Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6e31a368ff5628a…

MALICIOUS

PDF

74.6 KB Created: 2021-04-09 15:04:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 429b602de83dc80a4f54021d1ad44e8c SHA-1: a9e341932ed6f8dc6c068b768692a13eee5ee91c SHA-256: e6e31a368ff5628ab65df9bec26009644c0dd711555caa72f21a0a4a52c0afcc
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that appears to be a lure, disguised as a commercial lease agreement. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the presence of an external URI suggests a redirection to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://baarspo.ru/strik?utm_term=contrato+de+arrendamiento+local+comercial+word+mexico PDF link annotation
    • http://bagerisevi.scienceontheweb.net/zavuwezizufevobolimesi.pdfIn PDF document text
    • http://soinjaga.ru/how_to_make_my_house_airtightraigk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393759/normal_60264cf180eb9.pdfIn PDF document text
    • http://nenonazuf.scienceontheweb.net/sotugijilumiseta.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486763/normal_5feb339762fd1.pdfIn PDF document text
    • http://organicnu.info/fijavobezimivufigidolovibblut.pdfIn PDF document text
    • http://tujidal.mypressonline.com/13170419671.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422161/normal_5fcc9233e07ce.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471686/normal_5ff9d89198fa6.pdfIn PDF document text
    • http://chistohome.moscow/graco_snugride_30_assembly_instructionsq79g9.pdfIn PDF document text
    • http://xeeewq.xyz/zerinudotohkz8.pdfIn PDF document text
    • http://mezogevap.mypressonline.com/analyse_biochimique_sanguine.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mujebik.atwebpages.com/luliwovenusofegor.pdfIn PDF document text
    • https://s3.amazonaws.com/geraromu/mukunolobozorovelemapu.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/idioms_worksheets_for_grade_3.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/angela_manuel_davis_bio.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/74573991445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a3c5559-28bc-4f8e-9eb5-7d6702e6d7fc/14030713707.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abd009d9-4cc2-4760-91c0-47528a25034f/3_nephi_8-10.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff60b66b-1b18-4868-9d1d-aececf0d2fdb/nikon_d5200_price_in_bangladesh_flora.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_off0000e4f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4F3 4972 bytes
SHA-256: df191ead94bcb41e0b12de191c0629b41479751ab56f8f6676988cb21cc17c88
font_01_sfnt_off0000f5d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D6 11304 bytes
SHA-256: 52bd38f04bd479dfbdbd8c81a84ee912f48cf92694cf5d07dfd5683d48616721

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