Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ddfffe916d4acb3…

MALICIOUS

PDF

71.3 KB Created: 2021-02-13 22:48:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1c7d63b6e3f210ab8566839fb057a0bc SHA-1: 0185f12e963f736e92148c81ecd3a094c6330808 SHA-256: 7ddfffe916d4acb3f8dd30c26bf36c1e124c60ff3310dff8cff9eaffbb1c4e84
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://jottigo.ru/aws?utm_term=free+graphic+design+quote+template PDF link annotation
    • http://paxulujomem.iblogger.org/electromagnetic_spectrum_worksheet_grade_10.pdfIn PDF document text
    • http://iceteas.space/hsi_insiders_book_of_secrets1dd1b.pdfIn PDF document text
    • http://xofenejilomoz.iblogger.org/grammar_games_vk.pdfIn PDF document text
    • http://money-team.site/warezeguvuvolqq241.pdfIn PDF document text
    • https://cdn.sqhk.co/tomubozes/ekoGzjf/jarane.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477913/normal_5ff4df42b6ad4.pdfIn PDF document text
    • https://cdn.sqhk.co/puwonereb/Aqhigd5/miraculous_ladybug_season_3_episode_25.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393034/normal_5ffc7b8c298ec.pdfIn PDF document text
    • http://static-get.top/61904215207v5x80.pdfIn PDF document text
    • http://reactivaperu-2020.com/72804486282lp5iy.pdfIn PDF document text
    • https://cdn.sqhk.co/jotapepikota/heMxgeg/xoruxilukizupolexo.pdfIn PDF document text
    • https://cdn.sqhk.co/kibutonap/iaii1U0/gel_nails_step_by_step.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gusalixofunek.epizy.com/employees_provident_fund_board_annual_report.pdfIn PDF document text
    • http://bomemab.epizy.com/pectus_excavatum_adalah.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/letivixovekugifimazaximow.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_off0000da09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA09 5568 bytes
SHA-256: d236bef661e1cee7ae09e3dff9e1246fe309af56463b0ffc5b6dfda963248973
font_01_sfnt_off0000eccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECCB 10396 bytes
SHA-256: a19d37cfb721345f083875b3ebe745be2618d1eaf6b1bc742a03f253afdb5bfd