Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c2a16fb0454ce1f…

MALICIOUS

PDF

69.4 KB Created: 2021-02-14 09:05:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5c19970fb02058e6d4633dd496c5dbb9 SHA-1: f73ece4377d1f5b490af8fa6e06634c7c3405c76 SHA-256: 4c2a16fb0454ce1fdee9d3786f8699f998905f779d1a8d16a434a1faa4fb1db7
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://maypoin.ru/wix?keyword=leupold+bx-3+mojave+10x42+reviews PDF link annotation
    • https://givifajilodox.weebly.com/uploads/1/3/0/8/130874655/7a4cc249daa9.pdfIn PDF document text
    • http://jixuboxa.iblogger.org/dowagitekuwefuteva.pdfIn PDF document text
    • https://xaziribubeka.weebly.com/uploads/1/3/4/3/134397614/nifujow.pdfIn PDF document text
    • http://mavurelaro.22web.org/apple_airport_extreme_router_manual.pdfIn PDF document text
    • https://sisekiki.weebly.com/uploads/1/3/4/6/134622657/e519aa630098.pdfIn PDF document text
    • http://kosiwixiwumizu.iblogger.org/staphylococcus_catalasa.pdfIn PDF document text
    • https://rirosivipoxutu.weebly.com/uploads/1/3/2/3/132302830/kibebekiko-torasomog.pdfIn PDF document text
    • https://vezutokabev.weebly.com/uploads/1/3/4/7/134758566/0b6d52058b0308b.pdfIn PDF document text
    • https://nibolujadi.weebly.com/uploads/1/3/1/3/131381302/jajijurididetizi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sajojuwew.rf.gd/free_illinois_apartment_lease_form.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/zatezuwesotaz.pdfIn PDF document text
    • http://ropurudowilume.rf.gd/jogos_xbox_360_bloqueado.pdfIn PDF document text
    • http://diruxepuf.epizy.com/advance_directive_sample_form.pdfIn PDF document text
    • http://zudosikewemer.epizy.com/26111267630.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/balancing_chemical_equations_worksheet_answers_show_work.pdfIn PDF document text
    • http://muvalinifotu.rf.gd/76202944772.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/2800372810.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/7516365988.pdfIn PDF document text
    • https://s3.amazonaws.com/jinotugiwomo/making_inferences_worksheets_grade_10.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_off0000d07d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD07D 6092 bytes
SHA-256: 37f1e4f50cd2303a22897e53bbea9757b5c4803a1e081fa4791818b926d87b19
font_01_sfnt_off0000e54a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE54A 10332 bytes
SHA-256: 337ad165a775f8713024a4ee1fb8b159de691aa3fab660dfac4ffeeaa22726ca