Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f62373a87e6b606…

MALICIOUS

PDF

67.3 KB Created: 2021-02-05 23:54:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 30e4822b332e7f78ae263d293c9e6d65 SHA-1: 0119217208ca491bca8790b9fa5f83e4409d5b86 SHA-256: 3f62373a87e6b60649d51d06e6ae28fc8e8604f8ed88fdc6d2bc574ef1a50248
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/wb?keyword=musik%20bunga%20citra%20lestari%20kecewa PDF link annotation
    • http://tokio-2020.fun/67842763678br29x.pdfIn PDF document text
    • https://cdn.sqhk.co/wowedofu/Fhdjhhh/the_boy_adventure.pdfIn PDF document text
    • http://arendaavto.taxi/pafivebedmtwo0.pdfIn PDF document text
    • http://13millions.store/46063886490qj15d.pdfIn PDF document text
    • https://cdn.sqhk.co/pimupigedu/gihLMyF/jiserakuvagidatutedijig.pdfIn PDF document text
    • https://vugesajovor.weebly.com/uploads/1/3/4/2/134265649/wobizijutetaja.pdfIn PDF document text
    • http://abwaab.su/mususugemozaxolyie6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484631/normal_5fda8b0c3cd38.pdfIn PDF document text
    • https://cdn.sqhk.co/matajikiwov/iajgUia/color_fill_3d_online_spielen.pdfIn PDF document text
    • https://nulasexojexof.weebly.com/uploads/1/3/4/0/134012614/9158555.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470024/normal_5fe2707b43e4c.pdfIn PDF document text
    • http://kpupnov.pro/29975782351f0jmv.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/kisimujuk/monthly_sales_analysis_report_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/18786175306.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/35524961023.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/48494216648.pdfIn PDF document text
    • https://s3.amazonaws.com/biwubeleba/23738972468.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/christina_grimmie_songs.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_off0000c850.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC850 5268 bytes
SHA-256: 3b844892bf50a90eac6bf1bd3c51b0a3032b3e81ceb6953b43601c1041ace50b
font_01_sfnt_off0000da6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA6D 11836 bytes
SHA-256: 65815a187dc0b42c91e94de36002737ed78c0d058c5381de8a82d52d0c5519f6