Malicious PDF — malware analysis report

Static analysis result for SHA-256 21f08cc7717cd387…

MALICIOUS

PDF

69.6 KB Created: 2021-02-13 05:45:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 9f232f16e900b586828fcb02b7ee00b5 SHA-1: df0095f2c96856998d8bb3fdff3548a58cfea82f SHA-256: 21f08cc7717cd387e56990fae7e01a466f001a2d5b674dd1eb7e0bd8c44a522d
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=montana+driver%2527s+manual+2019 PDF link annotation
    • http://yoganchik.space/compassion_focused_therapy_worksheetsnumxy.pdfIn PDF document text
    • https://titoboxe.weebly.com/uploads/1/3/0/8/130874676/mibivuxeginad-wadekajorokog.pdfIn PDF document text
    • http://smartycredit.info/pijevapeximomovemaburoxz1pg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416143/normal_5fc6f1615c769.pdfIn PDF document text
    • https://musevupuli.weebly.com/uploads/1/3/1/4/131438528/8008573.pdfIn PDF document text
    • https://cdn.sqhk.co/kamozipu/YThcGje/mobile_legends_adventure_codes_2020_september.pdfIn PDF document text
    • https://wujumumokujot.weebly.com/uploads/1/3/4/6/134613036/dc7d5b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372399/normal_5fd9b2275899b.pdfIn PDF document text
    • https://molulodanewiv.weebly.com/uploads/1/3/1/6/131606256/3560893.pdfIn PDF document text
    • http://gromstroy.com/best_cisa_study_guide0tvsf.pdfIn PDF document text
    • http://pochta-24.cc/lopam1lcl5.pdfIn PDF document text
    • http://cybety.xyz/free_download_dirt_xtreme_mod_apk3za6p.pdfIn PDF document text
    • http://cupe1.ru/hexadecimal_decimal_and_binary_conversion_worksheet_answersy4ara.pdfIn PDF document text
    • http://zoosalon.org/660313160901izb6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392864/normal_5fe045fae8b1f.pdfIn PDF document text
    • http://sokuzise.iblogger.org/bodacious_bbq_bossier_menu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://desetezovadu.epizy.com/dotnet_new_install_spa_templates.pdfIn PDF document text
    • http://wutugegazebezop.rf.gd/73829291041.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_off0000d3ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3BA 5552 bytes
SHA-256: ac0c2b57f685b4a06e9e7600a6f4253606d351683bdb3d9106d9a5e4816e0f67
font_01_sfnt_off0000e69d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE69D 10156 bytes
SHA-256: 99a257829675d319f13ef5d711fa48adde41d9e3afccb7bd5f0a1d64f5f229fa