Malicious PDF — malware analysis report

Static analysis result for SHA-256 6267b4a508499f28…

MALICIOUS

PDF

76.3 KB Created: 2021-03-11 13:56:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: a13ad6fa1119ea16044cf21be5c59673 SHA-1: 41a3818458a31ff63944ffe6bdea908adeaa62f8 SHA-256: 6267b4a508499f285c322a5dee2e6fb96d4439ecfc20f2169b0b03f407aaa95d
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL that appears to be a lure, disguised as a search result for a fitness-related query. The presence of multiple unknown URLs suggests a phishing campaign aiming to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/strik?utm_term=is+a+max+trainer+better+than+an+elliptical PDF link annotation
    • http://damvglaz6.xyz/663395366667vpew.pdfIn PDF document text
    • https://cdn.sqhk.co/karewura/BA70Hhb/sample_kick_off_meeting_template.pdfIn PDF document text
    • http://prostosite.site/cuanto_vale_un_milimetro_en_centimetroscootr.pdfIn PDF document text
    • http://toportt.online/82059530781ymk8h.pdfIn PDF document text
    • http://es50off.pro/85213546706ic7zl.pdfIn PDF document text
    • https://cdn.sqhk.co/nowonipewo/i2nciaP/dinosaur_face_simple_drawing.pdfIn PDF document text
    • http://lamovingcompany.com/jilamulaxemuzaxonigifujosdiyq3.pdfIn PDF document text
    • http://4gusevshop.space/dornier_medtech_annual_reportnl5a3.pdfIn PDF document text
    • https://cdn.sqhk.co/wibononuve/higcihn/dinosaur_phone_wallpaper_download.pdfIn PDF document text
    • https://cdn.sqhk.co/xubulozirod/fvfT0ja/83304673177.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/xonaxevetaf/sakubadimil.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/information_management_technology.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/human_development_index_2017_report.pdfIn PDF document text
    • https://s3.amazonaws.com/pirosisob/rimirotiwenosegikipaxaru.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/formal_dress_hire_adelaide.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/lozezineji.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/salter_kitchen_scale_battery_replacement.pdfIn PDF document text
    • https://s3.amazonaws.com/rowubunak/badnamiya_song_ringtone.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_off0000edcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDCC 5320 bytes
SHA-256: e66affdfcbb70be3c69d40372cd7211024ac20059370f02f3bcfc5c9f774a80c
font_01_sfnt_off0000ffb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFB4 10588 bytes
SHA-256: a2a7441306effa0cc2aadc448b58b6022b0af04bdd4ff341a0ca02353f1c4593

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