Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b9443090ccf1406…

MALICIOUS

PDF

70.3 KB Created: 2021-02-17 07:33:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 08dbe4c4e8080fde6ac3d1e2c725addb SHA-1: 68820b9edf548ebf94b00f44dc1a4f7f685d3d88 SHA-256: 5b9443090ccf140631355caf6cdda982e1a8631f8c6fef9b583dd5a4c2c2ff79
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=malgudi+days+pdf+read+online PDF link annotation
    • http://chelamela.org/gta_v_license_platebu802.pdfIn PDF document text
    • http://ultra0.space/60734502198w136j.pdfIn PDF document text
    • https://doruxajowivabog.weebly.com/uploads/1/3/4/8/134870444/5601205.pdfIn PDF document text
    • https://pepesavujol.weebly.com/uploads/1/3/1/0/131071240/fexalaju.pdfIn PDF document text
    • http://artrosil.xyz/israeli_national_anthem_piano_sheet_music1ydm2.pdfIn PDF document text
    • http://reactivaperu-2020.com/anno_2205_veteran_guidequvgi.pdfIn PDF document text
    • http://disconto50.info/76175867674tqnk1.pdfIn PDF document text
    • https://vinofuloro.weebly.com/uploads/1/3/4/8/134850824/lukalefib-dozozubekaku-fawilajike-vuvotixi.pdfIn PDF document text
    • https://fazajamol.weebly.com/uploads/1/3/2/7/132740605/gugufeb_risajidax.pdfIn PDF document text
    • https://jupojunidukeze.weebly.com/uploads/1/3/4/0/134012404/3850585.pdfIn PDF document text
    • https://waduwira.weebly.com/uploads/1/3/0/9/130969623/2a9a97e.pdfIn PDF document text
    • http://raisinslabs.club/68448090605yvlpm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sarupuxev.epizy.com/19920983210.pdfIn PDF document text
    • http://lonelogu.epizy.com/manual_acreditacion_en_salud_colombia.pdfIn PDF document text
    • http://nusavigosewu.epizy.com/savave.pdfIn PDF document text
    • https://s3.amazonaws.com/wavunot/android_emulator_wiki.pdfIn PDF document text
    • http://xewaxal.epizy.com/57249306362.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/natenila.pdfIn PDF document text
    • https://s3.amazonaws.com/wavunot/demand_driven_material_requirements_planning.pdfIn PDF document text
    • http://puzexexaniledow.epizy.com/ergomed_annual_report.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_off0000d5aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5AA 5316 bytes
SHA-256: 35a7008ad0e660bd8d5c64d8dbc545f71e48c9e003aac2e68ed7911c02b9b92e
font_01_sfnt_off0000e7e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E1 10512 bytes
SHA-256: 609cfb1bbde1f9b02b1e2cf778dabf1108972d660ee6abfa194a84ff9ae02486