Malicious PDF — malware analysis report

Static analysis result for SHA-256 db2d116db73b418d…

MALICIOUS

PDF

68.2 KB Created: 2021-02-24 12:45:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b6cacf3bf7d227b0e32848a5b3bf54d9 SHA-1: 4091d13fb55e580cdcb00561b2560e790f132595 SHA-256: db2d116db73b418d88077c19ac8d967896aec082fae2d5327977775c2252ea62
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/wix?keyword=echo+dot+manual+pdf PDF link annotation
    • https://cdn.sqhk.co/levowexesu/gg3tjfP/car_parts_usa_free_shipping.pdfIn PDF document text
    • https://cdn.sqhk.co/jasolugud/ghaIjfk/bagevotusowaboxijarezij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381082/normal_6015b4ca4e5e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376359/normal_6028fd09072b0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412570/normal_600271bb3eb8d.pdfIn PDF document text
    • http://apeech.ru/transformers_bot_shots_game_onlineb8idp.pdfIn PDF document text
    • http://xosudodobuj.iblogger.org/cccam_2._0._11_ipk.pdfIn PDF document text
    • https://tazidafojunuxu.weebly.com/uploads/1/3/3/9/133997245/3766397.pdfIn PDF document text
    • http://vukizupejudula.22web.org/84178744864.pdfIn PDF document text
    • https://namowabe.weebly.com/uploads/1/3/4/0/134000139/4646522.pdfIn PDF document text
    • https://cdn.sqhk.co/xijoxerivu/Jgeii5m/zivejebufijaba.pdfIn PDF document text
    • https://cdn.sqhk.co/gasupewu/je8idGe/axe._io_brutal_survival_battleground.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/pipaneku/61368530446.pdfIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/final_fantasy_ix_strategy_guide.pdfIn PDF document text
    • http://wojobawezelo.rf.gd/enteral_feeding_guidelines_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/formative_assessment_and_summative_assessment_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxefemebidaz/code_formatter_online_php.pdfIn PDF document text
    • http://wujukigow.rf.gd/62089495690.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_off0000cef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEF3 5080 bytes
SHA-256: 5bae44b849aa12229274bd895ee036721a07fb1241523d3d34be82b6ce140d74
font_01_sfnt_off0000e021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE021 10444 bytes
SHA-256: 09c11901b00ad4cb025d764f143f69a118f20a4870ffb8fdd42ae395673f0780