Malicious PDF — malware analysis report

Static analysis result for SHA-256 a158bc3d13e062e9…

MALICIOUS

PDF

74.8 KB Created: 2021-01-30 08:16:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 72369e31f63a9b7952f9cbf8a088edc2 SHA-1: 9ae59dca3f91650f9fe18b0e60aacfbf0ef6016f SHA-256: a158bc3d13e062e9ff6bc89511132b130af8012749cdcf99950827f9a0c02fa1
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/wb?keyword=man%20down%20where%20you%20from%20meme PDF link annotation
    • https://cdn.sqhk.co/badaxiloru/2rqb4sF/pinkfong_baby_shark.pdfIn PDF document text
    • https://rovorakule.weebly.com/uploads/1/3/4/7/134774255/6724fb451f3ee51.pdfIn PDF document text
    • http://kuxogajow.iblogger.org/49522216178.pdfIn PDF document text
    • https://cdn.sqhk.co/ludibipimilu/ieAhb0U/kiki_s_delivery_service_costume_diy.pdfIn PDF document text
    • http://sosunimepewe.22web.org/devemes.pdfIn PDF document text
    • https://bamukafigozoxin.weebly.com/uploads/1/3/4/8/134861202/1425077.pdfIn PDF document text
    • http://zakababonedip.iblogger.org/18304709818.pdfIn PDF document text
    • https://cdn.sqhk.co/notizejamebo/0kk95Se/nivikesavapemaxuduta.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mujixexebekipan.rf.gd/sociological_analysis.pdfIn PDF document text
    • http://mafakizukizunof.epizy.com/master_thesis_presentation_template_ppt.pdfIn PDF document text
    • http://solatilexi.epizy.com/addition_math_worksheets_for_grade_2.pdfIn PDF document text
    • http://wuvuwipiwizovid.epizy.com/auditoria_ambiental_caso_practico.pdfIn PDF document text
    • http://mowadavukusut.epizy.com/loan_agreement_template_docx.pdfIn PDF document text
    • http://vometavofol.epizy.com/r_ggplot_cheat_sheet.pdfIn PDF document text
    • http://kavunuses.epizy.com/sazizogulukolapomu.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_off0000e832.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE832 5136 bytes
SHA-256: 061e1e11bf76173be761be51de79bb6de1cebf95ecd8fb7ad8442294c8f6dab9
font_01_sfnt_off0000f9aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9AA 10824 bytes
SHA-256: e1c0b3d98ab68b142896b138584c7549bc2b8981e6ed79de09d919b9c6bf180c