Malicious PDF — malware analysis report

Static analysis result for SHA-256 e74c7a88a27b8728…

MALICIOUS

PDF

78.3 KB Created: 2021-01-06 19:52:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9b38eb36f6ea4f59c3a1132ab597000f SHA-1: e7d850816af25c176d48cb8d6c1f7cc5e414ff1e SHA-256: e74c7a88a27b87283e71c6bc85b6c5223a981c9bd8bafee77be5b6c40ed25a0e
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to a suspicious domain, which is a common tactic for phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9870

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
  • 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://trafffi.ru/aws?utm_term=manganese+bronze+valve+guides
    • https://cdn.sqhk.co/lanumakefu/ITwFigy/wimegesujuwoxogafup.pdf
    • https://purolejomi.weebly.com/uploads/1/3/0/7/130776639/8084845.pdf
    • https://cdn-cms.f-static.net/uploads/4481162/normal_5fb6db9167c89.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/830078d6-d607-4cae-93b7-789b9bba9cbe/1818453358.pdf
    • https://s3.amazonaws.com/muxegeza/fujifilm_instax_mini_instant_film_10_sheets.pdf
    • https://uploads.strikinglycdn.com/files/fd7243b2-d6b8-4a7a-9f0d-c02689404388/dokutululumexivesi.pdf
    • https://s3.amazonaws.com/wemupajese/acwa_code_of_ethics.pdf
    • https://s3.amazonaws.com/fizup/zodobexovelel.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f421.bin
32988d6f9852901f6859932cb36f515a585a1da1fafce80c8313450176d19966		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF421 5248 bytes
font_01_sfnt_off00010623.bin
b8a55a0a6f05f995eb8f48821727465f1c36a6edc370e56cb8aa028689998ee0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10623 11332 bytes

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