Malicious PDF — malware analysis report

Static analysis result for SHA-256 182d03bf1a3a14da…

MALICIOUS

PDF

75.7 KB Created: 2021-01-06 06:04:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 7b574fbb1a565233e047b9325e875aee SHA-1: c640d0d512298efb83f65c05d51b71cbb44f568b SHA-256: 182d03bf1a3a14da9a123b4000dd2f4c56d1d98df8e3f754bd684ee1515b6f7f
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ggtraff.ru'. Additionally, a machine learning classifier and ClamAV both flagged the file as malicious, with ClamAV identifying it as 'Pdf.Phishing.Trojan'. The embedded URL is the primary indicator of malicious intent, likely serving as a lure for phishing or to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/aws?utm_term=oblivion+mods+file In PDF document text
    • https://static.s123-cdn-static.com/uploads/4421782/normal_5fca2e3439401.pdfIn PDF document text
    • https://wubigunes.weebly.com/uploads/1/3/4/5/134507070/vibege.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392854/normal_5fa06b5d88f18.pdfIn PDF document text
    • https://cdn.sqhk.co/zetanitanedo/JKDjcq5/65113076476.pdfIn PDF document text
    • https://tumugisoluxadez.weebly.com/uploads/1/3/4/6/134601474/5762088.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/jivuxo/rurinoxogeri.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/jasper_reports_pricing.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/57978949855.pdfIn PDF document text
    • https://s3.amazonaws.com/fonibinaraj/xogoviwedologofezo.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/american_truck_simulator_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/72257269579.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_off0000ecef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECEF 4972 bytes
SHA-256: 05c664e3f72252ccfc76b0c8a6f47abe301cebf871cc37fde2373bbc575f5e27
font_01_sfnt_off0000fdd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDD2 10724 bytes
SHA-256: a2e0f32853fb5b4e206b452f7c864042249ec8a8c356641cc53b3e29f82aa864

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