Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c19025594a094de…

MALICIOUS

PDF

81.4 KB Created: 2021-02-20 14:56:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 93c266f8c56e3cc83608e43e18867dad SHA-1: 18e53d4d89e300fa9b5a96c4551bd31c4d12e89a SHA-256: 1c19025594a094de366ae15df77cc9a866736cfa0d2c3690cb1aad9ae8418e75
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a website seemingly related to product pricing, which is a common lure for phishing or malware delivery. ClamAV and ML classifiers strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect the user to a malicious host.

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://jacksth.ru/wb?keyword=dell%20precision%20m6800%20price PDF link annotation
    • https://cdn.sqhk.co/vozupowo/SgjPhfd/fojotenevaregetaku.pdfIn PDF document text
    • https://cdn.sqhk.co/jifegusewe/H6nifgc/earthlink_internet_availability.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409797/normal_601cdd6233c34.pdfIn PDF document text
    • https://cdn.sqhk.co/pajokiman/nFhdjwD/sabamopumafodup.pdfIn PDF document text
    • https://cdn.sqhk.co/perajomipe/jaLgfih/60899017040.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379856/normal_600848f47030e.pdfIn PDF document text
    • https://cdn.sqhk.co/jadepibake/xvq4pja/11765931674.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478946/normal_60209b48cdea8.pdfIn PDF document text
    • https://cdn.sqhk.co/jafetegupam/mjegege/tauceti_technology_benchmark_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/podogule/g4JM7aj/download_reina_theme_park_inc.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/woxorojero/android_network_media_player_4._2_os.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/legudarifinirurozojonami.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/dabatak.pdfIn PDF document text
    • https://s3.amazonaws.com/xanunafojuloki/bauer_bodoni_italic.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/28174390514.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_off0000ff54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF54 5356 bytes
SHA-256: 129001edbfb725f6dd176a0201e8a276ee7eadbb39c5fc9f03f0eb987c9f5c25
font_01_sfnt_off0001117a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1117A 11532 bytes
SHA-256: 44148cd8492a2bf0cae1d2c49df7d37c8c5273b0a4a298a8e68993fcad6091fe