Malicious PDF — malware analysis report

Static analysis result for SHA-256 e330f808d97ce972…

MALICIOUS

PDF

65.2 KB Created: 2021-02-02 01:53:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 1d65313d0daacd8bb5ce5e86d8168afa SHA-1: c3de8fd4b8855dfad52901e708496cf21ce588bb SHA-256: e330f808d97ce9728c6ed71ae0a0d82d079dc58e32c65a50836e57f12df48ebd
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics, including ML classification and ClamAV, as malicious and phishing-related. It contains numerous external URIs and is identified as a link farm hosted on disposable domains, suggesting an attempt to redirect users to malicious content. Although no scripts were explicitly extracted, the PDF structure and embedded URIs indicate a high likelihood of it being used to deliver a secondary payload or lead users to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafftec.ru/wb?keyword=packers%20vs%20bears%202019%20full%20game PDF link annotation
    • https://cdn.sqhk.co/xovujiroveg/c3jagjK/46914857058.pdfIn PDF document text
    • https://kukatuvitakutir.weebly.com/uploads/1/3/4/6/134690336/3387016.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485823/normal_5fe6f76f2cd58.pdfIn PDF document text
    • https://cdn.sqhk.co/jowapezo/gcjiSyQ/20459048190.pdfIn PDF document text
    • https://cdn.sqhk.co/dubutemaruxu/indeN9P/sizilamibusedonuwika.pdfIn PDF document text
    • https://wovinimupilof.weebly.com/uploads/1/3/1/4/131453577/cad03ffc.pdfIn PDF document text
    • https://podotetu.weebly.com/uploads/1/3/4/0/134017986/fanuxidafixaj.pdfIn PDF document text
    • https://gifetapajuloper.weebly.com/uploads/1/3/4/6/134682222/6961320.pdfIn PDF document text
    • https://doxekitonibi.weebly.com/uploads/1/3/5/3/135326555/butawovelatoji_dulazokekibuvap.pdfIn PDF document text
    • https://cdn.sqhk.co/nexoratuxi/ifjfjeP/scratch_carnival_scratch_match_games.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490370/normal_5fd0757b2eab8.pdfIn PDF document text
    • https://waxebusesu.weebly.com/uploads/1/3/4/7/134770319/bcca0fc51.pdfIn PDF document text
    • https://jipagulus.weebly.com/uploads/1/3/1/3/131379543/nilupolagu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386848/normal_5fd039ea9ed9a.pdfIn PDF document text
    • https://lepamume.weebly.com/uploads/1/3/4/8/134882258/5201deb11.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456999/normal_5fcd7d46ce3f9.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/xonobijikivo/77840660277.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/pisepiwamesexav.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_off0000be9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE9A 5948 bytes
SHA-256: 082ff7be32d13568e2f682b6cbde39c3bc120d146b4036ca3e79edf6be34a932
font_01_sfnt_off0000d2da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2DA 10904 bytes
SHA-256: f2d24d3d947bbcad2f5a25fb7b4981ba676ff3bd406397bb0b1a754f15755daf

Open this report in the interactive analyzer, or submit your own file for analysis.