Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdbd9f0bd5b2ef8f…

MALICIOUS

PDF

68.7 KB Created: 2021-02-22 03:16:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bf8ef9278f61f709a2763ff7652ad903 SHA-1: 0b150f73ed9eb4f155c9aa4c29fe95fb8693450f SHA-256: bdbd9f0bd5b2ef8f9be059d5954bae6653e56a4cde0852db0be1c2df9538dba6
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://druttle.ru/wix?keyword=algebra+1+memes PDF link annotation
    • http://generalmassage.online/48922957939apls6.pdfIn PDF document text
    • https://cdn.sqhk.co/giwumazusew/gc2ic2R/real_boxing_2_creed.pdfIn PDF document text
    • https://xidoxuzi.weebly.com/uploads/1/3/4/7/134707988/nubafaz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379049/normal_5fccbc5aac5be.pdfIn PDF document text
    • http://filfex.ru/jemosozuforugixodimwkoy.pdfIn PDF document text
    • https://biwoxigaluna.weebly.com/uploads/1/3/2/6/132681579/dibitof.pdfIn PDF document text
    • http://gaberiwilovu.22web.org/xipanejavivusatuvazo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481166/normal_5fee105d0280c.pdfIn PDF document text
    • http://znalomstvavip.site/logidonitogetivoxefozoguwhpyy.pdfIn PDF document text
    • https://guzepebizosi.weebly.com/uploads/1/3/4/8/134880367/forawukujiv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409818/normal_600d0fab780db.pdfIn PDF document text
    • http://dunizajo.66ghz.com/cisco_academy_chapter_7_test_answers.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/rujabepifar/243949942.pdfIn PDF document text
    • http://ratadipemor.epizy.com/student_exploration_coulomb_force_gizmo_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/mumijejowuvorixawagod.pdfIn PDF document text
    • http://ridimonaf.rf.gd/campbell_hausfeld_air_compressor_parts_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/sengoku_basara_ppsspp_ukuran_kecil.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/quartz_liquid_glass_data_sheet.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC613 5188 bytes
SHA-256: 30aa9be0df814366be4dd9fe41bca72a4d1c711f24a39e3871868c0eb4ad47ed
font_01_sfnt_off0000d79d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD79D 2484 bytes
SHA-256: 8085e85f7ab2ec424f2d1e8603e5adaf13eeac0702cda241d6a7218dd8b8c71c
font_02_sfnt_off0000e23f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE23F 10408 bytes
SHA-256: a66e73de1e2587891965735b8f5ebd2e2f68ba66cf42057f10b0c4a85cdd227b