Malicious PDF — malware analysis report

Static analysis result for SHA-256 3324276426a7d8c7…

MALICIOUS

PDF

65.7 KB Created: 2021-02-22 22:38:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 9a0af742dde1f5a19a584cf30c602e3a SHA-1: 369b8943355309e2daeb98e247651422eafcd297 SHA-256: 3324276426a7d8c77cd1e2eb5ff5095e8c58956ad06ddc95a867357c2d35ee62
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://seumenha.ru/wix?keyword=covering+and+surrounding+ace+answers PDF link annotation
    • https://gokuxevi.weebly.com/uploads/1/3/4/0/134017514/106553.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459321/normal_5fdbb4b1de821.pdfIn PDF document text
    • http://argo-tourism.com/upstream_pre_intermediate_workbook_keyh1jmi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416151/normal_5fd652ab0d0d4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414501/normal_5fcb6b9139d28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418184/normal_5fd9050ae21e2.pdfIn PDF document text
    • https://gadabuji.weebly.com/uploads/1/3/4/7/134715747/4602650.pdfIn PDF document text
    • https://viremekim.weebly.com/uploads/1/3/1/4/131407965/xugasiduxanamus.pdfIn PDF document text
    • http://rukozhop-guide.com/hotline_miami_ps4_trophy_guide7hhfx.pdfIn PDF document text
    • http://believes.space/cisco_ccna_security_official_exam_certification_guidemt0p7.pdfIn PDF document text
    • http://fapseo.ru/patirup717f1.pdfIn PDF document text
    • https://biwaxosele.weebly.com/uploads/1/3/1/4/131437294/vanesiveduzaz.pdfIn PDF document text
    • http://xifotole.iblogger.org/ppsspp_2018_games.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/kuxuxemu/you_are_the_reason_song_mp4.pdfIn PDF document text
    • http://kakogajoxe.epizy.com/teamviewer_gratis_baixaki.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/82101759257.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/alkene_alkyne_reactions_worksheet.pdfIn PDF document text
    • http://suwiwozeko.rf.gd/freeze_spreadsheet_excel_2010.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_off0000c5d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5D6 5132 bytes
SHA-256: f2512ace3f7fa85a664d02b0b49bc9f8954cc581f260edf224708161efa39242
font_01_sfnt_off0000d76d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD76D 9872 bytes
SHA-256: 3d985a987164fb3cd4d13ca15a981a344626a5a81de587df8b734a6cfb6ea63e