIn PDF document text
    • http://promooffer.site/816636271648999u.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fanurumuge.epizy.com/85266618773.pdfIn PDF document text
    • http://fuguduvuduwir.epizy.com/3_column_word_template.pdfIn PDF document text
    • http://mugevewobota.rf.gd/55613038160.pdfIn PDF document text
    • http://gogewarixisude.epizy.com/ferik.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE18 5084 bytes
SHA-256: d7269ae7186f744557c2774252200876b1966dbd672424bd83be30c8ebe8d1ee
font_01_sfnt_off0000df30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF30 10916 bytes
SHA-256: 31dd11ac65aa306eaa34f9f3a5141f40eda0886682a52a74ab4c8fca1aa00e37
font_02_sfnt_off0001047f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1047F 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333